SINUMERIK 840D sl. Service - Functions. Manual (2018-2020)

NC programming

7.9 NC language commands

Name

$P_TC

Indices

Meaning

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$P_TCANG[n]

Meaning

Active angle of a tool holder axis; n = 1-2

Data type

REAL

Value range

Indices

Meaning

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$P_TCDIFF[n]

Meaning

Difference between calculated and used angle of a tool holder axis for grid (Hirth

tooth system) of the angle

Data type

REAL

Value range

Indices

Meaning

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$P_AD[n]

Meaning

Active tool offset; n = 1...31

n=1-25 $TC_DP1 to $TC_DP25

n=26 $TC_DPCE (optional)

n=27 $TC_DPH (optional)

n=28 $TC_DPV (optional)

n=29 $TC_DPV3 (optional)

n=30 $TC_DPV4 (optional)

n=31 $TC_DPV5 (optional)

Data type

DOUBLE

Value range

Indices

Meaning

Value range

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7.9 NC language commands

Name

$P_AD[n]

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$P_ADT[n]

Meaning

$P_ADT[n] - transformed data of the active tool

When compensation parameters are read, this parameter returns transformed val-

ues of the parameters controlled by the tool adapter transformation - if the active

tool is attached to an adapter.

n=1-25 $TC_DP1 to $TC_DP25

n=26 $TC_DPCE (optional)

n=27 $TC_DPH (optional)

n=28 $TC_DPV (optional)

n=29 $TC_DPV3 (optional)

n=30 $TC_DPV4 (optional)

n=31 $TC_DPV5 (optional)

Data type

DOUBLE

Value range

Indices

Meaning

Value range

n: Parameter numbers 1 to 31

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$AC_MSNUM

Meaning

Master spindle, return value

0: No spindle configured

1...n: Number of master spindle

Data type

Integer

Value range

Indices

Meaning

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

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7.9 NC language commands

Name

$P_MSNUM

Meaning

Master spindle

0: No spindle configured

1...n: Number of master spindle

Data type

Integer

Value range

Indices

Meaning

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$AC_MTHNUM

Meaning

Master tool holder

Value=0 no master tool holder defined

Value>0 number of the master tool holder

Data type

Integer

Value range

Indices

Meaning

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$P_MTHNUM

Meaning

Master tool holder

Value=0 no master tool holder defined

Value>0 number of the master tool holder

Data type

Integer

Value range

Indices

Meaning

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$TC_TP_MAX_VELO

Meaning

Maximum tool speed

Data type

REAL

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7.9 NC language commands

Name

$TC_TP_MAX_VELO

Value range

[0, DBL_MAX]

Indices

Internal T number

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$TC_TP_MAX_ACC

Meaning

Maximum rotary acceleration of the tool

Data type

REAL

Value range

[0, DBL_MAX]

Indices

Internal T number

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$TC_MPP_SP_MAX_ACC

Meaning

Only relevant, if $MC_TOOLHOLDER_MANAGEMENT>0: Spindle no. which is linked

to the tool holder.

Data type

Integer

Value range

[0, MAXNUM_SPIND_PER_CHAN]

Indices

Magazine no., magazine location no.

Value range

Access

Read in part pro-

Write in part pro-

Read in synchro-

Write in synchro-

gram

nous action

Implicit prepro-

cessing stop

Name

$P_MTHSDC

Meaning

Master tool holder no. or master spindle no. is determined with reference to the

active tool for the next D offset selection.

> 0 Successful read access

0 No master tool holder or no master spindle available.

The next D offset works with T0.

-1 TMMG not available

Data type

Integer

Value range

[-1, MAXNUM_AXES_PER_CHAN]

Indices

Magazine no., magazine location no.

Value range

Access

Read in part pro-

Write in part pro-

Read in synchron-

Write in synchron-

gram

ized action

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7.9 NC language commands

Name

$P_MTHSDC

Implicit prepro-

cessing stop

Name

$P_TH_OF_D

Meaning

Tool holder or spindle on which the active tool is located that contains the active D

offset.

> 0 Successful read access

0 No tool holder or spindle available as reference because, for example, no D offset

is active.

-1 Function is not available

If read as OPI variable, this applies for the state in the current main run block.

Data type

Integer

Value range

[-1, MAXNUM_AXES_PER_CHAN]

Indices

Value range

Access

Read in part pro-

Write in part pro-

Read in synchron-

Write in synchron-

gram

ized action

Implicit prepro-

cessing stop

Name

$P_MTHNUM_BEFORE_SEARCH

Meaning

Master tool holder or master spindle before the block search or the test mode was

started.

>0: Successful read access

0: No tool holder or spindle available as reference because, for example, no D offset

is active.

-1: Function is not available

If the block search or test mode is completed, this variable contains the same value

as $P_MTHNUM, as of the next D programming.

If read as OPI variable, this applies for the state in the current main run block.

Data type

Integer

Value range

[-1, MAXNUM_AXES_PER_CHAN]

Indices

Value range

Access

Read in part pro-

Write in part pro-

Read in synchron-

Write in synchron-

gram

ized action

Implicit prepro-

cessing stop

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7.9 NC language commands

Name

$P_D_BEFORE_SEARCH

Meaning

The active D offset before the block search or the test mode was started.

>0: Successful read access

0: No tool holder or spindle available as reference because, for example, no D offset

was or is active.

-1: Function is not available

If the block search or test mode is completed, this variable contains the same value

as $P_TOOL, as of the next D programming.

If read as OPI variable, this applies for the state in the current main run block.

Data type

Integer

Value range

[-1, 32000]

Indices

Value range

Access

Read in part pro-

Write in part pro-

Read in synchron-

Write in synchron-

gram

ized action

Implicit prepro-

cessing stop

Name

$P_DL_BEFORE_SEARCH

Meaning

The active DL offset before the block search or the test mode was started.

>0: Successful read access

0: No tool holder or spindle available as reference because, for example, no D offset was or is active

-1: Function is not available

If the block search or test mode is completed, this variable contains the same value as $P_DLNO, as of

the next D or DL programming.

If read as OPI variable, this applies for the state in the current main run block.

Data type

Integer

Value range

[-1, 6]

Indices

Value range

Access

Read in part program

Write in part program

Read in synchronized ac-

Write in synchronized

tion

action

Implicit preprocessing

stop

7.9.64

Variables for subroutine replacement technique

Tool management NC com-

Functions

mand

$C_T

Value of the programmed address T for cycle parameterization and T

function replacement

$C_T_PROG

Address T is programmed in a block with cycle call of T function replace-

ment

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7.9 NC language commands

Tool management NC com-

Functions

mand

$C_TS

For T or TCA replacement, returns the programmed tool identifier

($C_TS_PROG == TRUE).

$C_TS_PROG

Supplies TRUE, if a tool identifier has been programmed for the T or TCA

replacement.

$C_TE

Address extension for address T for subprogram call per T function

$C_D

Value of the programmed address D in the ISO mode for cycle parame-

terization

$C_D_PROG

Address is programmed in a block with cycle call

$C_DL

Value of the programmed address DL (additive tool offset) for a subpro-

gram call per M/T function replacement

$C_DL_PROG

Queries whether, for a subprogram call per M/T function replacement,

address DL (additive tool offset) was programmed

$C_TCA

Supplies TRUE, if the TCA replacement is active

$C_DUPLO_PROG

Supplies TRUE, if the duplo number for the TCA replacement has been

programmed

$C_DUPLO

Supplies the value of the programmed duplo number for TCA replace-

ment ($C_DUPLO_PROG == TRUE)

$C_THNO_PROG

Supplies TRUE, if the tool holder / spindle number for the TCA replace-

ment has been programmed

$C_THNO

Supplies the value of the programmed tool holder / spindle number for

TCA replacement ($C_THNO_PROG == TRUE)

7.9.65

Variables for tool change in synchronized action

Tool management NC

Functions

command

$AC_TC_FCT

Command number

-1: At the instant of reading, no tool management command is active

1: Move (load, unload,...)

2: Prepare change

3: Change ON

4: Change ON (turret, without M06)

5: Prepare change and change ON (with M06)

$AC_TC_STATUS

Acknowledgement status of PLC FC8/FC6

$AC_TC_THNO

Number of the tool holder or the spindle where the new tool shall be

loaded

$AC_TC_TNO

The internal T number of the tool to be loaded at change

0: There is no new tool

$AC_TC_MFN

Source magazine number of the new tool

0: There is no new tool

$AC_TC_LFN

Source location number of the new tool

0: There is no new tool

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7.9 NC language commands

Tool management NC

Functions

command

$AC_TC_MTN

Target magazine number of new tool

0: There is no new tool

$AC_TC_LTN

Target location number of the new tool

0: There is no new tool

$AC_TC_MMYN

Owner magazine of new tool

0: There is no new tool

$AC_TC_LMYN

Owner location magazine of new tool

0: There is no new tool

$AC_TC_MFO

Source magazine number of the old tool

0: There is no old tool

$AC_TC_LFO

Source location number of the old tool

0: There is no old tool

$AC_TC_MTO

Target magazine number of old tool

0: There is no old tool

$AC_TC_LTO

Target location number of the old tool

0: There is no old tool

$AC_TC_CMDT

Trigger variable to NC command output

Set for one interpolation cycle when NC outputs a new command.

$AC_TC_CMDC

Counter for NC command output

This variable is incremented by 1 at each NC command output. Can also be

written (zero setting).

$AC_TC_ACKT

Trigger variable to PLC command

Set for one interpolation cycle when PLC outputs a command to NC. Com-

mand acknowledgement or independent message (asynchronous trans-

fer).

$AC_TC_ACKC

Counter for PLC commands

This variable is incremented by 1 at each PLC command. Can also be writ-

ten (zero setting).

