OMRON NB-Designer OPERATION MANUAL (NB-series, 2020)

3 Functions of NB-Designer

General-purpose PLC Control (Expansion)

General PLC Control (Extend) is similar to General PLC Control, but the occupied address is

different, i.e. General PLC Control occupies 4 words while General PLC Control (Extend)

occupies 6 words (extending “word” to “double-word”). Refer to the section of General-purpose

PLC Control for the details.

The method is as follows:

(1) Read Address: Similar to General-purpose PLC Control.

(2) Read Address + 1: Similar to General-purpose PLC Control.

(3) Read Address + 2: Refers to the address offset of the data memory of PLC during the

transmission and it occupies 2 words. Please note that this offset is specified from the

address memory with “Read Address + 6”.

(4) Read Address + 4: Refers to 2 words occupation.

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3-9

Macro Function

Macro is the function allows the user to create and execute the simple and original programs.

The user can add the functions such a arithmetical operations or discriminant of the conditions which

are not be supported by the basic functions of the NB-Designer. Using the Macro function, the user also

convert the display processing in the screen or the data processing used to be performed in the PLC.

This function allows the PC loading reduced. The Macro of the NB-Designer conforms to C Language

(ANSI C89).

3-9-1

Create a Simple Macro Program

This section provides a brief of the Macro variables.

The Macro variables are classified into two types such as internal variables and external variables.

• Internal variables: The variables are available only within the Macro Program. The internal variables

can be defined in the [Macro Variable Table] or the [Macro Editing Window].

• External variables: The variables are to read and write the values with the external controllers. The

external variables are necessary to be defined in the [Macro Variable Table] in

advance. The defined external variables can be used in the [Macro Editing Win-

dow].

Storage Format of the variables used in the [Macro Variables Table]

Storage Format

Data length

Descriptions

Bit

1bit

Bit variable with 2 statuses of 0 and 1.

Signed short

1 word (16 bits)

Signed short-integer variable with a range of -32768 to 32767.

Unsigned short

1 word (16 bits)

Unsigned short-integer variable with a range of 0 to 65535.

Signed int

2 word (32 bits)

Signed-integer variable with a range of -2147483648 to

2147483647.

Unsigned int

2 word (32 bits)

Unsigned-integer variable with a range of 0 to 4294967295.

Float

2 word (32 bits)

Single-precision floating-point variable with a range of

-3.4E+38 to +3.4E38

Double

4 word (64 bits)

Double-precision floating-point variable with a range of

-1.79E+308 to +1.79E+308

Read/Write type of Macrocode Variable

Read/Write Type

Descriptions

Read

The values of Macro are read before being executed, and reading operation is not

performed during Macrocode execution.

Write

The values of Macro are written to the specified variable at one time after being

executed, and writing operation is not performed during Macrocode execution.

Read/Write

The values of Macro are read before being executed, and written after being executed.

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Storage Format used in Macro Variable

Data Type

Data length

Descriptions

Bool

1bit

Bit variable with 2 statuses of 0 and 1.

(Signed) char

1byte(8bit)

Signed short-integer variable with a range of -128 to 127.

Unsigned char

1byte(8bit)

Unsigned short-integer variable with a range of 0 to 255.

(Signed) short

1word (16bits)

Signed short-integer variable with a range of -32768 to 32767.

Unsigned short

1word (16bits)

Unsigned short-integer variable with a range of 0 to 65535.

(Signed) int

2word (32bits)

Signed-integer variable with a range of -2147483648 to

2147483647.

Unsigned int

2word (32bits)

Unsigned-integer variable with a range of 0 to 4294967295.

Float

2word (32bits)

Single-precision floating-point variable with a range of

-3.4E+38 to +3.4E38

Double

4word (64bits)

Double-precision floating-point variable with a range of

-1.79E+308 to +1.79E+308

Create a Macro program with basic arithmetical function in the following figure.

Read 2 signed data from LW0 and LW1, make LW0 divided by LW1, then place the result of the

division in the 4 words from LW2 to LW5.

Press the

(Add Macro) icon in the database toolbar, or click [Macro] in the [Option] menu, then the

following dialog box will pop up.

