Content      ..     37      38      39      40     ..

SINUMERIK 840D sl. Service - Functions. Manual (2018-2020) - page 39

M5: Measurement

9.5 Workpiece and tool measurement

The following output variables are written for measurement type 2:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translation

$AC_MEAS_RESULTS[0]

Position of the measured edge

Measurement type 3: Measurement of a Z edge

=

<

=

=

;

Figure 9-3

Measurement of a Z edge

The values of the following system variables are evaluated for measurement type 3:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for all channel axes

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of the Z edge

$AC_MEAS_DIR_APPROACH

= 4

+ Z

= 5

- Z

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

Tool radius is only included in the calculation in G18 and G19.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_TYPE

= 3

Measurement type 3: Measurement of a Z edge

^*) Optional

The following output variables are written for measurement type 3:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translation

$AC_MEAS_RESULTS[0]

Position of the measured edge

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

555

M5: Measurement

9.5 Workpiece and tool measurement

<

<

3

3

3

́

&

3

3

3

3

3

́

˞

˞

&

;

;

<

<

&

́

3

3

3

3

˞

3

&

˞

́

3

3

3

;

;

Figure 9-4

Measurement of a corner (C1, C2, C3 or C4)

The values of the following system variables are evaluated for measurement types 4 to 7:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2 (not relevant for $AC_MEAS_WP_SETAN-

GLE)

$AA_MEAS_POINT3[<Axis>]

Measuring point 3

$AA_MEAS_POINT4[<Axis>]

Measuring point 4 (not relevant for $AC_MEAS_COR-

NER_SETANGLE)

$AA_MEAS_WP_SETANGLE *⁾

Set workpiece position angle

$AA_MEAS_CORNER_SETANGLE *⁾

Set angle of intersection

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of the corner

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

Extended Functions

558

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

Input variable

Meaning

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_INPUT[0] *⁾

= 0

Measurement for outer corner

= 1

Measurement for inner corner

The following applies unless otherwise specified: Measure-

ment for the outer corner

$AC_MEAS_TYPE

= 4

Measurement type 4: Measurement of a C1 corner

= 5

Measurement type 5: Measurement of a C2 corner

= 6

Measurement type 6: Measurement of a C3 corner

= 7

Measurement type 7: Measurement of a C4 corner

^*) Optional

The following output variables are written for measurement types 4 to 7:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translation and rotation

$AC_MEAS_WP_ANGLE

Calculated workpiece position angle

$AC_MEAS_CORNER_ANGLE

Calculated angle of intersection

$AC_MEAS_RESULTS[0]

Abscissa of the calculated corner point

$AC_MEAS_RESULTS[1]

Ordinate of the calculated corner point

$AC_MEAS_RESULTS[2]

Applicate of the calculated corner point

Example

Measurement type 4: Measurement of a C1 corner

Corner with three measuring points (P1, P3 and P4) and known angle of intersection ϕ (90°)

and unknown workpiece position angle α.

Program code

Comment

DEF INT RETVAL

DEF FRAME TMP

$TC_DP1[1,1]=120

; Type

$TC_DP2[1,1]=20

; 0

$TC_DP3[1,1]=10

; (Z) length compensation vector

$TC_DP4[1,1]=0

; (Y)

$TC_DP5[1,1]=0

; (X)

$TC_DP6[1,1]=2

; Radius

T1 D1

G0 X0 Y0 Z0 F10000

G54

$P_CHBFRAME[0]=CROT(Z,45)

$P_IFRAME[x,tr]= -SIN(45)

$P_IFRAME[y,tr]= -SIN(45)

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

559

M5: Measurement

9.5 Workpiece and tool measurement

Program code

Comment

G1 X10

; Traverse the rectangle.

Y10

X0

Y0

M30

9.5.2.3

Measurement type 8: Measurement of a hole

Function

Three measuring points are needed to determine the center point and diameter. The three

points must all be different. When four points are specified, the circle is adjusted in accordance

with the least square method. The circle is determined so that the sum of the distance squares

of the resulting points to the circle is minimal. The quality of the adjustment can be read.

*

*

*

\

[

]

'

'

'

[

]

\

Figure 9-5

Measurement of a hole

The values of the following system variables are evaluated for measurement type 8:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2

$AA_MEAS_POINT3[<Axis>]

Measuring point 3

$AA_MEAS_POINT4[<Axis>] *⁾

When specified, the center is determined from four points.

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of the hole center.

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

561

M5: Measurement

9.5 Workpiece and tool measurement

Input variable

Meaning

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_TYPE

= 8

Measurement type 8: Measurement of a hole

^*) Optional

The following output variables are written for measurement type 8:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translation

$AC_MEAS_DIAMETER

Diameter of hole

$AC_MEAS_RESULTS[0]

Abscissa of the calculated center point

$AC_MEAS_RESULTS[1]

Ordinate of the calculated center point

$AC_MEAS_RESULTS[2]

Applicate of the calculated center point

$AC_MEAS_RESULTS[3]

Quality of the circle adjustment: Sum of the distance squares

Example

Program code

Comment

DEF INT RETVAL

DEF FRAME TMP

$TC_DP1[1,1]=120

; Type

$TC_DP2[1,1]=20

; 0

$TC_DP3[1,1]=10

; (Z) length compensation vector

$TC_DP4[1,1]=0

; (Y)

$TC_DP5[1,1]=0

; (X)

$TC_DP6[1,1]=2

; Radius

T1 D1

G0 X0 Y0 Z0 F10000

G54

; Measure hole

$AC_MEAS_VALID=0

; Set all input values to invalid.

G1 X-3 Y0

; 1. Approach measuring point.

$AA_MEAS_POINT1[X]=$AA_IW[X]

$AA_MEAS_POINT1[Y]=$AA_IW[Y]

$AA_MEAS_POINT1[Z]=$AA_IW[Z]

G1 X0 Y3

; 2. Approach measuring point.

$AA_MEAS_POINT2[X]=$AA_IW[X]

$AA_MEAS_POINT2[Y]=$AA_IW[Y]

$AA_MEAS_POINT2[Z]=$AA_IW[Z]

Extended Functions

562

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

9.5.2.4

Measurement type 9: Measurement of a shaft

Function

Three measuring points are needed to determine the center point and diameter. The three

points must all be different. When four points are specified, the circle is adjusted in accordance

with the least square method. The circle is determined so that the sum of the distance squares

of the resulting points to the circle is minimal. The quality of the adjustment can be read.

*

*

*

\

[

]

'

'

'

[

]

\

Figure 9-6

Measurement of a shaft

The values of the following system variables are evaluated for measurement type 9:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2

$AA_MEAS_POINT3[<Axis>]

Measuring point 3

$AA_MEAS_POINT4[<Axis>] *⁾

When specified, the center is determined from four points.

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of the shaft center point.

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_TYPE

= 9

Measurement type 9: Measurement of a shaft

^*) Optional

The following output variables are written for measurement type 9:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translation

$AC_MEAS_DIAMETER

Diameter of hole

Extended Functions

564

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

Output variable

Meaning

$AC_MEAS_RESULTS[0]

Abscissa of the calculated center point

$AC_MEAS_RESULTS[1]

Ordinate of the calculated center point

$AC_MEAS_RESULTS[2]

Applicate of the calculated center point

$AC_MEAS_RESULTS[3]

Quality of the circle adjustment: Sum of the distance squares

9.5.2.5

Measurement type 12: Measurement of a groove

Function

A groove is measured by approaching the two outside corners or inner edges. The groove

center can be set to a set position. The component of the approach direction determines the

groove position.

\

\

\

[

[

\

\

[

[

[

Figure 9-7

Measurement of a groove

The values of the following system variables are evaluated for measurement type 12:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of the groove center

$AC_MEAS_DIR_APPROACH

Direction of approach to the workpiece

= 0

+ X

= 1

- X

= 2

+ Y

= 3

- Y

= 4

+ Z

= 5

- Z

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

565

M5: Measurement

9.5 Workpiece and tool measurement

Input variable

Meaning

$AC_MEAS_INPUT[0] *⁾

Approach direction for 2nd measuring point for a recess

measurement. Must have the same coordinate as the ap-

proach direction of the 1st measuring point.