Access

Read in part program

Write in part pro-

Read in synchro-

gram

nous action

Implicit prepro-

cessing stop

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7.10 Definitions when programming data

7.10

Definitions when programming data

7.10.1

Tool change

Programming the tool selection

The tool change can be divided into 2 different steps:

1. Tool change preparation

2. Tool change execution

Steps 1-2 can be programmed separately or together in the NC program (see MD22550

TOOL_CHANGE_MODE).

Examples

• Tool change in one step: (turret)

- Tx; Make new tool x available and execute tool change.

• Tool change in two steps:

- Tx; Prepare tool change (select the tool)

- M06; Execute tool change

Note

If tool management is active, a tool can only be selected with the tool identifier (name). If a T

number is now programmed, then the number is used as the identifier (name). The tool must

then receive the T number as a name during loading.

• Tool change with identifier:

- T="DRILL"; A search is performed for tool with identifier "DRILL".

• Tool change with number as identifier:

- T="123"; A search is performed for tool with identifier "123". Alternatively, T123 can also

be programmed.

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7.10 Definitions when programming data

7.10.2

Cutting edge selection

Cutting edge selection after tool change

When a tool change has been completed, the tool cutting edge can be selected in one of the

following ways:

1. The offset number D is programmed.

2. The offset number D is not programmed and is specified by MD20270

$MC_CUTTING_EDGE_DEFAULT:

= 0: No automatic cutting edge selection after M06.

> 0: Number of the cutting edge, which is selected in accordance with M06.

= -1 The cutting edge no. of the old tool remains valid and also selected for the new tool after

M06.

= -2 The offset of the old tool remains valid and also selected for the new tool after M06.

Examples:

Tool selection with the following cutting edge selection

Cutting edge selection always refers to the tool that is changed with command M06.

T1 M06

Tool change - no D programmed; therefore offset selection according to MD

20270

Tool preselection

X .. Y.. Z...

Working with T1 and the offset from MD 20270

Offset D2 from T1 !!!

M06

Tool change; T5 is loaded at change - offset selection according to MD 20270

Tool preselection

X.., Y...

Working with T5 and the offset from MD 20270

When programming tool commands, main spindles and secondary spindles are programmed

differently. Only tool offset values of the main spindle tool are taken into account by the

geometry because only one active offset can be processed per channel. Processing of tool

commands for a secondary spindle is only relevant for signal output to the PLC and the function

GETSELT(...).

Spindle no. 2 = main spindle:

T2 = "DRILL"

M2 = 06

T1 = "MILL"

Select tool for secondary spindle

M1 = 06

Tool change: load tool in the secondary spindle

Select cutting edge of "DRILL" (main spindle)

Spindle no. 2 = main spindle:

T2 = "DRILL"

Select a tool for the main spindle.

As an alternative, T= "DRILL" could also be specified.

T1 = x;

Select a tool for a secondary spindle

Tool management

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NC programming

7.10 Definitions when programming data

M2 = 06

Tool change

As an alternative, M06 could also be specified.

Select cutting edge of a tool with identifier "DRILL"

7.10.3

Tool transfer from program test

MD20110 $MC_RESET_MODE_MASK, bit 3 can be used to define that the active tool and the tool

offset are imported as follows:

• Bit 3 = 1; from the test program which was last terminated in test mode.

• Bit 3 = 0; from the program which was last terminated before the program test was activated.

Precondition: Bits 0 and 6 must be set in MD20110.

$P_ISTEST

The system variable $P_ISTEST is for checking from the part program whether a program test is

active. The system variable returns the value TRUE when program testing is active.

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7.11 Programming T=location number

7.11

Programming T=location number

The function "Programming T=location number" is only available when tool management is

active. This type of programming is not only suitable for turrets, but for all other types of

magazine.

The programming type for tool selection is set using machine data MD20310

$TC_TOOL_MANAGEMENT_MASK:

• MD20310 $TC_TOOL_MANAGEMENT_MASK, Bit 16=0 (default setting) - Programming via T

= "Identifier".

- T = "x" with x as tool identifier, e.g. "drill"

• MD20310 $TC_TOOL_MANAGEMENT_MASK, Bit 16=1 - Programming via T = "Location

number".

- Tx, with x as location number of the magazine containing the tool used for machining,

e.g. location number 4

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Figure 7-14

Programming of T=location number

Explanation of the illustration:

When the function is active, T1 selects the tool in location number 1 instead of the tool with

identifier "1". The first magazine linked with the tool holder is accessed here. The identifier of the

tool in this location is then determined ("Drill").

The subsequent procedure is as if T="Drill" had been programmed. During the tool change

process it is determined which of the three tools from the "Drills" group shall be loaded first.

The set tool search strategy is taken into consideration:

• When the strategy "Take the first available tool from the group" is applied, T10 from location

3 is loaded ($TC_MAMP2 Bit0 = 0).

• When the strategy "Take the first tool with active status from the group" is applied, T1 is

"loaded" ($TC_MAMP2 bit0 = 1).

In so doing, it is assumed that tool T1 is also the replacement tool with the lowest duplo

number. If this is not the case, then for $TC_MAMP2 bit0 = 1, for a tool change, the tool with

the lowest duplo number is loaded.

The search strategy is set using system variables $TC_MAP10 (current search strategy of the

magazine) or $TC_MAMP2 (search strategy type). As preliminary setting, $TC_MAP10 uses the

values from $TC_MAMP2.

Tool management

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NC programming

7.11 Programming T=location number

T15 on location no. 1 cannot be used, because it is disabled.

No alarm is generated if the programmed location does not contain a tool. The change is output

as usual, with T no.=0. In this way, for example, the turret can be positioned to an empty location.

If more than one magazine is assigned to the tool holder, then the programmed location number

refers to the magazine that is the first magazine defined in the distance table.

If the tools of the tool group are located in different magazines of the tool holder, the search

procedure is the same as with the standard tool management.

Note

With the T=location function, alternatively T= "Drill" can also be programmed.

T=1; tool

T="Drill"; tool with identifier Drill

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7.12 Call multiple turrets with "T=location number"

7.12

Call multiple turrets with "T=location number"

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Figure 7-15

T=location number as tool management function on turning machines

The programming option "T = location number" and several magazines can be used to work in

one channel or in one TO unit.

• The NC address T can be programmed with an address expansion T1 =...

• Tool management then interprets this as the spindle number or as the toolholder number.

• T without address extension then refers to the main spindle.

Tool management

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NC programming

7.13 Programming examples

7.13

Programming examples

Action

Program command

Description

Create tool

DEF INT DUPLO_NO

Create new tool called Drill with duplo

no.= 7. The automatically generated T

DEF INT T_NO

no. is stored in "T_NO".

DUPLO_NO = 7

T_NO=NEWT("DRILL",DUPLO_NO)

T_NO = GETT("DRILL",

Determine the T number of tool "DRILL"

DUPLO_NO)

with duplo no. 7 that has already been

created.

The T No is, however, also assigned here

$TC_TP2[1] = "DRILL" ;

by the programming.

$TC_TP1[1] = DUPLO_NO

Tool data

$TC_DP1[GETT("DRILL",

Write tool type for the 2nd cutting edge

of the tool "Drill"/ DUPLO_NO

read / write

DUPLO_NO), 2] = 210

$TC_DP1[T_NO, 2] = 210

Write tool type for the 2nd cutting edge

of the tool "T number"

Tool

T="DRILL"

If there are several tools with this identi-

fier, then the T no. is returned for the

selecting

or:

first tool possible.

T=GETT("DRILL", DUPLO_NO)

Determines the T number for "DRILL"

with duplo number = DUPLO_NO and

selects it.

Call with T No. e.g. T1,T2,T3,

Delete tool

$TC_TP1[T_NO,0]=0

Tool with T_NO is deleted

Tool "DRILL"

DELT ( "DRILL", DUPLO_NO)

DUPLO_NO is deleted

$TC_TP1[GETT("DRILL"),0]=0

or alternatively:

DELT("DRILL")

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7.14 Overview of the remaining OPI blocks of tool management

7.14

Overview of the remaining OPI blocks of tool management

7.14.1

Magazine data, directory

OPI block TMV

Calculation of line: Magazine number, if a field[

] is present

Calculation of column: n.a.

NC identifier

Designation

OPI variable

Type

None

Number of magazines

numActMags

WORD

Number of the magazine

magVNo[ ]

WORD

Identifier of the magazine

magVIdent[ ]

String

Number of adapters

numActAdapter

WORD

Number of the adapter

adaptVNo

WORD

Adapter type

AdaptVType

WORD

7.14.2

Tool data, directory

OPI block TV

Calculation of line: Sequential no. of the tools, if [ ] present

Calculation of column: n.a.

NC identifier

Designation

OPI variables

Type

None

Duplo number

nrDuplo[ ]

WORD

Number of cutting edges

numCuttEdges[ ]

WORD

Number of tools in TO area

numTools

WORD

Last T number assigned for tool manage-

TnumWZV

WORD

ment

Tool identifier

toolIdent[ ]

String

Current magazine

toolInMag[ ]

WORD

Actual location

toolInPlace[ ]

WORD

T number

toolNo[ ]

WORD

Number of tool groups

numToolsGroups

WORD

Tool management

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NC programming

7.14 Overview of the remaining OPI blocks of tool management

7.14.3

Parameterization, return parameters _N_TMGETT, _N_TSEARC

OPI block TF

Calculation of line: Refer to table

Calculation of column: n.a.