Select the PT No. and input the file name, then click “OK” to enter the Macro Editing Window (i.e.

[macro_0.c]), as shown below.

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Before writing the Macro, please predefine the I/O variables.

Right-click the mouse in the “Macro Variable Table [macro_0.c]” window to make the following menu

pop up.

Select “Add Variable” to make the following dialog box pop up.

Firstly specify the variable name.

There are 3 kinds of variables - Read variable, Write variable and Read/Write variable. Read variable

means Macro will obtain the value of the variable from the specified address; Write variable means the

result after the Macro executed will be written into the specified address and Read/Write variable

incorporates the features of the Read variable and the Write variable. Therefore, Read, Write and

Read/Write are the 3 different variables for the same address. It is recommended to use _R, _W and

_RW to differentiate the variables when you specify their names.

In the following example, LW0 and LW1 are Read variables and LW2 is Write variable, so we name

them as follows:

LW0_R, LW1_R, and LW2_W. Please note that the regulations for the variable names are consistent

with that for C language, and the special attention must be paid to the following points:

(1) The variable name is case-sensitive;

(2) The variable name can’t be the number or begin with the number or include some special

characters such as space, slashes etc.

(3) The variable name can’t be any reserved words of C language.

(4) Specify the array length in the range from 2 to 1024. The array length of the value in unsigned

short type cannot be specified to 4. The array length of the value in int type or float type cannot be

specified to 2. (The specification of the function is different from the one of the standard C

language)

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In the example below, the Properties of LW0_R are set as follows:

Here, specify “signed int.” from “Storage Format”, “Read” from “R/W”, “LW” from “Area” and “0” from

“Address” respectively. After the specification, click the “OK” button, then this variable will be seen in

“Macro Variable Table [macro_0.c]” window.

Note The variables used in the Macro are necessary to be registered to the [Macro Variables Table] in advance.

Specify LW1_R and make its address to LW1, then set the address of LW2_W to LW2 by the same

method.

Note When the Storage Format is set to “double”, the Word Length will automatically become 4, i.e. this variable

will occupy LW2 to LW5.

After the completion of setup, the “Macro Variable Table [macro_0.c]” window is shown as below:

After defining the variables, we should write the following Macro:

int MacroEntry()

{

//LW0 is divided by LW1and LW2 is obtained

LW2_W=LW0_R/LW1_R;

return 0;

}

Once it is saved, the simple Macro is completed. At this time, go to the Edit Window to make the

editions as shown below:

Place 2 Number Input components corresponding to LW0 and LW1 respectively;

Place 1 text component and enter “/” to represent division.

Place 1 Number Display component corresponding to LW2, and set the Storage Format to “double” (i.e.

double-precision floating-point) and both the Integer and Decimal to “4”;

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Place 1 Function Key to execute Macro, and select “macro_0.c” in the drop-down menu as below and

input “=” in the label:

The Edit Window is displayed as follows.

Perform the offline test, input 5 into LW0 and 2 into LW1, and you will see the result as shown below:

The result should be 2.5000 instead of 2.0000.

LW0_R and LW1_R are [signed short] so that the division of one variable by another variable both in

integer type results in the variable also in integer type. In order to resolve this problem, the variable to

perform the division is necessary to be casted in [double] as follows.

LW2_W = (double)(LW0_R)/LW1_R;

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After editing the Macro in the procedure as the above, perform the test again. Then the result as follows

should be out.

Now the basic specification is completed. However, the Macro still have a problem. When entering “0”

into LW1 and executing the Macro, an error occurs and the error can affect the normal operation of the

system. In this case, a check should be entered into the operand.

Change the codes shown as below.

int MacroEntry()

{

//Judge whether LW1 is 0 or not in order to prevent “Divide-by-zero overflow” ;

if (LW1_R!=0)

//LW0 divides LW1and LW2 is obtained

LW2_W = (double)(LW0_R)/LW1_R;

return 0;

}

Execute it again. If the divisor is 0, the Macro will not execute division. Therefore, the program safety

will be improved.