$AC_MEAS_TYPE

= 12

Measurement type 12: Measurement of a groove

^*) Optional

The following output variables are written for measurement type 12:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translation

$AC_MEAS_RESULTS[0]

Position of the calculated groove center (X0, Y0 or Z0)

$AC_MEAS_RESULTS[1]

Groove width in approach direction

Example

Groove measurement with approach direction in X.

Program code

Comment

DEF INT RETVAL

DEF FRAME TMP

$TC_DP1[1,1]=120

; Type

$TC_DP2[1,1]=20

; 0

$TC_DP3[1,1]=10

; (Z) length compensation vector

$TC_DP4[1,1]=0

; (Y)

$TC_DP5[1,1]=0

; (X)

$TC_DP6[1,1]=2

; Radius

T1 D1

G0 X0 Y0 Z0 F10000

G54

$P_CHBFRAME[0]= CROT(Z,45)

$P_IFRAME[X,TR]= -sin(45)

$P_IFRAME[Y,TR]= -sin(45)

$P_PFRAME[Z,RT]= -45

; Measure groove.

$AC_MEAS_VALID=0

; Set all input values to invalid.

G1 X-2

; 1. Approach measuring point.

$AA_MEAS_POINT1[X]=$AA_IW[X]

$AA_MEAS_POINT1[Y]=$AA_IW[Y]

$AA_MEAS_POINT1[Z]=$AA_IW[Z]

Extended Functions

566

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

9.5.2.6

Measurement type 13: Measurement of a web

Function

A web is measured by approaching the two outside corners or inner edges. The web center

can be set to a set position. The component of the approach direction determines the web

position.

\

\

\

\

[

[

[

[

\

[

Figure 9-8

Measurement of a web

The values of the following system variables are evaluated for measurement type 13:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of the web center

$AC_MEAS_DIR_APPROACH

Direction of approach to the workpiece

= 0

+ X

= 1

- X

= 2

+ Y

= 3

- Y

= 4

+ Z

= 5

- Z

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_INPUT[0] *⁾

Approach direction for 2nd measuring point for a recess

measurement. Must have the same coordinate as the ap-

proach direction of the 1st measuring point.

$AC_MEAS_TYPE

= 13

Measurement type 13: Measurement of a web

^*) Optional

Extended Functions

568

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

The following output variables are written for measurement type 13:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translation

$AC_MEAS_RESULTS[0]

Position of the calculated web center (X0, Y0 or Z0)

$AC_MEAS_RESULTS[1]

Web width in approach direction

9.5.2.7

Measurement type 14: Preset actual value for geometry and special axes

Function

The measurement with measurement type 14 is performed via an HMI operator action.

6SHFLDO D[HV

]

$ 6HW

$ 6HW

$ 6HW

<

3

$FW

$

]L

$FW

$ $FW

\L

$ $FW

3

6HW

[V \V ]V

[L

[

Figure 9-9

Preset actual value for geometry and special axes

The values of the following system variables are evaluated for measurement type 14:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AA_MEAS_POINT1[<Axis>]

Actual values of the axes

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of the individual axes

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_TYPE

= 14

Measurement type 14: Preset actual value for geom-

etry and special axes

^*) Optional

The following output variables are written for measurement type 14:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translations

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

569

M5: Measurement

9.5 Workpiece and tool measurement

Example

Reference point setting in relative coordinate systems.

Program code

Comment

DEF INT RETVAL

T1 D1

; Activate probe.

G54

; Activate all frames and G54.

TRANS X=10

; Offset between WCS and SZS

G0 X0 F10000

; WCS(X)=0; SZS(X)=10

$AC_MEAS_VALID=0

; Set all input variables to invalid.

$AC_MEAS_TYPE=14

; Measurement type for preset actual value

$AC_MEAS_ACT_PLANE=0

; Measuring plane is G17.

$AC_MEAS_P1_COORD=5

; SZS_REL for 1st measuring point

$AC_MEAS_LATCH[0]=1

; Pick up all axis positions.

$AC_MEAS_SET_COORD=5

; Set position is relative to SZS.

$AA_MEAS_SETPOINT[X]=0

; Set position in the relative SZS coordinate

system

$AC_MEAS_FRAME_SELECT=2505

; $P_RELFR

RETVAL=MEASURE()

; Calculation of $P_RELFR, PI SETUDT(6)

IF RETVAL<>0 GOTOF ERROR

ENDIF $P_RELFR=$AC_MEAS_FRAME

; Activation, PI SETUDT(7)

9.5.2.8

Measurement type 15: Preset actual value for special axes only

Function

The measurement with measurement type 15 is performed via an HMI operator action.

6SHFLDO D[HV

$ 6HW

$ 6HW

$ 6HW

$ $FW

$ $FW

$ $FW

Figure 9-10

Preset actual value for special axes only

Extended Functions

570

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

The values of the following system variables are evaluated for measurement type 15:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AA_MEAS_POINT1[<Axis>]

Actual values of the axes

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of the individual axes

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_TYPE

= 15

Measurement type 14: Preset actual value for special

axes only

^*) Optional

The following output variables are written for measurement type 15:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translations

9.5.2.9

Measurement type 16: Measurement of an inclined edge

Function

This measurement determines the position angle of the workpiece and enters it in the frame.

A set angle in the ± 90 degrees range can be specified. This can be interpreted as the resulting

rotation of the workpiece after the result frame for the active WCS has been activated.

*

*

*

<

[

5HIHUHQFH D[LV

]

3

3

3

3

3

3

[

]

<

Figure 9-11

Measurement of an inclined edge in planes G17/G18/G19

The values of the following system variables are evaluated for measurement type 16:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

571

M5: Measurement

9.5 Workpiece and tool measurement

Input variable

Meaning

$AA_MEAS_SETANGLE *⁾

Set angle

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_INPUT[0] *⁾

Unless otherwise specified, the reference coordinate for the

alignment of the workpiece is always the abscissa of the se-

lected plane.

= 0

Reference coordinate is the abscissa

= 1

Reference coordinate is the ordinate

$AC_MEAS_INPUT[1] *⁾

Unless otherwise specified, the workpiece position angle is

entered in the frame as a rotation. Otherwise, a channel axis

index can be specified for a rotary axis whose translation is

set to the current rotary axis position plus the calculated ro-

tation. The workpiece is then aligned at rotary axis position

= 0. The current rotary axis value must be set in

$AA_MEAS_POINT[<Axis>].

$AC_MEAS_TYPE

= 16

Measurement type 16: Measurement of an inclined

edge

* optional

The following output variables are written for measurement type 16:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with rotation

$AC_MEAS_WP_ANGLE

Calculated workpiece position angle

Extended Functions

572

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

9.5.2.10

Measurement type 17: Measurement of an angle in an inclined plane

Function

The inclined plane is determined using three measuring points P1, P2 and P3.

$&B0($6B5(68/76> @

]

˞

3

3

\

3

\ಬ

]ಬ

˞

$&B0($6B5(68/76> @

[ಬ

[

Figure 9-12

Measurement of an angle in an inclined plane in G17

With measurement type 17, two resulting angles α ₀ and α ₁ are determined for the skew of the

plane and entered in $AC_MEAS_RESULTS[0 ... 1]:

● $AC_MEAS_RESULTS[0] → Rotation around the abscissa

● $AC_MEAS_RESULTS[1] → Rotation around the ordinate

These angles are calculated with the three measuring points P1, P2 and P3.

With measurement type 17, the angle for the applicate ($AC_MEAS_RESULTS[2]) is always

preset with 0.

A set rotation that is entered in the result frame can be specified for the abscissa and/or the

ordinate. If only one angle is specified with a setpoint, the second angle is calculated so that

the three measuring points are on an inclined plane with the setpoint angle. Only rotations are

entered in the result frame, the WCS reference point is retained. The WCS is rotated so that

Z' is perpendicular to the inclined plane.