Designation

OPI variables

Calculation of line

Type

Comparison value for PI TSEARCH of variables of the OPI

parDataTD

Parameter index of block TD

WORD

block TD

Comparison value for PI TSEARCH of variables of the OPI

parDataTO

Parameter index of block TO

DOUBLE

block TO

Comparison value for PI TSEARCH of variables of the OPI

parDataToolId

Parameter index of block TD

String

block TD

entTD

Comparison value for PI TSEARCH of variables of the OPI

parDataTS

Parameter index of block TS

DOUBLE

block TS

Comparison value for PI TSEARCH of variables of the OPI

parDataTU

Parameter index of block TU

DOUBLE

block TU

Comparison value for PI TSEARCH of variables of the OPI

parDataTUE

Parameter index of block TUE

DOUBLE

block TUE

Comparison value for PI TSEARCH of variables of the OPI

parDataTUS

Parameter index of block TUS

DOUBLE

block TUS

Mask for search criterion of PI TSEARCH (OPI block TD)

parMasksTD

Parameter index of block TD

WORD

Comparison value for PI TSEARCH of variables of the OPI

parMasksTO

Parameter index of block TO

WORD

block TO

Comparison value for PI TSEARCH of variables of the OPI

parMasksTS

Parameter index of block TS

WORD

block TS

Comparison value for PI TSEARCH of variables of the OPI

parMasksTU

Parameter index of block TU

WORD

block TU

Comparison value for PI TSEARCH of variables of the OPI

parMasksTUE

Parameter index of block TUE

WORD

block TUE

Comparison value for PI TSEARCH of variables of the OPI

parMasksTUS

Parameter index of block TUS

WORD

block TUS

D number of cutting edge used

resultCutting

Number of cutting edges of

WORD

EdgeNrUsed

tool

Number of cutting edges used

resultNrOfCut

WORD

EdgesUsed

Return: found tools

resultNrOfToo

WORD

Return: T numbers of found tools

resultToolNr[

1...

WORD

]

resultNrOfTools

T number of cutting edge used

resultToolNr

Number of cutting edges of

WORD

Used

tool

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7.14 Overview of the remaining OPI blocks of tool management

7.14.4

Working offsets

OPI block AEV

Calculation of line: Cutting edge number if [ ] available

Calculation of column: n.a.

NC identifier

Designation

OPI VAR

Type

None

Number of D numbers in block

numActDEdges

WORD

D numbers

Dno[...]

WORD

Internal T number

toolNo[...]

WORD

Cutting edge number

cuttEdgeNo[...]

WORD

Tool identifier

toolIdent[...]

STRING

Duplo number

duploNo[...]

WORD

Magazine

toolInMag[...]

WORD

Location

toolInPlace[...]

WORD

7.14.5

PI services and language commands for tool management

Overview

FB4 (PI_SERV) or FB7 can be used to start program instance services (PI services) in the NC area.

A program section, which carries out a particular function (e.g. with tool management, search

for empty location in a magazine), is executed in the NC by making a request via the PI service.

PI service

Functions

NC command

MMCSEM

Semaphores for various PI services

DELETO

Delete tool

DELT("Tool", Duplo)

DELECE

Delete tool cutting edge

$TC_DP1[t,d]=0

CREATO

Generate tool

NEWT("Tool", Duplo)

CRTOCE

Create tool specifying cutting edge no.

$TC_DPx[t,D]

$TC_DPCx[t,D]

$TC_DPCSx[t,D]

$TC_MOPx[t,D]

$TC_MOPCx[t,D]

TMCRTO

Create tool

$TC_TPx[t]

TMCRTC (not available in PLC)

Create tool by specifying cutting edge no.

$TC_DPx[t,d]

CREACE

Create cutting edge

$TC_DP[t,d]=value

CRCEDN

Create new cutting edge

$TC_DPx[t,d]

TMFDPL

Empty location search for loading

GETFREELOC(magNo, locNo,

T no., refMag, refLoc,

withReserv)

TMMVTL

Prepare magazine location for loading, unload tool

Tool management

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NC programming

7.14 Overview of the remaining OPI blocks of tool management

PI service

Functions

NC command

TMPCIT

Set incremental value for workpiece counter, decre-

SETPIECE(SpinNo,y)

ment count by y

TMPOSM

Position magazine location or tool

POSM(p,m,ip,im)

TMFPBP

Empty location search acc. to properties

TSEARC

Complex search using search screen forms

User cycle program

TMRASS

Reset active status

TMGETT

Confirm T number for specified tool identifier with du-

GETT("Tool", Duplo)

plo number

Read the preset T number

GETSELT(SpinNo)

CHKDNO (not available in PLC)

Check the uniqueness of D numbers of the tool data of

status=CHKDNO (t1,t2,d)

the TO unit assigned to the executing channel. Param-

TMCHKD (not available in PLC)

eters t1, t2, d are optional.

DZERO (not available in PLC)

Set D numbers for all tools of the TO unit assigned to

DZERO

the channel to "invalid". On the OPI, such D numbers

are displayed with the value 0. The invalid D number is

generated NC-internally by assigning the value "old D

number" + 32000 to the D number.

For the offset number D=d, specify the associated in-

status=GETACTTD (t,d)

ternal T no. = t of the tool. The tool that has the status

"active" and "was in use" is taken from the tool group.

Specify the D no. for tool t and its cutting edge ce

d=GETDNO(t,ce)

Set the D no. of tool t and its cutting edge ce to value d

status=SETDNO (t,ce,d)

Read the active T no. and status

status=GETACTT

(Tno,"Tool")

Delete command for all location-dependent/setup off-

status=DELDL(t,d)

sets of a cutting edge or tool if d is not specified

SETTST (not available in PLC)

Set tool status to "active"

SETTA(Stat,m,vnr)

SETTST (not available in PLC)

Set tool status to "not active"

SETTIAStat,m,vnr)

CHKDM (not available in PLC)

Check uniqueness of D nos. in magazine; m=Magazine

status=CHKDM(m)

Set tool holder no. (h=holder no.)

SETMTH(h)

Set master spindle (s=spindle no.)

SETMS(s)

TRESMO

Tool life / quantity / wear setpoint activation

RESETMON

TMAWCO (not available in PLC)

Set a wear group to active

$TC_MAP9

Location-dependent offsets, coarse

$TC_EPx[t,d]

Technological grinding data

$TC_TPGx[t]

Read the loaded T number

GETEXET

NC command to move tool

MVTOOL

Delete tool holder block

DELTC

Tool deselection/tool change irrespective of tool status

TCA

Delete the location status "reserved for tool in the buf-

DELMLRES

fer"

Delete owner magazine location of the tool

DELMLOWNER

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NC programming

7.14 Overview of the remaining OPI blocks of tool management

NC commands

NC states are read with the following NC commands.

Functions

NC command

Active tool no. T

$P_TOOLNO

Last programmed tool no. (without magazine management)

$P_TOOLP

Active tool cutting edge

$P_TOOL

Active total tool length; n=1-3

$P_TOOLL[n]

Active tool holder

$P_TC

Active angle of a tool holder axis; n=1-2

$P_TCANG[n]

Difference between calculated and used angle of a tool holder axis for

$P_TCDIFF[n]

Hirth gearing of the angle

Active tool radius; n=1-2

$P_TOOLR

Number of cutting edges for tool t; t=T number 1 32000

$P_TOOLND[t]

Tool with T number t exists

$P_TOOLEXIST[t]

Active tool offsets D, n=1...31

$P_AD[n]

Active tool offsets; transformed; n=1-31

$P_ADT[n]

Active additive offset number

$P_DLNO

T number of the tool (numerical)

$C_T

Tool identifier (string)

$C_TS

Bool variable that shows whether a T word is available in $C_T

$C_T_PROG

Parameter for tool name as string

$C_TS_PROG

Address extension of the T word

$C_TE

Programmed D no.

$C_D

Bool variable that shows whether an offset number is available in

$C_D_PROG

$C_D

Programmed additive/setup offset

$C_DL

Bool variable that shows whether an offset number is available in

$C_DL_PROG

$C_DL

Command number, specifies the required operation:

$AC_TC_FCT

1: Move (load/unload, relocate...);

2: Prepare change;

3: Change On;

4: Change ON (turret, without M06);

5: Prepare change and change ON (with M06); -1 At the read instant,

no tool management command is active

Acknowledgement status of PLC FC8/FC6

$AC_TC_STATUS

Tool holder or spindle number onto which the new tool should be

$AC_TC_THNO

loaded

Source magazine number of the new tool

$AC_TC_MFN

Source location number of the new tool

$AC_TC_LFN

Target magazine number of new tool

$AC_TC_MTN

Target location number of the new tool

$AC_TC_LTN

Source magazine number of the old tool (to be removed)

$AC_TC_MFO

Source location number of the old tool (to be removed)

$AC_TC_LFO

Tool management

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NC programming

7.14 Overview of the remaining OPI blocks of tool management

Functions

NC command

Source magazine number of the old tool (to be removed)

$AC_TC_MTO

Target location number of the old tool (to be removed)

$AC_TC_LTO

Returns the number of the actual master spindle

$AC_MSNUM

Returns the number of the master spindle

$P_MSNUM

Returns the number of the master tool holder

$AC_MTHNUM

Trigger variable to output command of the NC (is set for one IPO)

$AC_TC_CMDT

Trigger variable for acknowledgement of the PLC (is set for one IPO)

$AC_TC_ACKT

Counter for the command output

$AC_TC_CMDC

Counter for the acknowledgements

$AC_TC_ACKC

Owner magazine of the new tool

$AC_TC_MMYN

Owner location of the new tool

$AC_TC_LMYN

Returns the number of the master tool holder

$P_MTHNUM

Magazine number of tool t

$A_TOOLMN[t]

Magazine location of tool t

$A_TOOLMLN[t]

Number of the owner magazine

$A_MYMN

Number of the owner magazine location

$A_MYMLN

Number of defined magazines that are assigned to the channel

$P_MAGN

Number of defined magazines, i-th magazine number

$P_MAG[i]

Number of defined adapters that are assigned to the channel

$P_MAGNA

Number of defined adapters, i-th adapter number

$P_MAGA[i]

Number of magazines n that are linked to location n

$P_MAGNDIS[m,n]

Number of the i-th magazine that is linked with location l of the

$P_MAGNDISS[l,i]

buffer magazine

Number of the i-th magazine that is linked with location l of the

$P_MAGDISL[l,i]

loading magazine

Number of defined magazine location type hierarchies

$P_MAGNH

Number of the defined location types in the n-the defined hierarchy

$P_MAGNHLT[n]

m-th location type of hierarchy n

$P_MAGHLT[n,m]

Number of buffers assigned to the spindle numbers, tool holder

$P_MAGNREL[n]

numbers n

m-th buffer number of the n-th spindle no., tool holder no.