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z Macro Optimization

Create the new Macro with the optional name (test.c). A brief provides of the Macro using the array

variables. The array variables can be defined only for the one-dimensional array.

For example:

Create one array variable with the length of 8. The definition of variable is shown as below.

(1) Place 8 Number Display components LW0 to LW7 with the consecutive addresses in Frame 0, and

make the timer to execute “test.c”.

(2) Perform the test, and the values displayed in Number Display components are same as the values

assigned in the Macro.

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3-9-2

Macro and Specification of Operation with Read/Write Variables

In this part, we will provide the description about specification of the operating Macro, and we will also

provide the description that should be noted when you use Macro.

The Macro can be regarded as a black box for input and output. Taking the example of the division

program which was mentioned in the first part of this section, the flow of the procession is as follows:

Macro

Read variable

int MacroEntry()

Write variable

(Read only)

{

(Write only)

LW0_R

If(LW1_R!=0)

LW2_W

LW1_R

LW2_W=(double)(LW0_R)/LW1_R,

Return 0;

}

The specification of the operation is as follows: Before the program is executed, the value from the

memory for LW0 and LW1 will be assigned to Read variables LW0_R and LW1_R, then Macro will be

executed. Later, after Macro function returns, the value of variable LW2_W will be written into LW2.

Therefore, the variables of the Macro performs like the copy of the memory and even if the variables

are modified, the value of the memory is not be changed.

Note 1

Since the read variables do not read the memory value during executing the Macro, the read value remain

the same as the one when the Macro read during operating. Even if the memory value is modified from the

external device during the Macro executing, result of the operation is not be affected.

Even if the memory value is written with a value from the external device during the Macro executing, the

memory value will be updated to the result of the execution of the Macro after the Macro completed.

The read variable is read only and the write value is write only. Therefore, writing the value to the read

variable or reading the writing variable by using the Macro are not impossible. Similarly, when one address

is used for reading and writing at the same time, use two different names by contrast for the variables such

as LW0_R and LW0_W for LW0.

The global variables or the static variables are not available in the Macro. If the data should be retained

using the global variables, use the PT internal memories such as LW or LB.

The values which output the result of the Macro should be prepared.

The description of the other functions are provided as follows.

(a) Modify or delete the variable in Macro.

Open the [Project File Window] and double-click the Macro file corresponded to open the [Macro

Variables Table] dialog box. Right-click the variable to select [Delete variable] or [Modify Variable].

Right-click the variable

to select [Delete variable]

or [Modify Variable]

Please be careful because the deleted variables can’t be restored.

(b) Delete the whole Macro file.

Open the Project File Window, press “Delete” key after selecting the corresponding Macro file.

Select and press

“Delete” key.

Please be careful because the deleted Macro files can’t be restored.

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3-9-3

Macro Triggering

There are many flexible methods for triggering Macro. Using the triggering methods for Macro flexibly

can realize more flexible and powerful functions conveniently.

NB-Designer currently supports the following methods for triggering Macro:

Macro when loading project

Check the “Use Macro when loading project” check box in the “PT Extended Properties” tab.

Function Key

Using “Execute Macro” function of Function Key to trigger the Macro is a kind of common

triggering method.

Timer

Executing the [Execute Macro] function by the Timer function allows the combination of the

Macro and the Timer function.

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After the Macro creation, you can rename the Macro.

Right-click the Macro name, and you can see the options of [Rename Macro] and [Delete], and

input the new name after the dialog box pops up after clicking “Rename Macro”.

It supports the direct access to the local address of the PT without defining the variables.

As shown above, even if no variables are defined in the Macro, the direct access to the local

address of the PT, i.e. reading or writing the local address.

int ReadLocal(const char *type, int addr, int nRegs, void *buf, int flag);

int WriteLocal(const char *type, int addr, int nRegs, void *buf, int flag);

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“nRegs” refers to number of words. That’s to say, the program will read 2-word data beginning

from LW200 and then write 2 words to LW202. In order to confirm this code segment will be

executed successfully, you should place 4 Number Input components and 1 Function Key to

execute the Macro in the Edit window, as shown below:

Macro

Perform the offline test:

Make LW200=1 and LW201=2, then click the [Macro] button, and you will find LW202=1 and

LW203=2. The Macro is executed normally.