The following plane settings are defined for measurement type 17:

Axis identifier

G17

G18

G19

Abscissa

X axis

Z axis

Y axis

Ordinate

Y axis

X axis

Z axis

Applicate (infeed axis)

Z axis

Y axis

X axis

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

573

M5: Measurement

9.5 Workpiece and tool measurement

The values of the following system variables are evaluated for measurement type 17:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2

$AA_MEAS_POINT3[<Axis>]

Measuring point 3

$AA_MEAS_SETANGLE[<Axis>] *⁾

Set rotations around abscissa and ordinate.

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_INPUT[0] *⁾

Unless otherwise specified, the points are not projected in a

plane.

= 0

Points are not projected on a plane.

= 1

Points are projected in the active plane or in the se-

lected plane.

$AC_MEAS_TYPE

= 17

^*) Optional

The following output variables are written for measurement type 17:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame

$AC_MEAS_RESULTS[0]

Angles around abscissa from which three measuring points

are calculated

$AC_MEAS_RESULTS[1]

Angles around ordinate from which three measuring points

are calculated

$AC_MEAS_RESULTS[2]

Angles around applicate from which three measuring points

are calculated

$AC_MEAS_RESULTS[3]

Angle around abscissa which is entered in the result frame

$AC_MEAS_RESULTS[4]

Angle around ordinate which is entered in the result frame

$AC_MEAS_RESULTS[5]

Angle around applicate which is entered in the result frame

Example

Program code

Comment

DEF INT RETVAL

DEF AXIS _XX, _YY, _ZZ

T1 D1

; Activate probe.

G54

; Activate all frames and G54.

$AC_MEAS_VALID=0

; Set all input values to invalid.

$AC_MEAS_TYPE=17

; Set measurement type for inclined plane.

Extended Functions

574

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

Program code

Comment

SETAL(61043, << $AC_MEAS_RESULTS[1])

ENDIF

$P_UIFR[2]=$AC_MEAS_FRAME

; Write measurement frame to the data manage-

ment (G55).

G55 G0 AX[_XX]=10 AX[_YY]=10

; Activate frame and traverse.

M30

9.5.2.11

Measurement type 18: Redefining the WCS on the inclined plane

Function

The zero point of the new WCS is determined by measuring point P1 at surface normal on the

inclined plane.

$&B0($6B5(68/76> @

]

]

$&B0($6B5(68/76> @

˞

\

3

[

3

<

:&6

3

˞

$&B0($6B5(68/76> @

:&6

[

Figure 9-13

Redefining the WCS on the inclined plane in G17

Measurement of plane

The plane is measured in one measuring cycle. The cycle records the three measuring points

and passes the necessary values to the variable interface.

The MEASURE() function calculates the solid angles and translational offset of the new WCS'

on the basis of the input values.

Extended Functions

576

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

Transformation of measuring frame

The results of the calculation, i.e. the solid angles and translation, are entered in the

$AC_MEAS_FRAME measuring frame. The measuring frame is transformed according to the

selected frame in the frame chain. The solid angles are also stored in the

$AC_MEAS_RESULTS[0 ... 2] output values.

● $AC_MEAS_RESULTS[0]: Angle around the abscissa of the old WCS

● $AC_MEAS_RESULTS[1]: Angle around the ordinate

● $AC_MEAS_RESULTS[2]: Angle around the applicate

Specifying the new WCS' zero point

After performing the calculation, the measuring cycle can write and activate the selected frame

in the frame chain with the measuring frame. After activation, the new WCS' is positioned at

surface normal on the inclined plane, with measuring point P1 as the zero point of the new

WCS'.

The programmed positions then refer to the inclined plane.

Application

CAD systems often define inclined planes by specifying three points P1, P2 and P3 on this

plane. Whereby, the 1st measuring point P1 is used as the new WCS' reference point, the 2nd

measuring point P2 specifies the direction of the abscissa X' of the new rotated WCS'

coordinate system and the 3rd measuring point P3 is required to determine the solid angles.

Input/output variables

The values of the following system variables are evaluated for measurement type 18:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2

$AA_MEAS_POINT3[<Axis>]

Measuring point 3

$AA_MEAS_SETPOINT[<Axis>] *⁾

Set position of P1

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_INPUT[0] *⁾

Unless otherwise specified, the points are not projected in a

plane.

= 0

Points are not projected on a plane.

= 1

Points are projected in the active plane or in the se-

lected plane.

$AC_MEAS_TYPE

= 18

Measurement type 18: Redefining the WCS on the

inclined plane

* optional

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

577

M5: Measurement

9.5 Workpiece and tool measurement

The following output variables are written for measurement type 18:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with rotations and transformation

$AC_MEAS_RESULTS[0]

Calculated angle around the abscissa

$AC_MEAS_RESULTS[1]

Calculated angle around the ordinate

$AC_MEAS_RESULTS[2]

Calculated angle around the applicate

Example

Program code

Comment

DEF INT RETVAL

DEF AXIS _XX, _YY, _ZZ

T1 D1

;

Activate probe.

G54

;

Activate all frames and G54.

$AC_MEAS_VALID=0

;

Set all input values to invalid.

$AC_MEAS_TYPE=18

;

Set measurement type for inclined plane.

$AC_MEAS_ACT_PLANE=0

;

Measuring plane is G17.

_XX=$P_AXN1

;

Specify axes according to the plane.

_YY=$P_AXN2

_ZZ=$P_AXN3

G17 G1 _XX=10 _YY=10 F1000

;

Approach 1st measuring point.

MEAS=1 _ZZ=...

$AA_MEAS_POINT1[_XX]=$AA_MW[_XX]

;

Assign measured value to abscissa.

$AA_MEAS_POINT1[_YY]=$AA_MW[_YY]

;

Assign measured value to ordinate.

$AA_MEAS_POINT1[_ZZ]=$AA_MW[_ZZ]

;

Assign measured value to applicate.

G1 _XX=20 _YY=10 F1000

;

Approach 2nd measuring point.

MEAS=1 _ZZ=...

$AA_MEAS_POINT2[_XX]=$AA_MW[_XX]

;

Assign measured value to abscissa.

$AA_MEAS_POINT2[_YY]=$AA_MW[_YY]

;

Assign measured value to ordinate.

$AA_MEAS_POINT2[_ZZ]=$AA_MW[_ZZ]

;

Assign measured value to applicate.

G1 _XX=20 _YY=20 F1000

;

Approach 3rd measuring point.

MEAS=1 _ZZ=...

$AA_MEAS_POINT3[_XX]=$AA_MW[_XX]

;

Assign measured value to abscissa.

$AA_MEAS_POINT3[_YY]=$AA_MW[_YY]

;

Assign measured value to ordinate.

$AA_MEAS_POINT3[_ZZ]=$AA_MW[_ZZ]

;

Assign measured value to applicate.

Extended Functions

578

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

Program code

Comment

$AA_MEAS_SETPOINT[_XX]=10

; Specify setpoints for P1.

$AA_MEAS_SETPOINT[_YY]=10

$AA_MEAS_SETPOINT[_ZZ]=10

$AC_MEAS_FRAME_SELECT=102

; Select target frame - G55

$AC_MEAS_T_NUMBER=1

; Select tool.

$AC_MEAS_D_NUMBER=1

RETVAL=MEASURE()

; Start measurement calculation.

IF RETVAL <> 0

SETAL(61043, << RETVAL)

ENDIF

; Calculation results for the solid angles.

R0=$AC_MEAS_RESULTS[0]

; Angle around the abscissa of the old WCS

R1=$AC_MEAS_RESULTS[1]

; Angle around the ordinate

R2=$AC_MEAS_RESULTS[2]

; Angle around the applicate

$P_UIFR[2]=$AC_MEAS_FRAME

; Write measurement frame to the data manage-

ment (G55).

G55 G0 AX[_XX]=10 AX[_YY]=10

; Activate frame and traverse.

M30

9.5.2.12

Measurement type 19: 1-dimensional setpoint specification

Function

With this measurement method, it is possible to define exactly one setpoint for the abscissa,

the ordinate and the applicate. If two or three setpoints are defined, only the first is accepted

in the sequence abscissa, ordinate and applicate. The tool is not taken into account.

It is purely a preset actual value for the abscissa, the ordinate or the applicate.