$P_MAGREL[n,m]

Number of spindle locations / tool holder locations in the buffer mag-

$P_MAGNS

azine that are assigned to the channel

n-th number of the spindle / tool holder in the buffer

$P_MAGS[n]

Determine the defined D numbers of a tool

$P_TOOLD

Determine existence of a tool

$P_TOOLEXIST

Number of DL offsets of the D offset given by T number T and D

$P_TOOLNDL[t,d]

number D

Number of defined tool groups that are assigned to the channel

$P_TOOLNG

Number of defined tools that are assigned to the channel

$P_TOOLNT

i-th tool number T

$P_TOOLT[i]

The following tool changes are available for all tools, whose param-

$P_USEKT, $TC_TP11

eter $TC_TP11 have set one of the bits of $P_USEKT. The value zero

has the same contents as "all bits are set"

Tool management

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NC programming

7.14 Overview of the remaining OPI blocks of tool management

Functions

NC command

Factor for tool search

$AC_MONMIN

Workpiece count

$A_USEDND

Workpiece count

$A_USEDT

Workpiece count

$A_USEDD

Read factor for tool life monitoring

$A_MONIFACT

Multitool and tool specifications in PI services

The following PI services refer to tools and multitools:

PI service

Meaning

TMFDPL

Empty location search for specified tool or multitool for loading or equipping. The empty location search in

the MT only makes sense for tools that have not been loaded, i.e. as part of the equipping of the MT with

tools.

TMFPBP

Empty location search for specified tool or multitool. This service searches the magazine(s) specified in the

relevant parameters for an empty location, which meets the specified criteria (tool size and location type).

TMMVTL

Load or unload tool or multitool. It is not possible to program tools of a multitool for the move command.

It is also not possible to move a tool in an MT with the command.

TMGETT

T number of the tool with the specified tool identifier / duplo number or the MT number of the multitool with

the specified identifier (multitool: the duplo number is programmed with the parameter value 00000)

TRESMO

Reset monitoring values. If an MT number is programmed, only the tools of the multitool treated.

TMPOSM

Position magazine on the specified magazine location, specified tool or multitool.

The following PI services are available functionally for tools and multitools, but with

different names:

PI service

Meaning

Create

CREATO

Create tool with specified T number

CRTOCE

Create tool with specified T number and D number

TMCRTO

Create tool with specified identifier / duplo number

TMCRTC

Create tool with specified identifier / duplo number and D number

Delete

DELETO

Delete tool with specified T number

TMDLTO

Delete tool with specified identifier / duplo number

Note

If these tool-specific PI services are called with MT-specific names or MT numbers, the respective

PI service is aborted with error status.

Tool management

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NC programming

7.14 Overview of the remaining OPI blocks of tool management

The following PI services are defined functionally only for tools (i.e. there are no similar PI

services for multitools):

PI service

Meaning

CHEKDM

Check the D numbers for uniqueness

CHKDNO

Check whether the tools have unique D numbers

DZERO

Set all D numbers invalid with the "Unique D number" function

CRCEDN

Create new tool cutting edge by specifying the D number

CREACE

Create tool cutting edge

DELECE

Delete tool cutting edge

SETTST

Activate tool from tool group (set tool state "active")

TMRASS

Reset active status

TMAWCO

Set active wear group in a magazine

TMPCIT

Set increment value for workpiece counter

TSEARC

Complex search using search screen forms

The following PI services are defined for adapters:

PI service

Meaning

TMCRAD

Creating adapters with a given type

TMDLAD

Deleting adapters with a given number

Note

During the search, the PI service only considers tools, also those contained in a multitool, i.e. the

PI service does not consider multitools. A "Complex multitool search" PI service is not defined.

If the tool-specific PI services are called with MT-specific names or MT numbers, the PI service is

aborted with error status.

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Description of functions

8.1

Magazines

8.1.1

Magazine configuration

With the magazine configuration, one or more real magazines (an actual magazine) for storing

tools can be grouped together by means of Operate, an NC program or ini files.

All the magazines of one configuration can be operated simultaneously in one channel. Several

magazine configurations can be defined but only one configuration can be active in one channel

at one time.

Magazine and tool data are stored in the NC in the so-called TO area.

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Assignment of magazines to channels

Tool management

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345

Description of functions

8.1 Magazines

Relation between TO unit and magazine configuration

The individual TO ranges are specified by machine data. A TO unit is assigned to each channel

(channel1/TOA1, channel2/TOA2,etc.) as the default setting. Which channel or channels work

on which TO units can be defined in the machine data. Only one magazine configuration can be

active at any one time per TO unit. If several channels are assigned to a TO unit, then the

magazine configuration applies for all assigned channels. A TO unit (TOA unit) is an independent

area of the tool management. It is not linked to other TO units.

Up to 10 independent TO units may be created depending on the number of channels available.

Multiple channels can be assigned to one TO unit. However, one channel cannot be assigned to

multiple TO units. A subset of magazines, buffer locations and loading magazines can be

assigned to one TO unit.

The following figure shows the relationship between TO units and the magazine configuration.

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TO units

8.1.2

Magazine types

Different magazine types are defined so that the various tasks of tool management can be

performed:

Tool management

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Description of functions

8.1 Magazines

Real magazines

Real magazines are the magazines in which the tools are kept. Several real magazines can be

managed in the NC and grouped together into a magazine configuration.

Real magazines are, for example, turrets, chain or box magazines (magazine 1 ... n).

Turret

Chain magazine

Box-type magazine

Internal magazines

All of the positions at which a tool may be located are handled logically in the NC also as a

magazine (and magazine location). There are 2 internal magazines:

• The buffer magazine (magazine 9998)

• The loading magazine (magazine 9999)

8.1.3

Loading magazine

The loading magazine is the 1st internal tool magazine and always has magazine number 9999.

The loading magazine contains loading locations.

These are sub-divided into:

• Loading locations

• Loading stations

Loading points and stations are provided for loading and unloading tools. The allocation of

locations is fixed, all other locations can be assigned freely. Location 1 in the loading magazine

is used for the fixed assignment.

Location 1 is reserved for loading/unloading in all spindles / tool holders, as well as to load and

replace manual tools (see Manual tools (adding tools during machining) (Page 470)). A loading

point is an open entry to the magazine where tools can be manually put into and taken directly

from the magazine.

Tool management

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347

Description of functions

8.1 Magazines

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Loading point

A loading station is viewed as an "external magazine location" which a gripper, for example, can

access to transport a tool to the magazine during loading.

The difference between a loading point and a loading station is as follows:

When loading a tool at a loading/unloading point, the tool is automatically removed from this

location, whereas when unloading to an unload station, it remains at the loading or unloading

location - it must then be removed from there by the application (HMI, NC cycle or PLC).

Definition of a loading magazine

A loading magazine can be defined as follows:

• In SINUMERIK Operate via the tool management (Define loading station (Page 49)).

• Via the magazine description data ($TC_MAP (Page 187)).

8.1.4

Buffer

A buffer involves the 2nd internal magazine. The magazine number is always 9998. The buffer

includes the spindle, tool holder, gripper, loader and transfer location. The locations are

numbered, just like a real magazine, ascending from 1-n. Every location has a location index.

Here, it is assigned as to which is the 1st spindle or the 1st gripper. Any numbering can be used.

However, transparency is improved if the locations of a location type (all spindles, all grippers,...)

are numbered in an ascending sequence. See also Section "Overview of magazine data

(Page 187)".

The NC only makes a differentiation between spindles or tool holders and grippers. Other

"location types" such as loaders or the transfer location are mapped on the gripper.

Tool management

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Description of functions

8.1 Magazines

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Figure 8-4

Buffer

Example: Assigning the locations in the buffer magazine

No.

Name

Type

Index

Assignment to

Distances to

spindles

magazine

Spindle_1

Spindle

Gripper_1

Gripper

Gripper_2

Gripper

Loader_1

Loader

Loader_2

Loader

Transfer_1

Transfer location

Definition of a buffer

A buffer can be defined as follows:

• In SINUMERIK Operate via the tool management (Define buffer locations (Page 48)).

• Via the magazine description data ($TC_MAP (Page 187)).

8.1.5

Box-type and chain magazines

Fundamentals

Chain and box-type magazines do not as a rule have any additional buffer available for

transportation between magazine and spindle. These additional buffers can temporarily contain

tools.

The command is distributed in the PLC using the basic program. In this case, DB72 is used as the

user interface. There is a separate interface area for each spindle in the interface. A new

Tool management

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349

Description of functions

8.1 Magazines

command from the NC is only then entered in the interface once the previous command has

been acknowledged with status values 1 to 7 via FC8/FC6.

1. The programming function T = identifier is implemented in the PLC in DB72. Bit "Prepare tool"

is set in the associated interface.

2. Programming function M06 is also implemented in DB72. In this instance, bit "Change tool"

is set in the activated interface. The bit "Prepare tool" from an earlier T command is not reset

here. If the bit "Prepare tool" shall no longer be set for the M06, then it is the task of the user

program to reset this bit as part of acknowledging the last T command.

3. Programming functions T and M06 in the same block set the "Prepare tool" and "Change tool"

bits simultaneously in the activated DB72 interface.