Macro

[Import variable/Export variable] functions are provided for user to copy Macro variables and

Macro.

Right-click “Macro Variable Table [directaccesslocaladdr.c]”, you will see the [Import variables]

option; and you will see the [Export variables] option is also valid after you have created a new

variable.

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Supports Direct Drawing in the Screen (Description of PT Drawing Function)

The Macro executing function allows the user to call drawing function.

Drawing functions adopt rectangular coordinate system of screen: point of origin locates in the

upper-left corner, and the X-axis extends rightward while the Y-axis extends downward.

(1) Definition of Struct

Add 3 structs: PenParam, BrushParam and Point.

(a) Pen structure “PenParam”

typedef struct penparam

{

short type;

short width;

int color;

}PenParam;

PenParam is mainly used to set the type, width and the color Properties of the pen.

And the value range is as follows.

Parameter Name

Value

Descriptions

Type (Pen type)

PS_NULL

No pen

PS_SOLID

Smooth line (

)

PS_DASH

Dash line (

)

PS_DOT

Dot line (

)

PS_DASHDOT

Dash-dotted line (

)

PS_DASHDOTDOT

Dot-dotted line (

)

Width (Pen Size)

1~8 (Unit: pixel)

If the input value is less than the minimum value 1 or greater

than the maximum value 8, the system will automatically set it

to the minimum value or the maximum value respectively.

Color (Pen Color)

0~65535

It is recommended to use Macro RGB (r. g. b) to set the color,

and the range for r, g and b is 0~255. The system will convert

the value of RGB (r, g, b) according to the color parameters of

PT screen.

(b) Brush Structure “BrushParam”

typedef struct brushparam

{

int type;

int foreColor;

int backColor;

}BrushParam;

BrushParam is mainly used to set the type of the brush, the foreground color and

background color. Brush type is mainly used to set the filling styles used by the brush:

graphics-filling and gradient-filling. And the value range is as follows.

Parameter Name

Value

Descriptions

Type (Brush type)

BFS_NOBRUSH

No filling

BFS_SOLID

BFS_DENSE1

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Parameter Name

Value

Descriptions

BFS_CONGRDT_FLD

TRT

BFS_CENGRDT_FETC

BFS_CENGRDT_FCTE

ForeColor

0~65535

It is recommended to use Macro RGB (r. g. b) to set the color, and

(Pattern color)

the range for r, g and b is 0~255. The system will convert the value

of RGB (r, g, b) according to the color parameters of PT screen.

BackColor

0~65535

It is recommended to use Macro RGB (r. g. b) to set the color, and

(Background color)

the range for r, g and b is 0~255. The system will convert the value

of RGB (r, g, b) according to the color parameters of PT screen.

The parameter of point structure is simpler: x represents the X-axis coordinate and y

represents the Y-axis coordinate for the point.

Additional Information

To specify the color with a RGB function, you need to specify r and b as a multiples of 8, and

specify g as a multiples of 4. The remainder will be rounded down.

If you specify 0 for r, g, and b, the transparent color is specified. To draw a black line, you need

to specify the value except 0 as you do for RGB (8, 0, 0).

(1) Drawing Function

(a) Rectangle “DrawRect (x, y, w, h, pen, brh)”

The description of the parameter is as follows:

Parameter

Type

Descriptions

Int.

X-axis coordinate of the upper-left corner of the rectangle (Unit: pixel)

Int.

Y-axis coordinate of the upper-left corner of the rectangle (Unit: pixel)

Int.

Rectangle width (Unit: pixel)

Int.

Rectangle height (Unit: pixel)

pen

PenParam

Rectangular-border pen

brh

BrushParam

Rectangular filling brush

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(b)

Rounded Rectangle “DrawRndRect (x, y, w, h, radius, pen, brh)”

The description of the parameter is as follows:

Parameter

Type

Descriptions

Int.

X-axis coordinate of the upper-left corner of the rectangle (Unit: pixel)

Int.