The values of the following system variables are evaluated for measurement type 19:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the abscissa

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the ordinate

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the applicate

$AA_MEAS_SETPOINT[<Axis>]

Set position of the abscissa or ordinate or applicate

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

579

M5: Measurement

9.5 Workpiece and tool measurement

Input variable

Meaning

$AC_MEAS_FINE_TRANS *⁾

Unless otherwise specified, written to the coarse offset.

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_TYPE

= 19

Measurement type 19: 1-dimensional setpoint speci-

fication

^*) Optional

The following output variables are written for measurement type 19:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with rotations and translation

Example

Program code

Comment

DEF INT RETVAL

DEF REAL _CORMW_XX, CORMW_YY, _CORMW_ZZ

DEF AXIS _XX, _YY, _ZZ

T1 D1

; Activate probe.

G54

; Activate all frames and G54.

$AC_MEAS_VALID=0

; Set all input values to invalid.

$AC_MEAS_TYPE=19

; Set measurement type for 1-dimensional set-

point specification.

$AC_MEAS_ACT_PLANE=0

; Measuring plane is G17.

_XX=$P_AXN1

; Specify axes according to the plane.

_YY=$P_AXN2

_ZZ=$P_AXN3

; Assign measured values.

$AA_MEAS_POINT1[_XX]=$AA_MW[_XX]

; Assign measured value to abscissa.

$AA_MEAS_POINT1[_YY]=$AA_MW[_YY]

; Assign measured value to ordinate.

$AA_MEAS_POINT1[_ZZ]=$AA_MW[_ZZ]

; Assign measured value to applicate.

$AA_MEAS_SETPOINT[_XX]=10

; Specify setpoint for the abscissa.

$AC_MEAS_FRAME_SELECT=102

; Select target frame - G55

RETVAL=MEASURE()

; Start measurement calculation.

IF RETVAL <> 0

SETAL(61043, << RETVAL)

ENDIF

$P_UIFR[2]=$AC_MEAS_FRAME

; Write measurement frame to the data manage-

ment (G55).

G55 G0 AX[_XX]=10 AX[_YY]=10

; Activate frame and traverse.

M30

Extended Functions

580

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

9.5.2.13

Measurement type 20: 2-dimensional setpoint specification

Function

Setpoints for two dimensions can be defined using this measuring method. Any combination

of 2 out of 3 axes is permissible. If three setpoints are specified, only the values for the abscissa

and the ordinate are accepted. The tool is not taken into account.

This is a purely preset actual value.

The values of the following system variables are evaluated for measurement type 20:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the abscissa

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the ordinate

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the applicate

$AA_MEAS_SETPOINT[<Axis>]

Set position for the 1st dimension

$AA_MEAS_SETPOINT[<Axis>]

Set position for the 2nd dimension

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

Unless otherwise specified, written to the coarse offset.

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_TYPE

= 20

Measurement type 20: 2-dimensional setpoint speci-

fication

^*) Optional

The following output variables are written for measurement type 20:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with rotations and translation

Example

Program code

Comment

DEF INT RETVAL

DEF REAL _CORMW_XX, CORMW_YY, _CORMW_ZZ

DEF AXIS _XX, _YY, _ZZ

T1 D1

; Activate probe.

G54

; Activate all frames and G54.

$AC_MEAS_VALID=0

; Set all input values to invalid.

$AC_MEAS_TYPE=20

; Set measurement type for 2-dimensional set-

point specification.

$AC_MEAS_ACT_PLANE=0

; Measuring plane is G17.

_XX=$P_AXN1

; Specify axes according to the plane.

_YY=$P_AXN2

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

581

M5: Measurement

9.5 Workpiece and tool measurement

Program code

Comment

_ZZ=$P_AXN3

; Assign measured values.

$AA_MEAS_POINT1[_XX]=$AA_MW[_XX]

; Assign measured value to abscissa.

$AA_MEAS_POINT1[_YY]=$AA_MW[_YY]

; Assign measured value to ordinate.

$AA_MEAS_POINT1[_ZZ]=$AA_MW[_ZZ]

; Assign measured value to applicate.

$AA_MEAS_SETPOINT[_XX]=10

; Specify setpoint for the abscissa and ordi-

nate.

$AA_MEAS_SETPOINT[_YY]=10

$AC_MEAS_FRAME_SELECT=102

; Select target frame - G55

RETVAL=MEASURE()

; Start measurement calculation.

IF RETVAL <> 0

SETAL(61043, << RETVAL)

ENDIF

$P_UIFR[2]=$AC_MEAS_FRAME

; Write measurement frame to the data manage-

ment (G55).

G55 G0 AX[_XX]=10 AX[_YY]=10

; Activate frame and traverse.

M30

9.5.2.14

Measurement type 21: 3-dimensional setpoint specification

Function

Using this measurement method, it is possible to define a setpoint for the abscissa, the ordinate

and the applicate. The tool is not taken into account.

It is purely a preset actual value for the abscissa, ordinate and applicate.

The values of the following system variables are evaluated for measurement type 21:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the abscissa

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the ordinate

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for the applicate

$AA_MEAS_SETPOINT[<Axis>]

Set position for the abscissa

$AA_MEAS_SETPOINT[<Axis>]

Set position for the ordinate

$AA_MEAS_SETPOINT[<Axis>]

Set position for the applicate

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

Unless otherwise specified, written to the coarse offset.

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_TYPE

= 21

Measurement type 21: 3-dimensional setpoint speci-

fication

^*) Optional

Extended Functions

582

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

The following output variables are written for measurement type 21:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with rotations and translation

Example

Program code

Comment

DEF INT RETVAL

DEF REAL _CORMW_XX, CORMW_YY, _CORMW_ZZ

DEF AXIS _XX, _YY, _ZZ

T1 D1

; Activate probe.

G54

; Activate all frames and G54.

$AC_MEAS_VALID=0

; Set all input values to invalid.

$AC_MEAS_TYPE=21

; Set measurement type for 3-dimensional set-

point specification.

$AC_MEAS_ACT_PLANE=0

; Measuring plane is G17.

_XX=$P_AXN1

; Specify axes according to the plane.

_YY=$P_AXN2

_ZZ=$P_AXN3

; Assign measured values.

$AA_MEAS_POINT1[_XX]=$AA_MW[_XX]

; Assign measured value to abscissa.

$AA_MEAS_POINT1[_YY]=$AA_MW[_YY]

; Assign measured value to ordinate.

$AA_MEAS_POINT1[_ZZ]=$AA_MW[_ZZ]

; Assign measured value to applicate.

$AA_MEAS_SETPOINT[_XX]=10

; Specify setpoint for the abscissa, ordinate

and applicate.

$AA_MEAS_SETPOINT[_YY]=10

$AA_MEAS_SETPOINT[_ZZ]=10

$AC_MEAS_FRAME_SELECT=102

; Select target frame - G55

RETVAL=MEASURE()

; Start measurement calculation.

IF RETVAL <> 0

SETAL(61043, << RETVAL)

ENDIF

$P_UIFR[2]=$AC_MEAS_FRAME

; Write measurement frame to the data manage-

ment (G55).

G55 G0 AX[_XX]=10 AX[_YY]=10

; Activate frame and traverse.

M30

9.5.2.15

Measurement type 24: Coordinate transformation of a measuring point

Function

With this method of measurement, a measuring point in any coordinate system (WCS, BCS,

MCS) can be converted to a new coordinate system by coordinate transformation.

The new coordinate system is generated by specifying a desired frame chain.

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

583

M5: Measurement

9.5 Workpiece and tool measurement

]

]

3

0&6

3

0&6

\

<

[

:&6

6SHFLILHG IUDPH

%&6

[

Figure 9-14

Coordinate transformation of a measuring point

The values of the following system variables are evaluated for measurement type 24:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Position to be transformed

$AC_MEAS_P1:COORD *⁾

= 0

WCS (default)

= 1

BCS

= 2

MCS

$AC_MEAS_P2_COORD *⁾

Target coordinate system

$AC_MEAS_TOOL_MASK *⁾

0x20

Length of the active tool is included in the coordinate

transformation of a position.