Exceptional cases which are mapped in the PLC identically to case 3 above are as follows:

• Initiation of a tool change after block search (last accumulated tool change for the active tool)

• Initiation of a tool change for initialization blocks (reset and start mode), if this was set via the

machine data.

Note

Special cases, box-type and chain magazines

In these exceptional cases, the subroutine (macro, cycle) in which M06 is normally

programmed is not executed.

Definition of box-type or chain magazines

Box-type or chain magazines can be defined as follows:

• In SINUMERIK Operate via the tool management (Set up magazine configuration (Page 50)).

• Via the magazine description data ($TC_MAP (Page 187)).

Tool management

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Description of functions

8.1 Magazines

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Magazine 2 = No. 2

Magazine 1 = No. 1

Magazine 9999 = all buffers

Magazine 9998 = all loading magazines

Spindle 1 = magazine 9998 location 1

Gripper 3 = magazine 9998 location 4

Gripper 1 = magazine 9998 location 2

Gripper 4 = magazine 9998 location 5

Gripper 2 = magazine 9998 location 3

Figure 8-6

Machine tool with chain and box-type magazine

The magazine zero point is defined by $TC_MDP2 (with value assignment of 0). The change

position (spindle) is normally assigned on this basis.

8.1.6

Circular magazine

Generally, turret magazines do not have any additional buffers through which tools are

transported from the magazine to the spindle. Turrets are generally used on turning machines,

on which the rotating spindle holds the workpiece and the turret holds the tools used for

machining.

So the tools are not physically carried to the spindle. They are moved into a defined position by

rotation of the turret so that machining can be performed with a further tool. The tool is only

transported to the spindle or holder in the software.

The method by which the tool is changed can be set for the turret in MD22550

$MC_TOOL_CHANGE_MODE. The setting is described in detail in Preparing a tool change via T

command (Page 378).

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Description of functions

8.1 Magazines

The programming command T = identifier initiates the tool change. T = location can be

programmed as an alternative. If T = location, no tool need actually be stored in the location.

The command is distributed in the PLC using the basic program. In this case, DB73 is shown as

the interface for the user (if TOOL_CHANGE_MODE is set to 0). There is a separate interface area

for each turret. The turret numbers are assigned successively in ascending sequence according

to magazine numbers during commissioning. The permissible magazine range is 1 ... maximum

number of real magazines. A new command from the NC is only entered in the interface when

the previous command has been acknowledged via FC7 (alternatively also via FC8/FC6).

① Spindle with workpiece

② Turret 1

③ Turret 2

④ Loading/unloading location

Figure 8-7

Double-slide turning machine with direct loading/unloading point in the turret

Definition of a turret

A loading magazine can be defined as follows:

• In SINUMERIK Operate via the tool management (Set up magazine configuration (Page 50)).

• Via the magazine description data ($TC_MAP (Page 187)).

8.1.7

Other magazine types

In practice, there are other types of magazines in addition to the ones listed above. These are

e.g. disk-type, washer, pick-up, rack, cage magazines (and many more). Such types must be

mapped to the three types of magazines supported by the tool management.

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Description of functions

8.1 Magazines

8.1.8

Wear group

Fundamentals

Locations in a magazine are linked to form an area referred to as the wear group. In this way,

locations of a magazine can be reserved for particular machining operations.

A wear group number is assigned to each of these locations and the magazine is thereby divided

into several different areas. Only tools from one of the areas are then used for a specific

machining operation.

The wear group number for each magazine location is defined via system variable

$TC_MPP5[m,p] (m: Magazine number, p: Location number).

Values from -32000 to +32000 are possible.

Value > 0:

The specified number is assigned to the location (e.g. $TC_MPP5[1,3] = 2 assigns the third

location of magazine 1 to wear group number 2).

Value = 0:

The location is not assigned to a wear group, threfore the magazine locations are generally

included in tool searches.

Values < 0:

The wear group whose number corresponds to the absolute value of this number is disabled

(e.g. $TC_MPP5[1,3] = - -2 disables wear group number 2 of the magazine with number 1).

This applies even if there is only one disabled location in the wear group.

Note

Wear groups are only available for real magazines. The definitions for $TC_MPP5 do not affect the

status of tools.

Up to eight wear groups per magazine are possible.

Activate wear group

System variable $TC_MAP9 defines which wear group (magazine area) is active. To change the

active wear group, the corresponding number is set in this system variable, thereby defining

which wear group will be used to start the machining operation.

The default setting is 0.

The wear group can also be set active internally by a tool change or by the user via NC commands/

OPI.

Disable wear group

If there is no longer any tool that is ready for use at the location of an active wear group, then

the system switches to the next wear group and the old wear group is disabled.

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Description of functions

8.1 Magazines

Machining is continued by activating the next group and searching for a suitable replacement

tool.

The wear group is also disabled if one of the locations has been disabled via system variable

$TC_MPP5 (negative value).

Activate (internally)

Bit 0 of system variable $TC_MAMP3 can be set to determine how internal activation of a wear

group will affect the status of the associated tools.

Value 0:

The tool status is not changed (preset).

Value 1:

When activated, one tool from each included tool group is set to "active". Tools already set earlier

as active are not reset.

Disable (internally)

Bit 1 of system variable $TC_MAMP3 can be set to determine how internal deactivation of a wear

group will affect the status of the associated tools.

Value 0:

The tool status is not changed (preset).

Value 1:

When a wear group is disabled all active tools are reset.

Note

For a tool search in the wear group, see Section "Tool search in wear group (Page 487)".

Enabling or disabling tools from a wear group

Tools can be enabled or disabled in a wear group via the NC language commands SETTA and

SETTIA:

• SETTA - Activate tool from wear group (Page 261)

• SETTIA - Deactivate tool from wear group (Page 263)

8.1.9

Background magazine

Background magazines are not directly supported by the tool management. However, functions

for backg49round magazines can be activated by setting the system variable selectively. System

variable $TC_7 MAMP2, bit 7 can be used to set whether the tool search begins in the magazine

last used for tool replacement (bit 7 = 0) or whether the search is carried out in the order

defined by "Spindle to magazine" (bit 7 = 1).

Generally, this system variable is set when configuring the magazine. A change can be made at

any time via the part program or OPI.

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Description of functions

8.1 Magazines

The assignment of "spindle to magazine" is set via system variable $TC_MDP2[n,m]; the order

corresponds to the order in which this variable is written. This is also pre-assigned by the

magazine configuration.

Example for four magazines and one spindle:

$TC_MAMP2=385 (bits 0, 7 and 8 set).

$TC_MDP2[1,1]=0

$TC_MDP2[2,1]=0

$TC_MDP2[3,1]=0

$TC_MDP2[4,1]=0

... this assigns the first buffer (spindle) to magazines 1 to 4; a tool search would therefore start

in magazine 1, followed by magazine 2, etc. up to magazine 4.

You can modify this search order by setting this system variable as follows:

1. Deleting the assignment

$TC_MDP2[1,0]=9999

$TC_MDP2[2,0]=9999

$TC_MDP2[3,0]=9999

$TC_MDP2[4,0]=9999

2. Re-assigning in a different order

$TC_MDP2[2,1]=0

$TC_MDP2[3,1]=0

$TC_MDP2[4,1]=0

$TC_MDP2[1,1]=0

... resulting in the search order of magazine 2, 3, 4, 1

The trigger criterion for changing the order of assignment can be the information in the change

cycle that the new tool was found in another magazine. This can be read in the program via

$A_TOOLMN[t], whereby "t" is the internal T number of the tool. The new tool is obtained via

GETSELT. You must remember the previous foreground magazine.

8.1.10

Consider adjacent location

Fundamentals

Consider adjacent location is used for oversized tools (see also Tool-related data $TC_TP

(Page 179)). When searching for empty locations (loading, relocating, changing) bits 4 to 11 are

evaluated in the magazine location parameter $TC_MPP4 (half location occupied/reserved). As

this function requires additional memory space, the default setting is 0.

To activate the function, set the following:

$MN_TOOL_MANAGEMENT_MASK, bit 3 = 1

$MC_TOOL_MANAGEMENT_MASK, bit 3 = 1

In addition, for every magazine location that is to be considered, parameter $TC_MPP3 = 1 must

be set.

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Description of functions

8.1 Magazines

Two functions are available when the consider adjacent location is active.

Overlap disabled magazine locations

The function is activated by setting the magazine location parameter $TC_MPP4 bit 13 = 1. If a

location is disabled, it can now be "overlapped" by an oversized tool. This means the consider

adjacent location ignores the disabled state of this magazine location.

Example

Chain magazine, location 12 is disabled (e.g. the tool holder is defective). An oversized tool (size

2/2/1/1) is loaded or is positioned in the spindle. The tool can now be stored at location 11 or 13.

The following can be selected as default setting:

As soon as a location is disabled, "Overlapping active" is automatically set or reset as soon as the

location is enabled.

This setting is made in machine data

$MN_TOOL_DEFAULT_DATA_MASK, bit 4 = 1.

Overlapping magazine edge locations

This function is activated by setting the magazine description parameter $TC_MAP3, bits 8 to 11.

If these bits are set, the following conditions apply:

(Definition: smallest magazine location number is at the top left, the largest magazine location

number is at the bottom right).

Bit 8: Left edge location must not be covered.

Bit 9: Right edge location must not be covered.

Bit 10: Top edge location must not be covered.

Bit 11: Bottom edge location must not be covered.

The default setting for these bits is 0.

Example:

• A box-type magazine used.

• Due to the mechanical conditions, oversized tools can cover the edge at the top and on the

right.

The following must be set:

$TC_MAP3[magazine no.], bit 8 = 1

$TC_MAP3[magazine no.], bit 11 = 1

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Description of functions

8.2 Loading

8.2

8.2.1

Loading sequence

Overview

The "Loading" function generally involves transporting a tool from a loading point (location in

the loading magazine) into a real magazine. An owner location is assigned to the tool during

this. Only then, from the perspective of the NC, is the tool considered to have been loaded.