Y-axis coordinate of the upper-left corner of the rectangle (Unit: pixel)

Int.

Rectangle width (Unit: pixel)

Int.

Rectangle height (Unit: pixel)

radius

Int.

Rounded radius (Unit: pixel)

pen

PenParam

Rounded-rectangle-border brush

brh

BrushParam

Rounded-rectangle filling brush

(c)

Ellipse “DrawEclips (x, y, w, h, pen, brh)”

The description of the parameter is as follows:

Parameter

Type

Descriptions

Int.

X-axis coordinate of the upper-left corner of the circumscribed rectangle of ellipse (Unit: pixel)

Int.

Y-axis coordinate of the upper-left corner of the circumscribed rectangle of ellipse (Unit: pixel)

Int.

Width of the circumscribed rectangle of ellipse (Unit: pixel)

Int.

Height of the circumscribed rectangle of ellipse (Unit: pixel)

pen

PenParam

Ellipse-border pen

brh

BrushParam

Ellipse-filling brush

(d)

Line “DrawLine (x1, y1, x2, y2, pen)”

The description of the parameter is as follows:

Parameter

Type

Descriptions

Int.

X-axis coordinate of line origin (Unit: pixel)

Int.

Y-axis coordinate of line origin (Unit: pixel)

Int.

X-axis coordinate of line end (Unit: pixel)

Int.

Y-axis coordinate of line end (Unit: pixel)

pen

PenParam

Line brush

(e)

Polygon “DrawPolyg (pts, n, pen, brh)”

The description of the parameter is as follows:

Parameter

Type

Descriptions

pts

Point *

The first address of vertex-coordinate data for polygon

Int.

Vertex data of the polygon

pen

PenParam

Polygon-border pen

brh

BrushParam

Polygon-filling brush

(f)

Arc “DrawArc (x, y, w, h, start, end, pen)”

The description of the parameter is as follows:

Parameter

Type

Descriptions

Int.

X-axis coordinate of the upper-left corner of the circumscribed rectangle of arc (Unit: pixel)

Int.

Y-axis coordinate of the upper-left corner of the circumscribed rectangle of arc (Unit: pixel)

Int.

Width of the circumscribed rectangle of arc (Unit: pixel)

Int.

Height of the circumscribed rectangle of arc (Unit: pixel)

start

Int.

The starting angle of the arc (Unit: degree)

end

Int.

The end angle of the arc (Unit: degree)

pen

PenParam

Arc-border pen

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(g)

Sector “DrawPie (x, y, w, h, start, end, pen, brh)”

The description of the parameter is as follows:

Parameter

Type

Descriptions

Int.

X-axis coordinate of the upper-left corner of the circumscribed rectangle

of sector (Unit: pixel)

Int.

Y-axis coordinate of the upper-left corner of the circumscribed rectangle

of sector (Unit: pixel)

Int.

Width of the circumscribed rectangle of sector (Unit: pixel)

Int.

Height of the circumscribed rectangle of sector (Unit: pixel)

start

Int.

The starting angle of the sector (Unit: degree)

end

Int.

The end angle of the sector (Unit: degree)

pen

PenParam

Sector-border pen

brh

BrushParam

Sector-filling brush

For the drawing functions, RGB values can be used directly for the colors.

For the corresponding relationship between 65536 Color and RGB, the system will handle it directly.

int MacroEntry()

{

PenParam pen;

BrushParam brh;

Point pts[5];

short buf[2] = {0};

pts[0].x = 0;

pts[0].y = 0;

pts[1].x = 100;

pts[1].y = 0;

pts[2].x = 120;

pts[2].y = 150;

pen.type = 1;

pen.width = 0;

pen.color = RGB(0, 0, 0xFF);

brh.type = BFS_ODWNGRDT_FRTTLD;

brh.foreColor = RGB(0, 0, 0);

brh.backColor = RGB(255, 255, 255);

DrawRect(0, 0, 400, 400, pen, brh);

}

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Example of how to use the local variable functions

When the Macro is created as below, the variables read from the value LB100 and LB101 (in

the PT local memory) are written to LB102 and LB103 (in the PT local memory).