$AC_MEAS_CHSFR *⁾

System frames from the data management

$AC_MEAS_NCBFR *⁾

Global basic frames from the data management

$AC_MEAS_CHBFR *⁾

Channel basic frames from the data management

$AC_MEAS_UIFR *⁾

Settable frame from the data management

$AC_MEAS_PFRAME *⁾

= 1

Programmable frame is not calaculated.

$AC_MEAS_TYPE

= 24

Measurement type 24:

^*) Optional

The following output variables are written for measurement type 24:

Output variable

Meaning

$AC_MEAS_POINT2[axis]

Converted axis positions

Extended Functions

584

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

9.5.2.16

Measurement type 25: Measurement of a rectangle

Function

Four measuring points per rectangle are required to determine a rectangle (tool dimensions)

in the working plane G17 (working plane X/Y, infeed direction Z), G18 (working plane Z/X,

infeed direction Y) or G19 (working plane Y/Z, infeed direction X).

Measuring points can be specified in any desired order. The measuring points with the largest

ordinate distance correspond to points P3 and P4.

*

*

*

\

[

]

3

3

3

3

3

3

3

3

3

3

3

3

\

[

]

Figure 9-15

Measurement of a rectangle

The values of the following system variables are evaluated for measurement type 25:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_POINT2[<Axis>]

Measuring point 2

$AA_MEAS_POINT3[<Axis>]

Measuring point 3

$AA_MEAS_POINT4[<Axis>]

Measuring point 4

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FINE_TRANS *⁾

= 0

Coarse offset

= 1

Fine offset

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_INPUT[0] *⁾

Unless otherwise specified, measurement is performed for

the outer corner.

= 0

Measurement for outer corner

= 1

Measurement for inner corner

$AC_MEAS_TYPE

= 25

Measurement type 25: Measurement of a rectangle

^*) Optional

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

587

M5: Measurement

9.5 Workpiece and tool measurement

The following output variables are written for measurement type 25:

Output variable

Meaning

$AC_MEAS_FRAME

Result frame with translation

$AC_MEAS_RESULTS[0]

Abscissa of the calculated center point

$AC_MEAS_RESULTS[1]

Ordinate of the calculated center point

$AC_MEAS_RESULTS[2]

Applicate of the calculated center point

$AC_MEAS_RESULTS[3]

Width of the rectangle P1/P2

$AC_MEAS_RESULTS[4]

Length of the rectangle P3/P4

9.5.2.17

Measurement type 26: Backup of data management frames

Function

This measurement type offers the option of saving some or all data management frames with

their current value assignments to a file. The measurement can be initiated by executing a

command or via the part program. The function can also be activated from different channels.

The files are saved in the "_N_SYF_DIR" directory.

A Restore operation deletes the backed-up data and a new Save operation overwrites the

existing back-up.

The data saved last can be deleted from the data management through a new backup with

the following settings:

● $AC_MEAS_CHSFR = 0 ; System frames

● $AC_MEAS_NCBFR = 0 ; Global basic frames

● $AC_MEAS_CHBFR = 0 ; Channel basic frames

● $AC_MEAS_UIFR = 0 ; Number of settable frames

Note

If you decide to create a backup of all data management frames, remember that 1 KB of

memory is needed to save each frame. If insufficient memory is available, the process is

aborted with an error message.

Remedy: Adapt the configuration of the static user memory.

References: See Section "S7: Memory configuration (Page 827)".

The values of the following system variables are evaluated for measurement type 26:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AC_MEAS_CHSFR *⁾

Bit mask of system frames from the data management.

If this variable is not written, all system frames are backed

up.

Extended Functions

588

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

Input variable

Meaning

$AC_MEAS_NCBFR *⁾

Bit mask of global basic frames from the data management.

If this variable is not written, all global basic frames are

backed up.

$AC_MEAS_CHBFR *⁾

Bit mask of channel basic frames from the data management.

If this variable is not written, all channel basic frames are

backed up.

$AC_MEAS_UIFR *⁾

Number of settable frames from the data management.

If this variable is not written, all settable frames are backed

up.

$AC_MEAS_TYPE

= 26

Measurement type 26: Backup of data management

frames

^*) Optional

9.5.2.18

Measurement type 27: Restoration of backed up data management data

Function

This measurement type allows data management frames backed up by measurement type 26

to be restored to the dynamic user memory.

It is possible to restore either the frames backed up last or selected frames. If a frame that has

not been backed up is selected, the selection is ignored. The process is not aborted.

The values of the following system variables are evaluated for measurement type 27:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AC_MEAS_CHSFR *⁾

Bit mask of system frames from the data management.

If the variable is not written, all system frames are restored.

$AC_MEAS_NCBFR *⁾

Bit mask of global basic frames from the data management.

If the variable is not written, all global basic frames are re-

stored.

$AC_MEAS_CHBFR *⁾

Bit mask of channel basic frames from the data management.

If the variable is not written, all channel basic frames are re-

stored.

$AC_MEAS_UIFR *⁾

Number of settable frames from the data management.

If the variable is not written, all settable frames are restored.

$AC_MEAS_TYPE

= 27

Measurement type 27: Restoration of backed up data

management data

^*) Optional

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

589

M5: Measurement

9.5 Workpiece and tool measurement

9.5.2.19

Measurement type 28: Specification of an additive rotation for taper turning

Function

Measuring type 28 can be used to specify an additive rotation through an angle α of the active

or a certain plane.

Value range: - 90 ° ≤ α ≤ + 90 °

The rotation takes place on the coordinate axis at right angles to the plane.

\

[

]

\

[

]

*

*

*

[

]

\

˞

˞

˞

[

]

\

Figure 9-16

Specification of an additive rotation (α = +30°) for taper turning in the G17/G18/G19 plane

Application

With taper turning, the active plane is rotated by the taper angle, whereby the rotation is written

in the active cycle frame. The cycle frame is deleted with reset. Re-activation may be

necessary. The selection of the cycle frame is made depending on the SZS position display.

If after activation of the rotation, e.g. with active plane G18, traversing is performed in the

direction of Z', the actual positions of the corresponding axes change simultaneously for X and

Z. Rotations with active planes G17 and G19 behave similarly and are displayed in the above

figure.

Input/output variables

The values of the following system variables are evaluated for measurement type 28:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for input variables

$AC_MEAS_WP_SETANGLE

Set angle

$AC_MEAS_ACT_PLANE *⁾

Rotation is around the active plane unless otherwise speci-

fied.

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_INPUT[0] *⁾

= 1

Taper turning is active.

$AC_MEAS_TYPE

= 28

Measurement type 28: Specification of an additive

rotation for taper turning

^*) Optional

The following output variables are written for measurement type 28:

Output variable

Meaning

$AC_MEAS_FRAME

Result with rotation

Extended Functions

590

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

9.5.3

Measuring types of the tool measurement

9.5.3.1

Overview

The following measurement types can be used to measure a tool loaded on a turning or milling

machine:

Measurement type

Type of measurement

$AC_MEAS_TYPE =

10

Measurement of the tool length (Page 591)

11

Measurement of the tool diameter (Page 593)

22

Measurement of tool lengths with zoom-in function (Page 595)

23

Measurement of a tool length with a stored or actual position

(Page 596)

Measurement of a tool length of two tools with orientation (Page 597)

9.5.3.2

Measurement type 10: Measurement of the tool length

Function

The tool length can be measured on a previously measured reference part.

The plane selection depends on the position of the tool:

● G17 for tool position in the Z direction

● G18 for tool position in the Y direction

● G19 for tool position in the X direction

*

*

*

]

\

[

]

\

[

]

\

[

[

]

\

]

\

[

Figure 9-17

Measurement of the tool length in the G17/G18/G19 plane

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

591

M5: Measurement

9.5 Workpiece and tool measurement

The values of the following system variables are evaluated for measurement type 10:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AC_MEAS_P1_COORD *⁾

Coordinate system of the measuring point

$AA_MEAS_SETPOINT[<Axis>]

Set position Z0

$AC_MEAS_SET_COORD *⁾

Coordinate system of the setpoint

$AC_MEAS_DIR_APPROACH

Direction of approach to the workpiece

= 0

+ X

= 1

- X

= 2

+ Y

= 3

- Y

= 4

+ Z

= 5

- Z

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_TYPE

= 10

Measurement type 10: Measurement of the tool

length

^*) Optional

The following output variables are written for measurement type 10:

Output variable

Meaning

$AC_MEAS_TOOL_LENGTH

Tool length

$AC_MEAS_RESULTS[0]

Tool length in X

$AC_MEAS_RESULTS[1]

Tool length in Y

$AC_MEAS_RESULTS[2]

Tool length in Z

$AC_MEAS_RESULTS[3]

Tool length L1

$AC_MEAS_RESULTS[4]

Tool length L2

$AC_MEAS_RESULTS[5]

Tool length L3

Example

Program code

Comment

DEF INT RETVAL

T0 D0

G0 X0 Y0 Z0 F10000

; Measure tool length.