This means that a tool that was loaded onto the spindle - e.g. via SINUMERIK Operate - is

considered as not having been loaded.

The prerequisite is that magazines and loading points be configured in the tool management

(Page 48).

Assignment of the loading points

The loading point can be assigned via the machine data MD52274 ($MCS_TM_TOOL_LOAD_

STATION). If more than one loading point (Page 347) is defined, the following settings can be

made:

• $MCS_TM_TOOL_LOAD_ STATION = 0; a prompt window in which the loading point is

defined appears in SINUMERIK Operate.

• $MCS_TM_TOOL_LOAD_ STATION = 1; fixed loading point 1, permanently assigned as a

loading point of spindles/tool holders.

• $MCS_TM_TOOL_LOAD_ STATION = 2; fixed loading point 2

Loading points are also defined during SINUMERIK Operate configuration. More detailed

information is available at Define loading location (Page 49).

Example for loading a tool into a real magazine

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Load magazine

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Description of functions

8.2 Loading

Loading sequence

1. The NC issues a "Load" order. The parameters are transferred to interface DB71. There is a

separate interface area in DB71 for each loading point.

2. The magazine moves the selected (empty) magazine location to the loading point

(DB71.DBW58/60).

3. The tool is loaded into the magazine (the tool is manually inserted in the example).

4. The "Load" order is acknowledged via the PLC with FC6/FC8.

Initiate loading via SINUMERIK Operate

The magazine locations for the change point for the spindle/gripper and the loading point are

marked with arrows in the tool magazine.

Loading is initiated in SINUMERIK Operate:

1. A tool is inserted at the end of the tool list as an unloaded tool with "New tool".

2. The "loading" of the tool at the magazine location is initiated via the softkey.

Load tool

Selecting loading point

The individual steps are acknowledged via the user program in the PLC.

Note

SINUMERIK Operate automatically handles the loading. The tool data is completely generated.

The tool is placed at the loading point and tool transport initiated. This sequence does not

change, even if the tool is visually created in the magazine list via the user interface.

Note

If a tool is loaded directly onto the spindle, this does not lead to an offset selection.

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8.2 Loading

8.2.2

Function of the PLC when loading?

Loading sequence

The PLC is notified by the NC during the loading process about the magazine and location

numbers via the "Loading/unloading (DB71)" interface.

The following bytes in DB71 (Page 125) are filled during loading:

• DBB0.1; The interface defines the loading point. Interface 2 corresponds with loading point

2. Interface 1 with loading point 1 is assigned to the spindle.

• DBB(n+0).0; the parameter "n" contains the offset for the loading point. Thus, "34" for

example, for loading point 2.

• DBW(n+24); Number of the target magazine.

• DBW(n+26); Location number of the new tool in the target magazine.

These target addresses are communicated to FC8/FC6 via the following parameters:

• "NewToolMag" contains DB71.DBW(n+24)

• "NewToolLoc" contains DB71.DBW(n+26)

• "Status (Page 161)" conveys whether the loading has been successfully completed:

- Status=10; For loading and unloading, as well as for relocating, the acknowledgement

status = 10 is available. It has the same effect as status =1 (final acknowledgement),

however it does not change the magazine position ($TC_MAP8). For every final

acknowledgement (if the tools were moved) the magazine position is always aligned.

The parameters "OldToolMag", "OldToolLoc" are preset to 0 before loading. The number of the

active interface identifies the loading location.

Example of FC8/FC6 call when loading with FC150 (user program)

The loading process in the PLC goes as follows:

1. A request is sent to the PLC to load the tool. The information is transferred to the PLC in DB71.

Example:

Data in DB71 when loading for the 2nd interface (location 1 in magazine 1 is to be loaded

from loading location 2)

2. The PLC should now move "Location 1" from "Magazine no. 1" (into which the tool must be

loaded) to "Loading location 2" and execute the loading operation.

3. When the tool is physically present in the magazine, FC8 must be called from the user

program and the loading operation acknowledged.

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Description of functions

8.2 Loading

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Load - DB71

In this specific case, loading from location 1 into magazine 1, with the final acknowledgement

(status_1) the magazine position is set to 1 (possibly existing offsets are not taken into

consideration). However, this is not always desirable, e.g. when equipping a turret, as HMI

Operate derives this display from the actual magazine position.

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Description of functions

8.2 Loading

PLC sample programs

The following sample programs (description of DB150 (Page 122)) show the acknowledgement

of loading via interface 2. To this end, the network is programmed in an FC150 user block.

Sample program "Load magazine"

NETWORK TITLE = Acknowledgement loading interface 2

U E 86.0; //acknowledgement is done here via the terminal E 86.0

U DB71.DBX 0.1; //Interface 2 active

U DB71.DBX 34.0; //Loading active

FP M 150.0;

SPBN M100;

L 1;

T DB150.DBB 0; //DB71

L 2;

T DB150.DBB 1; //Interface 2

L 0;

L DB71.DBW 58;

T DB150.DBW 1; //Target magazine for loading

L DB71.DBW 60;

T DB150.DBW 4; //Target location for loading

L 0;

T DB150.DBW 6;

T DB150.DBW 8;

L 1;

T DB150.DBW 10; //Status 1

L -1;

T DB150.DBW 12;

S DB150.DBX 16.0; //Start FC6

M100: NOP 0;

Example of a transfer with FC6

NETWORK TITLE =Tool management status transfer

CALL FC 6 (//Tool management transfer block

Start

:= DB150.DBX 16.0,//Start

TaskID

:= DB150.DBB 0,

TaskIDNo

:= DB150.DBB 1,

NewToolMag

:= DB150.DBW 1,//Pos new tool

NewToolLoc

:= DB150.DBW 1,

OldToolMag

:= DB150.DBW 0,//Pos old tool

OldToolLoc

:= DB150.DBW 0,

Status

:= DB150.DBW 10,//Status

MultitoolLoc

:= DB150.DBW 12,

Ready

:= DB150.DBX 16.1,

Error

:= DB150.DBW 14);

U DB150.DBX 16.1; //Prompt ready

R DB150.DBX 16.0; //Reset start

L DB150.DBW 14; //Error information

L 0;

<>I ; //Evaluate error

R DB150.DBX 16.0; //Reset start

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Description of functions

8.2 Loading

Problems during loading

A tool cannot be loaded. Check the following:

• Is the location type correct?

• Is a suitable empty location available?

• Has the number of tools enabled in the NC (MD18082) been reached?

Alarms on the operator panel:

• No suitable empty location available

• The "Create tools" command cannot be output to NC.

See also

FC8: TM_TRANS - transfer block for tool management (Page 157)

8.3.3

Unloading by deleting the T number from the magazine location

By directly writing to parameter $TC_MPP6[magazine No.,location No.] = 0, a tool can be

removed from this magazine location (whether it is a real magazine, buffer or loading

magazine). All reservations of the removed tool are automatically deleted.

This does not involve an associated command output to the PLC.

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Description of functions

8.4 Tool change box-type, chain, circular magazines

8.4

Tool change box-type, chain, circular magazines

8.4.1

Overview

Tool change - Overview

During a tool change, a tool is changed from a real magazine into the spindle or the turret is

rotated to the correct position. The used tool is changed from the spindle into a real magazine.

The tool can be changed using an intermediate magazine such as a gripper. Other options are,

for example, changing the tool using turrets (rotating the turret) and a manual tool change

(manual tool).

The following example shows a tool change in a chain magazine with a double gripper.

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Tool change with double gripper

All of the intermediate steps during a tool change must be programmed in the user program of

the PLC and acknowledged via the transfer blocks FC6, FC7 or FC8. In the example above, this

means:

• The tool is positioned at the change point of the magazine.

•

① The tool is loaded from the change point of magazine 1 into gripper 1.

•

① The tool is loaded from spindle 1 into gripper 2.

•

② The tool is loaded from gripper 1 into spindle 1.

•

② The tool is loaded from gripper 2 to the change point in magazine 1.

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Description of functions

8.4 Tool change box-type, chain, circular magazines

8.4.2

General tool change sequence

Tool change sequence

The prompt for changing the tool is issued by the part program via T command or M command.

1. The tool-management function in NC searches in accordance with the tool search strategy

for a tool suitable for use (preparation) and, at the same time, searches for an empty location

for the tool to be exchanged.

2. The determined data is provided in DB72/73. The user program must react by making a new

tool available.

3. If machine data MD22550 $MC_TOOL_CHANGE_MODE is set to 1, with the "M06 command"

in the part program, the PLC executes the tool change and signals the end of the change

operation.

If the machine data is set to 0, then by programming T, the tool is loaded. In both cases, the

PLC has the option of applying its own tool change strategy. It can choose its own empty

location for storing the old tool.

Note

The tool change is an NC-internal operation that is executed as an interaction with the PLC.

The HMI only has the task of displaying data and facilitating data input.

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Description of functions

8.4 Tool change box-type, chain, circular magazines

Tool change sequence

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Preparing and changing a tool

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Description of functions

8.4 Tool change box-type, chain, circular magazines

Spindle and tool holder

Tool management can also be used for machines that have no spindle (e.g. punch presses or

turrets). In this case the term "spindle" is replaced by "tool holder";

This is defined in MD20124 $MC_TOOL_MANAGEMENT_TOOLHOLDER. If MD > 0, then the

spindle numbers $TC_MPP5 are interpreted as tool holder numbers.

Fixed location coding

If fixed location coding is selected for a tool, the tool will always be returned to the same location

when it is replaced.

Variable location coding

Tools defined with variable location coding can be returned to any location for the appropriate

tool size and location type in the magazine.

Automatic tool return to real magazine

1. An automatic tool return is initiated by the TM only if the tool is transported via several

stations (status 105) after a T preparation command from the PLC and the T preparation

command is finally acknowledged positively with status 1.