$AC_MEAS_VALID=0

; Set all input values to invalid.

G1 Z10

; Traverse tool to reference part.

$AC_MEAS_LATCH[0]=1

; Pick up measuring point 1.

$AC_MEAS_DIR_APPROACH=5

; Set approach direction -Z

$AA_MEAS_SETPOINT[X]=0

; Set reference position.

$AA_MEAS_SETPOINT[Y]=0

Extended Functions

592

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

]

]

*

*

[

[

\

\

[

[

\

[

\

\

*

*

[

[

]

]

[

[

]

]

[

[

*

*

\

\

]

]

\

\

]

]

Figure 9-18

Measurement of the tool diameter in the G17/G18/G19 plane

The values of the following system variables are evaluated for measurement type 11:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1

$AA_MEAS_SETPOINT[<Axis>]

Set position X0

$AC_MEAS_DIR_APPROACH

Direction of approach to the workpiece

= 0

+ X

= 1

- X

= 2

+ Y

= 3

- Y

= 4

+ Z

= 5

- Z

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_TYPE

= 11

Measurement type 11: Measurement of the tool di-

ameter

^*) Optional

The following output variables are written for measurement type 11:

Output variable

Meaning

$AC_MEAS_TOOL_DIAMETER

Tool diameter

Extended Functions

594

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

9.5.3.4

Measurement type 22: Measurement of tool lengths with zoom-in function

Function

If a zoom-in function is available on the machine, it can also be used to determine the tool

lengths.

[

[

]

]

Figure 9-19

Measurement of tool lengths with zoom-in function

The values of the following system variables are evaluated for measurement type 22:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Measuring point 1 for all channel axes

$AC_MEAS_P1_COORD *⁾

Coordinate system of the measuring point

$AA_MEAS_SETPOINT[<Axis>]

Zoom positions X and Z must be specified.

$AC_MEAS_SET_COORD *⁾

Coordinate system of the setpoint

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_FRAME_SELECT *⁾

Calculated as additive frame unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_TYPE

= 22

Measurement type 22: Measurement of tool lengths

with zoom-in function

^*) Optional

The following output variables are written for measurement type 22:

Output variable

Meaning

$AC_MEAS_RESULT[0]

Tool length in X

$AC_MEAS_RESULT[1]

Tool length in Y

$AC_MEAS_RESULT[2]

Tool length in Z

$AC_MEAS_RESULT[3]

Tool length L1

$AC_MEAS_RESULT[4]

Tool length L2

$AC_MEAS_RESULT[5]

Tool length L3

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

595

M5: Measurement

9.5 Workpiece and tool measurement

9.5.3.5

Measurement type 23: Measurement of a tool length with a stored or actual position

Function

In the case of manual measurement, the tool dimensions can be determined in the X and Z

directions. ShopTurn then calculates the tool offset data from the known position of the tool

carrier reference point and the workpiece dimensions.

[

[

[

]

]

]

Figure 9-20

Measurement of a tool length with a stored or actual position

The values of the following system variables are evaluated for measurement type 23:

Input variable

Meaning

$AC_MEAS_VALID

Validity bits for the input variables

$AA_MEAS_POINT1[<Axis>]

Current or stored position

$AC_MEAS_P1_COORD *⁾

Coordinate system of the measuring point

$AA_MEAS_SETPOINT[<Axis>]

Set position (at least one geometry axis must be specified)

$AC_MEAS_SET_COORD *⁾

Coordinate system of the setpoint

$AC_MEAS_ACT_PLANE *⁾

Calculation with active plane unless otherwise specified.

$AC_MEAS_T_NUMBER *⁾

Calculated with active T unless otherwise specified (T0).

$AC_MEAS_D_NUMBER *⁾

Calculated with active D unless otherwise specified (D0).

$AC_MEAS_TOOL_MASK *⁾

Tool position, radius

$AC_MEAS_DIR_APPROACH *⁾

Direction of approach to the workpiece

= 0

+ X

= 1

- X

= 2

+ Y

= 3

- Y

= 4

+ Z

= 5

- Z

$AC_MEAS_INPUT[0] *⁾

= 1

The calculated tool lengths are written to the data

management.

$AC_MEAS_TYPE

= 23

Measurement type 23:

^*) Optional

Extended Functions

596

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

The following output variables are written for measurement type 23:

Output variable

Meaning

$AC_MEAS_RESULT[0]

Tool length in X

$AC_MEAS_RESULT[1]

Tool length in Y

$AC_MEAS_RESULT[2]

Tool length in Z

$AC_MEAS_RESULT[3]

Tool length L1

$AC_MEAS_RESULT[4]

Tool length L2

$AC_MEAS_RESULT[5]

Tool length L3

9.5.3.6

Measurement type 23: Measurement of a tool length of two tools with the following

orientation:

Tool orientation

For tools whose orientation points to the toolholder shows must be set in the system variables

$AC_MEAS_TOOL_MASK, bit 9 = 1 (0x200). The calculated tool lengths are then included

negatively.

Two turning tools each with their own reference point with a tool orientation in the approach direction

%&6

$SSURDFK GLUHFWLRQ

[

[

$SSURDFK GLUHFWLRQ

7RRO RULHQWDWLRQ

[

[

7RRO RULHQWDWLRQ

[

:=/ ದ

:=/ ದ

Settings in the system data:

Left-hand tool: Approach direction and tool orientation +x

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x2

Tool position in x direction (G19)

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

597

M5: Measurement

9.5 Workpiece and tool measurement

Right-hand tool: Approach direction and tool orientation -x

$AC_MEAS_TOOL_MASK = 0x40

Tool position in the -x direction

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

Two turning tools each with their own reference point with a tool counter-orientation in the approach

direction

%&6

$SSURDFK GLUHFWLRQ

[

[

$SSURDFK GLUHFWLRQ

7RRO RULHQWDWLRQ

[

[

7RRO RULHQWDWLRQ

[

:=/

:=/

Settings in the system data:

Left-hand tool: Approach direction and tool orientation +x

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x2 + 0x200

Tool position in x direction (G19) +

Tool length differential values are included nega-

tively

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction and tool orientation -x

$AC_MEAS_TOOL_MASK = 0x40

Tool position in the -x direction

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

Extended Functions

598

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

%&6

$SSURDFK GLUHFWLRQ

[

[

$SSURDFK GLUHFWLRQ

7RRO RULHQWDWLRQ

[

[

7RRO RULHQWDWLRQ

[

:=/ ದ

ದ

:=/

Settings in the system data:

Left-hand tool: Approach direction and tool orientation +x

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x2

Tool position in x direction (G19)

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction and tool orientation -x

$AC_MEAS_TOOL_MASK = 0x40 + 0x200

Tool position in x direction +

Tool length differential values are included nega-

tively

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

599

M5: Measurement

9.5 Workpiece and tool measurement

Two milling tools each with their own reference point, tool orientation perpendicular to the approach

direction

$SSURDFK GLUHFWLRQ

[

ದ[

$SSURDFK GLUHFWLRQ

%&6

\

:

[

ದ

ದ

Settings in the system data:

Left-hand tool: Approach direction +x and tool orientation -y

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x80

Tool position in -y direction

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction -x and tool orientation -y

$AC_MEAS_TOOL_MASK = 0x80

Tool position in -y direction

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

Extended Functions

600

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

Two milling tools each with a reference point, tool orientation perpendicular to the approach direction

Two milling tools with one reference point with a tool orientation in -y

$SSURDFK GLUHFWLRQ

[

ದ[

$SSURDFK GLUHFWLRQ

%&6

\

:

[

ದ

In the present layout, the tool position $AC_MEAS_TOOL_MASK and approach direction to

the workpiece $AC_MEAS_DIR_APPROACH must be set as follows:

Left-hand tool: Approach direction +x and tool orientation -y

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x80 + 0x200

Tool position in -y direction + tool length differential

values are included negatively

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction -x and tool orientation -y

$AC_MEAS_TOOL_MASK = 0x80

Tool position in -y direction

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

601

M5: Measurement

9.5 Workpiece and tool measurement

$SSURDFK GLUHFWLRQ

[

ದ[

$SSURDFK GLUHFWLRQ

%&6

\

:

[

In the present layout, the tool position $AC_MEAS_TOOL_MASK and approach direction to

the workpiece $AC_MEAS_DIR_APPROACH must be set as follows:

Left-hand tool: Approach direction +x and tool orientation -y

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x80

Tool position in -y direction

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction -x and tool orientation -y

$AC_MEAS_TOOL_MASK = 0x80 + 0x200

Tool position in -y direction + tool length differential

values are included negatively

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

Extended Functions

602

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

Two milling tools each with their own reference point with tool counter-orientation in the approach

direction

Two milling tools each with their own reference point with a tool orientation in the approach

direction

$SSURDFK GLUHFWLRQ

[

[

$SSURDFK GLUHFWLRQ

7RRO RULHQWDWLRQ

[

[

7RRO RULHQWDWLRQ

%&6

[

ದ

ದ

In the present layout, the tool position $AC_MEAS_TOOL_MASK and approach direction to

the workpiece $AC_MEAS_DIR_APPROACH must be set as follows:

Left-hand tool: Approach direction and tool orientation +x

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x2

Tool position in x direction (G19)

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction and tool orientation -x

$AC_MEAS_TOOL_MASK = 0x40

Tool position in the -x direction

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

603

M5: Measurement

9.5 Workpiece and tool measurement

Two milling tools each with a reference point with tool counter-orientation in the approach direction

Two milling tools with one reference point with a tool position opposite to the orientation

$SSURDFK GLUHFWLRQ

[

[

$SSURDFK GLUHFWLRQ

7RRO RULHQWDWLRQ

[

[

7RRO RULHQWDWLRQ

%&6

[

ದ

In the present layout, the tool position $AC_MEAS_TOOL_MASK and approach direction to

the workpiece $AC_MEAS_DIR_APPROACH must be set as follows:

Left-hand tool: Approach direction and tool orientation +x

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x2 + 0x200

Tool position in x direction (G19) + tool length dif-

ferential values are included negatively

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction and tool orientation -x

$AC_MEAS_TOOL_MASK = 0x40

Tool position in the -x direction

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

Extended Functions

604

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

$SSURDFK GLUHFWLRQ

[

[

$SSURDFK GLUHFWLRQ

7RRO RULHQWDWLRQ

[

[

7RRO RULHQWDWLRQ

%&6

[

In the present layout, the tool position $AC_MEAS_TOOL_MASK and approach direction to

the workpiece $AC_MEAS_DIR_APPROACH must be set as follows:

Left-hand tool: Approach direction and tool orientation +x

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x2

Tool position in x direction (G19)

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction and tool orientation -x

$AC_MEAS_TOOL_MASK = 0x40 + 0x200

Tool position in -x direction + tool length differential

values are included negatively

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 1

Coordinate system of x-th measuring point = BCS

$AC_MEAS_SET_COORD = 1

Coordinate system of the setpoint = BCS

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

605

M5: Measurement

9.5 Workpiece and tool measurement

Different tools in the WCS

%&6

[

Figure 9-21

Two turning tools each with their own reference point

Settings in the system data:

Left-hand tool: Approach direction +x and tool orientation -y

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x0

All tool lengths are considered

(default setting)

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction -x and tool orientation -y

$AC_MEAS_TOOL_MASK = 0x0

All tool lengths are considered

(default setting)

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 0

Coordinate system of x-th measuring point =

WCS (default setting)

$AC_MEAS_SET_COORD = 0

Coordinate system of the setpoint =

WCS (default setting)

Extended Functions

606

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.5 Workpiece and tool measurement

%&6

[

Figure 9-22

Two milling tools each with its own reference point

Settings in the system data:

Left-hand tool: Approach direction +x and tool orientation -y

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x80

Tool position in -y direction

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction -x and tool orientation -y

$AC_MEAS_TOOL_MASK = 0x80

Tool position in -y direction

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 0

Coordinate system of x-th measuring point =

WCS (default setting)

$AC_MEAS_SET_COORD = 0

Coordinate system of the setpoint =

WCS (default setting)

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

607

M5: Measurement

9.5 Workpiece and tool measurement

%&6

[

Figure 9-23

Two milling tools rotated at 90 degrees each with their own reference point

Settings in the system data:

Left-hand tool: Approach direction +x and tool orientation -y

System variable

Meaning

$AC_MEAS_TOOL_MASK = 0x2

Tool position in x direction (G19)

$AC_MEAS_DIR_APPROACH = 0

Approach direction +x

Right-hand tool: Approach direction -x and tool orientation -y

$AC_MEAS_TOOL_MASK = 0x40

Tool position in the -x direction

$AC_MEAS_DIR_APPROACH = 1

Approach direction -x

For both tools

$AC_MEAS_Px_COORD = 0

Coordinate system of x-th measuring point =

WCS (default setting)

$AC_MEAS_SET_COORD = 0

Coordinate system of the setpoint =

WCS (default setting)

Extended Functions

608

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.7 Simulated measuring

Preconditions

For simulated measuring, all of the machine axes in the system must be parameterized as

simulated axes:

● MD30130 $MA_CTRLOUT_TYPE[axis] = 0 (simulated setpoint)

● MD30240 $MA_ENC_TYPE[axis] = 0 (simulated encoder)

9.7.2

Position-related switch request

Function

"Position-related switch request" is selected using the following NC-specific machine data:

● MD13230 $MN_MEAS_PROBE_SOURCE = 0

● MD13231 $MN_MEAS_PROBE_OFFSET = <position offset>

The axial switching position is calculated from the axial end position programmed in the

measuring block and the parameterized position offset:

Switching position[axis] = End position[axis] - position offset

During the measuring block, it is cyclically checked as to whether the switching position of the

axis is reached:

Setpoint position[axis] ≥ switching position[axis]

When the switching position is reached, the rising edge of the switching signal is generated

for probes 1 and 2. One position controller cycle later, the following edges.

3RVLWLRQ RIIVHW

6ZLWFKLQJ VLJQDO

3RVLWLYH

1HJDWLYH

6WDUW SRVLWLRQ

6ZLWFKLQJ SRVLWLRQ (QG SRVLWLRQ

0HDVXULQJ EORFN

Figure 9-24

Position-dependent switch request

The measured value is the actual value of the axis at the instant in time that the switching

signal programmed in the measuring block occurs (rising / falling edge).