The return of a preselected tool from the buffer can be suppressed by setting MD20310:

TOOL_MANAGEMENT_MASK, bit 15 = 1.

2. If a tool change is interrupted because the control is switched off but the tool is already

located in a buffer location (gripper), the next tool change must either return the tool in the

buffer to the spindle or to the real magazine.

3. If several tools are located in the buffer the spindle tool is considered first. If there is no tool

on the spindle, the order for return is in accordance with system variable $TC_MLSR.

Example for the time sequence of a tool change

The following example shows a typical cut-to-cut sequence of operations for a tool change with

a tool changer and a fixed absolute tool change point on a milling machine.

Machining program

N970 G0 X = Y = Z

;Retraction from the contour

N980 T = "MILLING CUTTER"

;Tool preselection

N990 T_CHANGE

;Subprogram call without parameters

N1000 G90 G0 X= Y= Z= M3 S1000

;Continue machining

Subprogram for the tool change

PROC W_WECHSEL

N10 SPOSA= S0

;Spindle positioning

N20 G75 FP=2 X1=0 Y1=0 Z1=0;

;Approach tool change point

N30 M06

;Change tool

N40 M17

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Description of functions

8.4 Tool change box-type, chain, circular magazines

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Chronological sequence of tool change

t1 axes stationary, spindle rotating, start of the tool change cycle in N10

t2 Traverse axis with G75 in N20 to tool change point.

t3 Spindle reaches programmed position from block N10.

t4 Axes reach exact stop coarse from N20; N30 now starts.

M06 removes the previous tool from the spindle and loads and clamps the new tool.

t5 Tool changer swivels back to original position.

Then, in N1000 of the calling main program,

• the new tool offset can be selected,

• the axes returned to the contour.

• spindle accelerated.

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Description of functions

8.4 Tool change box-type, chain, circular magazines

8.4.3

Preparing a tool change via T command

Fundamentals

A tool change is prepared via the part program with the "T" command and then executed via the

command "M06".

The tool change type is set using machine data 22550 $MC_TOOL_CHANGE_MODE.

• $MC_TOOL_CHANGE_MODE = 0

No separate T preparation, change with the T command.

• $MC_TOOL_CHANGE_MODE = 1

Separate T preparation, the change is performed with M06 or the M function, which is set in

machine data $MC_TOOL_CHANGE_M_CODE.

This setting setting is independent of the magazine type. This means that also for a turret, T and

M06 can be programmed just the same as for a chain magazine only with a T command.

$MC_TOOL_CHANGE_MODE=0

T="Tool identifier"

;Tool preparation and tool change with an NC command (=

within an NC block)

;NC sends a command to the PLC

If an error is detected during tool preparation, then machining is stopped when the block T =

identifier is read-in.

After correction and NC Start, the block with T = identifier is interpreted again and program

processing is continued.

$MC_TOOL_CHANGE_MODE=1

• Within an NC block

T="Tool identifier" M06

;Tool preparation and tool change from this programming

results in a command to the PLC

Program tool preparation and tool change in one block (T= "Tool identifier" M06), corresponds

to setting TOOL_CHANGE_MODE = 0.

• Distributed over two NC blocks

T="Tool identifier"

;Tool preparation

;NC sends a command to the PLC

M06

;Tool change (the number of the M code can be set)

;NC sends a command to the PLC

Tool preparation and tool change are typically programmed in different blocks. Two commands

are transferred to the PLC.

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Description of functions

8.4 Tool change box-type, chain, circular magazines

8.4.4

Execution of the tool change

Programming the tool change

A tool change is prepared via the part program with the "T" command and then executed via the

command "M06".

The change is initiated with M06.

Change in tool "MILLER1"

TEST_PROGRAM.MPF

N10

N20

N30 T="MILLER1"

//Prepare tool change

N40

N50

N60 M06

N70

N80

N90 M30 end of program

An alarm is triggered if an error occurs in T="tool identifier". If the MD22562

TOOL_CHANGE_ERROR_MODE is set accordingly, the alarm is delayed until the associated tool

change command M06 is interpreted in the program sequence. Only then is the alarm output.

The operator can make corrections in this block.

Note

Offset selection or deselection is automatically made with the tool change command. In so

doing, machine data MD20270 CUTTING_EDGE_DEFAULT is evaluated.

If the T/M function of the tool change is programmed with address extension, the address

extension specifies the spindle number for which the tool change is to take place:

Example: T3 = "Miller" M3 = 6

The tool with the "Miller" identifier is loaded into spindle 3.

Empty spindle

Program commands T0 and M06 remove the tool from the spindle and return it to the magazine.

The spindle is then empty.

Possible problems when programming T/M06

$MC_TOOL_CHANGE_MODE=0; tool change with T address

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Description of functions

8.4 Tool change box-type, chain, circular magazines

The part program is executed through to the block T = "identifier". The following problems can

occur and are handled as follows:

• The tool data record is in the NC but not assigned to a magazine location. The tool must be

reloaded mechanically, if necessary, e.g. directly onto the spindle. The assignment of the tool

to the magazine location/the spindle takes place, e.g. with the function "Overstore";

$TC_MPP6[m,p] = T no., or by the HMI operation "Load (onto spindle)".

• The tool data record is not in the NC: Create data record, e.g. through HMI operation, in the

NC.

• Programming error in part program: Correct NC block with error in the part program.

• Alarm 22067:

The desired tool change is not possible. The specified tool group does not contain a "ready to

use" replacement tool which could be loaded. The tool monitoring function may have set all

potentially suitable tools to the "disabled" status.

The Start pushbutton is pressed once the operation has been completed. The NC block T="tool

identifier" is interpreted again and program processing is continued provided operator

intervention was correct. If not, the alarm will be generated again.

8.4.5

Tool change for chain and box-type magazines

8.4.5.1

PLC function during preparation (chain, box type)

Spindle/buffer DB72

The data block DB72 (Page 130) is responsible for changing tools in the spindle. This data block

also prepares the tool change. This data block has an interface for every spindle.

User data is available at each interface (sequence in accordance with the spindle number) as for

the loading and unloading points. Data are additionally available for the new tool to be loaded

at change. This data includes, for example, location type, sizes, tool status and the T number

internally assigned in the NC.

The buffer address of the spindle is contained in DB72.DBW(n+16) and DBW(n+18) as the target

for the new tool. This position is communicated as the target position of the new tool in

parameters "NewToolMag" and "NewToolLoc" when the tool change has been successfully

completed. The target position of the old tool (DB72.DBW(n+24) and DBW(n+26)) is transferred

to FC8/FC6 in parameters "OldToolMag, "OldToolLoc" together with parameter "Status" = 1 after

the change tool command has been executed.

Tool management

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Description of functions

8.4 Tool change box-type, chain, circular magazines

Description of tool change operation in spindle

The tool in location 1, magazine 1 is to be loaded to the spindle (magazine no. 9998, location

1) and the tool in the spindle is to be returned to magazine 1 location 8.

*ULSSHU

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SRVLWLRQ IRU VSLQGOH

Spindle 1 = magazine 9998 location 1

Gripper 1 = magazine 9998 location 2

Gripper 2 = magazine 9998 location 3

Figure 8-19

Tool change in the spindle

The tool change in the spindle is split into two steps (for TOOL_CHANGE_MODE=1):

1. Prepare change:

Search for new tool and move to the change position

2. Execute change:

New tool into the spindle and old tool into the magazine at the correct location

1. Prepare change

Bit 2 is set in DB72.DBB n+0. In preparing for the change, the current positions of the tools are

communicated to FC8/FC6 in the associated parameters once the preparation step has been

completed. In this case, "Status (Page 161)" = 1 is parameterized for FC8. This means that the "old

tool" is still in the spindle and that the "new tool" is either still in the source magazine at the same

location or has been placed in a buffer.

The following information is passed to FC8/FC6:

• The new tool is in the change position, but is still located in magazine (NewToolMag = 1 and

NewToolLoc = 1).

• The old tool is still in the spindle (OldToolMag = 9998 and OldToolLoc = 1).

Tool management

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381

Description of functions

8.4 Tool change box-type, chain, circular magazines

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Figure 8-20

DB72 during preparation of the tool change

Tool management

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Description of functions

8.4 Tool change box-type, chain, circular magazines

PLC sample program

The following sample programs (description of DB150 (Page 122)) show the acknowledgement

of the preparation (positioning at the change point) via interface 1. To this end, the network is

programmed in an FC150 user block.

Sample program "Prepare magazine change"

NETWORK

TITLE =Prepare acknowledgement of change

86.0;

DB72.DBX

0.0; //Interface 1 active

DB72.DBX

4.1;

DB72.DBX

4.2; //Preparation active

151.0;

SPBN

M180;

DB150.DBB 0; //DB72

DB150.DBB 1; //Interface 1

DB72.DBW

24;

DB150.DBW

2; //Source magazine for preparation

DB72.DBW

26;

DB150.DBW

4; //Source location for preparation

DB72.DBW

28;

W#16#0;

SPN

M182; //Tool in spindle? Yes->

DB150.DBW 6;

DB150.DBW 8;

SPA

M181;

M182: L

DB72.DBW 20;

DB150.DBW 6; //Target magazine for preparation

DB72.DBW 22;

DB150.DBW 8; //Target location for preparation

M181: L

DB150.DBW 10; //Status 1

-1;

DB150.DBW 12;

DB150.DBX 16.0; //Start FC6

M180: NOP

8.4.5.2

PLC function during tool change (chain, box type)

Perform change

If the preparation command has been correctly acknowledged with status = 1, the "Change" bit

DB72.DBB n+0 bit 1 is set with the M06 command from the part program. The free parameters

are also transferred again. All other values remain unaffected by the "Change tool" operation.

Two tools are involved in the tool change procedure. The old tool is in the spindle and the new

tool is in the magazine. The tool transport is executed in this example with gripper 1 and gripper

2. Any change in the positions of the tools must be communicated to the tool management with

FC8/FC6. FC8/FC6 must be called twice for this purpose.

FC8/FC6 call with status 105 change in progress

Tool management

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383

Description of functions

8.4 Tool change box-type, chain, circular magazines

The tool with the dual gripper is withdrawn from the magazine and the spindle. The old tool is

now in gripper 2 at location no. 3 and the new tool in gripper 1 in location no. 2. This results in

the following FC8/FC6 call:

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Figure 8-21

Tool change DB72 and FC6

Note

The operator uses FC8/FC6 to notify the tool management of the new positions of the

exchanged tools.

Tool management knows which is the new (called) tool and which is the old (spindle) tool.

The current positions are also known to the tool management. If these positions change, the tool

management is only informed about this through FC8/FC6.

Note

If T preparation and change signals are simultaneously present, then the tool call and the change

command (T and M) are programmed in one block. When calling FC8/FC6, in such a case, only

the change has to be acknowledged and not the selection.

FC8/FC6 call with status 1 tool change complete

While the gripper is moving the tools, the PLC can read the magazine location for the old tool

(from the spindle) from DB72.DBW (n+24) and (n+26) and move the magazine to the change

Tool management

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Description of functions

8.4 Tool change box-type, chain, circular magazines

position. This position is location 8 in magazine 1 in this example. The tool change can now be

mechanically ended by "inserting" the tools. Tool management shall be informed of this change

in tool positions by a FC8/FC6 call with status = 1. The new tool is placed in the spindle of

magazine No. 9998, location No. 1 and the old tool in magazine No. 1 at location 8.

Interim acknowledgement of tool change

The following sample program (definition of DB150 (Page 122)) shows the acknowledgement

of the tool change via interface 1. To this end, the network is programmed in an FC150 user

block.

NETWORK

TITLE

=Interim acknowledgement M1 -> Gr1,Sp -> Gr2

86.2;

//Acknowledgement via terminal 86.2

DB72.DBX

0.0; //Interface 1 active

DB72.DBX

4.1; //Change active

DB72.DBX

4.2;

152.0;

SPBN

M200;

DB150.DBB

0; //DB72L 1;

DB150.DBB

1; //Interface 1

DB72.DBW

24;

W#16#0;

SPN

M204;

//T0? No->

DB150.DBW

SPA

M203;

M204:

9998;

DB150.DBW

2; //Source magazine of new tool 2;

DB150.DBW

4; //Source location of new tool

M203:

L DB72.DBW

28;

W#16#0;

SPN

M202; //Tool in spindle? Yes->

DB150.DBW

SPA

M201;

M202:

9998;

DB150.DBW

6; //Target magazine for old tool

DB150.DBW

8; //Target location for old tool

M201:

105;

DB150.DBW

10; //Status 105

-1;

DB150.DBW

12;

SET ;

DB150.DBX

16.0; //Start FC6

M200:

NOP

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Description of functions

8.4 Tool change box-type, chain, circular magazines

8.4.5.3

PLC sample programs tool change

Tool change via intermediate memory

If the dual gripper is to place the spindle tool in the magazine location of the new tool, the user

must ensure that the magazine location is of the same size and location type as the spindle tool.

Here too, a 1:1 exchange is supported through appropriate setting of the search strategy by the

tool management; in this case, the NC checks the location type, size, adjacent location

allocation,...

If this is the case, the transfer can be performed simultaneously (on the dual gripper in the

spindle and in the magazine location at the change position).

FC8/FC6 must be parameterized as follows:

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Figure 8-22

Acknowledgement tool change FC6

Tool management

386

Function Manual, 10/2020, 6FC5397-1HP40-0BA1

Description of functions

8.4 Tool change box-type, chain, circular magazines

Interim acknowledgement of tool change

The following sample programs (definition of DB150 (Page 122)) show the acknowledgement

of the tool change via interface 1. To this end, the network is programmed in an FC150 user

block.

NETWORK

TITLE

=Interim acknowledgement Gr1 -> Sp, Gr2 -> M1

E 86.3;

DB72.DBX

0.0; //Interface 1 active

DB72.DBX

4.1; //Change active

DB72.DBX

4.2;

152.1;

SPBN

M210;

DB150.DBB

0; //DB72

DB150.DBB

1; //Interface 1

DB72.DBW

24;

W#16#0;

SPN

M214; //T0? No->

DB150.DBW

SPA

M213;

M214:

DB72.DBW

20;

DB150.DBW

2; //Source magazine of new tool

DB72.DBW

22;

DB150.DBW

4; //Source location of new tool

M213:

DB72.DBW

28;

W#16#0;

SPN

M212; //Tool in spindle? Yes->

DB150.DBW

SPA

M211;

M212:

DB72.DBW

28;

DB150.DBW

6; //Target magazine for old tool

DB72.DBW

30;

DB150.DBW

8; /Target location for old tool

M211:

105;

DB150.DBW

10; //Status 105

-1;

DB150.DBW

12;

SET ;

DB150.DBX

16.0; //Start FC6

M210:

NOP 0;

Tool management

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387

Description of functions

8.4 Tool change box-type, chain, circular magazines

Carry out acknowledgement of change

NETWORK

TITLE

=Carry

out acknowledgement of change

86.4;

DB72.DBX

0.0; //Interface 1 active

DB72.DBX

4.1; //Change active

DB72.DBX

4.2;

151.1;

SPBN

M190;

DB150.DBB

0; //DB72

DB150.DBB

1; //Interface 1

DB72.DBW

24;

W#16#0;

SPN

M194; //T0? No->

DB150.DBW

SPA

M193;

M194:

DB72.DBW

20;

DB150.DBW

2; //Source magazine of new tool

DB72.DBW

22;

DB150.DBW

4; //Source location of new tool

M193:

DB72.DBW

28;

DB150.DBW

6; //Target magazine for old tool

DB72.DBW

30;

DB150.DBW

8; //Target location for old tool

DB150.DBW

10; //Status 1

DB72.DBX

5.7;

SPB

M192;

-1;

DB150.DBW

12;

SPA

M191;

M192:

DB1072.DBW 10;

DB150.DBW

12; //Multitool location

M191:

SET ;

DB150.DBX

16.0; //Start FC6

M190:

NOP 0;

8.4.5.4

Example structure of the PLC program for a tool change

PLC example of an acknowledgement with FC6

Individual steps for a tool change via a double gripper.

NETWORK TITLE =Interim acknowledgement M1 -> Gr1,Sp -> Gr2

Tool management

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Description of functions

8.4 Tool change box-type, chain, circular magazines

NETWORK TITLE =Interim acknowledgement Gr1 -> Sp,Gr2 -> Mag

NETWORK TITLE =Carry out acknowledgement of change

Programming the transfer

The following example shows the programming of the FC6 via a data block DB150 (definition

of DB150 (Page 122)). To this end, the network is programmed in an FC150 user block.

NETWORK

TITLE =Tool management status transfer

CALL FC 6 (//Tool management transfer block

Start

:= DB150.DBX 16.0,//Start

TaskID

:= DB150.DBB 0,

TaskIDNo

:= DB150.DBB 1,

NewToolMag

:= DB150.DBW 2,//Pos new tool

NewToolLoc

:= DB150.DBW 4,

OldToolMag

:= DB150.DBW 6,//Pos old tool

OldToolLoc

:= DB150.DBW 8,

Status

:= DB150.DBW 10,//Status

MultitoolLoc := DB150.DBW 12,

Ready

:= DB150.DBX 16.1,

Error

:= DB150.DBW 14);

U DB150.DBX

16.1; //Prompt ready

R DB150.DBX

16.0; //Reset start

L DB150.DBW

14; //Error information

L 0;

<>I ; //Evaluate error

R DB150.DBX

16.0; //Reset start

Tool management

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Description of functions

8.4 Tool change box-type, chain, circular magazines

8.4.6

Tool change with turret

Turret DB73

DB73 is responsible for "changing" tools in the turret. During this, the turret is rotated to the

point so that the desired tool is in the working position. This data block has an interface for every

turret. The turrets are numbered using ascending magazine numbers. User data are available at

each interface as for the loading and unloading point. Data are additionally available for the new

tool to be loaded at change. This data includes location type, sizes, tool status and the T number

internally assigned in the NC.

Figure 8-23

Tool change turret

Following completion of the tool-change operation, loading the new tool shall be

acknowledged by FC7. To this end, the parameter "ChgdRevNo" receives the turret number of

the new tool that has been inserted.

FC 7 parameters

Values

Comment

Start

Starts task

ChgdRevNo

1st turret

Ready

Feedback from FC8/FC6

Error

Feedback from FC8/FC6

Tool management

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Description of functions

8.4 Tool change box-type, chain, circular magazines

DB73 for tool change with standard acknowledgement

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Figure 8-24

Tool change at a turret

Alternatively to the acknowledgement via FC7, the standard acknowledgement of DB73 can also

be used.

Sample program acknowledgment via DB73"

NETWORK TITLE =Acknowledgement of change with T no.

E 86.0;

DB73.DBX

0.0; //Interface 1 active

M 150.0;

SPBN

M200.1;

DB73.DBX

0; //Acknowledgement Interface 1

8.4.7

Selecting a tool and a cutting edge

Precondition

Note

The T number and the M function are no longer transferred to the PLC as an auxiliary function

if tool management is activated.

Numbers are also valid tool names, e.g. "3" instead of T = "3" can be programmed more simply

than T3.

There must be a tool with the T number as the identifier available when working with the T

number.

Example: If you want to call a tool using T3, the tool must have the name "3". A tool CANNOT be

called with the internal T number managed by NC only.

Tool management

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SINUMERIK 840D sl. Service - Functions. Manual (2018-2020) - page 86