Extended Functions

612

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.8 Data lists

● $AA_MW (acquired probe position (WCS))

● $AA_MW1...4 (probe position 1st trigger (WCS))

The following system variable does not supply sensible values:

● $A_PROBE (probe state)

9.8

Data lists

9.8.1

Machine data

9.8.1.1

General machine data

Number

Identifier: $MN_

Meaning

13200

MEAS_PROBE_LOW_ACTIVE

Switching characteristics of probe

13201

MEAS_PROBE_SOURCE

Measuring pulse simulation via digital output

13210

MEAS_TYPE

Type of measurement for PROFIBUS DP drives

13211

MEAS_CENTRAL_SOURCE

Central measuring data source with PROFIBUS DP

drives

9.8.1.2

Channel-specific machine data

Number

Identifier: $MC_

Meaning

20360

TOOL_PARAMETER_DEF_MASK

Definition of tool parameters

28264

LEN_AC_FIFO

Length of $AC_FIFO ... FIFO variables

9.8.2

System variables

Table of all the input values

Identifier

Meaning

$AC_FIFO1…10

FIFO variable 1 to 10

$AC_MEAS_SEMA

Interface assignment

$AC_MEAS_VALID

Validity bits for input values

$AA_MEAS_POINT1

1. Measuring point for all channel axes

$AA_MEAS_POINT2

2. Measuring point for all channel axes

$AA_MEAS_POINT3

3. Measuring point for all channel axes

$AA_MEAS_POINT4

4. Measuring point for all channel axes

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

615

M5: Measurement

9.8 Data lists

Identifier

Meaning

$AA_MEAS_SETPOINT

Setpoint position for all channel axes

$AA_MEAS_SETANGLE

Setpoint angle for all channel axes

$AC_MEAS_P1_COORD

Coord. system for the 1st measuring point

$AC_MEAS_P2_COORD

Coord. system for the 2nd measuring point

$AC_MEAS_P3_COORD

Coord. system for the 3rd measuring point

$AC_MEAS_P4_COORD

Coord. system for the 4th measuring point

$AC_MEAS_SET_COORD

Coordinate system of the setpoint

$AC_MEAS_LATCH[0...3]

Pick up measuring points in the WCS

$AA_MEAS_P1_VALID

1. Pick up measuring point in the WCS

$AA_MEAS_P2_VALID

2. Pick up measuring point in the WCS

$AA_MEAS_P3_VALID

3. Pick up measuring point in the WCS

$AA_MEAS_P4_VALID

4. Pick up measuring point in the WCS

$AA_MEAS_SP_VALID

Set setpoint position of axis as valid

$AC_MEAS_WP_SETANGLE

Setpoint workpiece position angle

$AC_MEAS_CORNER_SETANGLE

Setpoint cutting angle of corner

$AC_MEAS_DIR_APPROACH

Approach direction

$AC_MEAS_ACT_PLANE

Working plane for the workpiece

$AC_MEAS_SCALEUNIT

Unit of measurement INCH / METRIC

$AC_MEAS_FINE_TRANS

Corrections in fine displacement

$AC_MEAS_FRAME_SELECT

Frame selection for the workpiece measurement

$AC_MEAS_CHSFR

Frame chain setting: System frames

$AC_MEAS_NCBFR

Frame chain setting: Global basic frames

$AC_MEAS_CHBFR

Frame chain setting: Channel basic frames

$AC_MEAS_UIFR

Frame chain setting: Settable frames

$AC_MEAS_PFRAME

Frame chain setting: Program frame

$AC_MEAS_T_NUMBER

Tool selection

$AC_MEAS_D_NUMBER

Cutting edge selection

$AC_MEAS_TOOL_MASK

Tool settings

$AC_MEAS_TYPE

Measuring type

$AC_MEAS_INPUT

Measurement input parameters

Table of all the output values

Identifier

Meaning

$A_PROBE[1,2]

Probe status

$A_PROBE_LIMITED[1,2]

Measuring velocity exceeded

$AC_MEA[1,2]

Probe has responded

$AA_MM

Acquired probe position (MCS)

$AA_MM1...4

Probe position 1st to 4th trigger event (MCS)

$AA_MW

Acquired probe position (WCS)

$AA_MW1...4

Probe position 1st to 4th trigger event (WCS)

Extended Functions

616

Function Manual, 12/2018, A5E40874029B AB

M5: Measurement

9.8 Data lists

Identifier

Meaning

$AC_MEAS_FRAME

Result frame

$AC_MEAS_WP_ANGLE

Calculated workpiece position angle

$AC_MEAS_CORNER_ANGLE

Calculated angle of intersection

$AC_MEAS_DIAMETER

Calculated diameter

$AC_MEAS_TOOL_LENGTH

Calculated tool length

$AC_MEAS_RESULTS

Measurement results (depending on measurement type)

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

617

N3: Software cams, position switching cycles - only 840D sl

10.2 Cam signals and cam positions

Linear axes

The switching edges of the cam signals are generated as a function of the axis traversing

direction:

● The minus cam signal switches from 1 to 0 when the axis traverses the minus cam in the

positive axis direction.

● The plus cam signal switches from 0 to 1 when the axis traverses the plus cam in the positive

direction.

0DFKLQH D[LV>P@

0DFKLQH

FDP SRVLWLRQ

FDP SRVLWLRQ

0DFKLQH D[LV>Q@

]HUR

PLQXV FDP

SOXV FDP

>PP LQFK@

3OXV FDP VLJQDO

0LQXV FDP VLJQDO

&DP UDQJH

&DP UDQJH

PLQXV

SOXV

Figure 10-1

Software cams for linear axis (minus cam < plus cam)

Note

If the axis is positioned exactly at the output cam position (plus or minus), the defined output

flickers. If the axis moves one increment further, the output becomes a definite zero or one.

Flickering of the actual position causes the signals to flicker in this manner.

The actual position is evaluated.

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

621

N3: Software cams, position switching cycles - only 840D sl

10.2 Cam signals and cam positions

0DFKLQH D[LV>P@

0DFKLQH

FDP SRVLWLRQ

FDP SRVLWLRQ

0DFKLQH D[LV>Q@

]HUR

SOXV FDP

PLQXV FDP

>PP LQFK@

3OXV FDP VLJQDO

0LQXV FDP VLJQDO

&DP UDQJH

&DP UDQJH

PLQXV

SOXV

Figure 10-2

Software cams for linear axis (plus cam < minus cam)

Extended Functions

622

Function Manual, 12/2018, A5E40874029B AB

N3: Software cams, position switching cycles - only 840D sl

10.2 Cam signals and cam positions

Modulo rotary axes

The switching edges of the cam signals are generated as a function of the rotary axis traversing

direction:

● The plus cam signal switches from 0 to 1 when the axis traverses the minus cam in a positive

axis direction and from 1 back to 0 when it traverses the plus cam.

● The minus cam signal changes level in response to every positive edge of the plus cam

signal.

Note

The described response of the plus cam applies on conditionthat:

plus cam - minus cam < 180 degrees

r

0DFKLQH D[LV>P@

0LQXV

3OXV

0LQXV

3OXV

FDP

FDP

FDP

FDP

0DFKLQH

r

r

r

r

r

r

0DFKLQH D[LV>Q@

]HUR

PRGXOR URWDU\

D[LV >GHJUHHV@

3OXV FDP

VLJQDO

0LQXV FDP

VLJQDO

Figure 10-3

Software cams for modulo rotary axis (plus cam - minus cam < 180 degrees)

The signal change of the minus cam makes it possible to detect traversal of the cam even if

the cam range is set so small that the PLC cannot detect it reliably.

Both cam signals can be output to the PLC and to the NC I/O. Separate output of the plus and

minus cam signals makes it easy to detect whether the axis is within or outside the plus or

minus cam range.

If this condition (plus cam - minus cam < 180 degrees) is not fulfilled or if the minus cam is set

to a greater value than the plus cam, then the response of the plus cam signal is inverted. The

response of the minus cam signal remains unchanged.

Extended Functions

Function Manual, 12/2018, A5E40874029B AB

623

N3: Software cams, position switching cycles - only 840D sl

10.2 Cam signals and cam positions

0DFKLQH D[LV>P@

!

r

0LQXV

3OXV

0LQXV

3OXV

FDP

FDP

FDP

FDP

r

r

r

r

r

r

0DFKLQH D[LV>Q@

0DFKLQH

]HUR

PRGXOR URWDU\

D[LV >GHJUHHV@

3OXV

FDP VLJQDO

0LQXV

FDP VLJQDO

Figure 10-4

Software cams for modulo rotary axis (plus cam - minus cam > 180 degrees)

10.2.2

Generation of cam signals with gated output

The plus and minus cam output signals are gated in the case of:

● timer-controlled cam signal output to the four onboard outputs on the NCU

● Output to the NCK I/O, if the 2nd byte in the following machine data was not specified (=

"0"):

MD10470 SW_CAM_ASSIGN_FASTOUT_2

MD10473 SW_CAM_ASSIGN_FASTOUT_4

Extended Functions

624

Function Manual, 12/2018, A5E40874029B AB

Content      ..     37      38      39      40     ..