The codes are compiled as follows:

Where,

The “buf” is defined as “_Bool”, and it can also be defined as “short” because each bit address

in local LB memories occupies one-word (16 bit) space (but in fact only one bit in each word is

used.)

ReadLocal(“LB”, 100, 2, (void*)buf, 0) indicates that the values read from LB100 and LB101

are written to buf[0] and buf[1], respectively. “2” located in the center of the parenthesis

indicates the number of bit that the LB100 reads.

WriteLocal (“LB”, 102, 2, (void*)buf, 0) indicates that writes the read values to LB102 and

LB103, respectively.

Firstly, add 2 Bit Switch components with addresses of LB100 and LB101, and then add 2 Bit

Lamp components with addresses of LB102 and LB103. Finally, add a Function Key to execute

the Macro.

After the Save and Compile operations are performed, then execute the Macro:

After the LB100 and LB101 are turned ON, when the Macro is executed, you can see the

LB102 and LB103 are turned ON.

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Available standard functions

Following standard functions of C language is available. Refer to a commercial handbook of C

language for the details.

sin (double)

cos (double)

tan (double)

sinh (double)

cosh (double)

tanh (double)

asin (double)

acos (double)

atan (double)

atan2 (double, double)

exp (double)

log (double)

log10 (double)

pow (double, double)

sqrt (double)

ceil (double)

floor (double)

fabs (double)

ldexp (double, int)

frexp (double, int*)

modf (double, double*)

fmod (double, double)

isgreater(x, y)

isgreaterequal(x, y)

isless(x, y)

islessequal(x, y)

islessgreater(x, y)

isunordered(x, y)

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3-10 System Parameters

Specifications related to the NB units are performed in the PT Property.

The PT Property can specify the procedure to display the PT screens and the system specifications of

the PT units as well as the communications settings.

Double-clicking PT in Configuration and Setup Window can make system parameter dialog box pop up.

There are 11 tabs related to the communication: [PT], [Task Bar], [PT Extended Properties], [System

Information Setting], [User Permission Setting], [Security Level Setting], [Event History Setting], [Print

Setting], [COM1 Setting], [COM2 Setting], and [External Memory]. They will be described in the later

one by one.

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3-10-1

Network Setting: Refers to the network information such as IP Address, Subnet Mask, Default

Gateway and Display Setting etc.

Display Setting: Refers to the current display of PT (Horizontal or Vertical). Horizontal/Vertical display

is selected at dragging PT, once it is selected, it will not be switched again.

Enable VNC: Check the check box to enable VNC server function. VNC server status can be checked

by LB9290. Monitor mode and operation mode can be enabled/disabled by LB9291 -

LB9293.

Monitor Mode Password / Operation Mode Password:

For VNC server function, a password setting is required for monitor mode and operation

mode, respectively. The default is 888888. The password only supports the number

instead of the other characters. The password ranges from 0 to 4294967295.

Enable Multi Access: Check the check box to enable simultaneous multi client access. Simultaneous

access from multiple clients will deteriorate the performance of the NB. As a

preventive measure, check the load status on the processing and adjust the

load within the appropriate range when you use this option.

Enable FTP: Check the check box to enable FTP server function. For FTP server function, a password

setting is required. The default is 888888. The password only supports the number

instead of the other characters. The password ranges from 0 to 99999999.

Whether FTP server is enabled or disabled can be checked by LB9296.

Save Screen Shots to External Memory: Check the check box to save screen shots to the external

memory.

Description: Refers to the description for this PT. And the description will be displayed in PT

description box at the downloading and test etc., thus making the differentiation among

several PTs conveniently.

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3-10-2

Task Bar

Menu Button

Alarm Indicator

Task Bar Button

Touch Indicator

CPU Indicator

Display Task Bar: Determines whether to display the task bar or not. If the “Display Task Bar” is

selected, the task bar as shown above will be displayed at the bottom of the screen.

Display Touch Indicator: When the screen is touched, the touch indicator will change the color. If the

“Display Touch Indicator” is checked, the touch indicator will be displayed at

the right side of the task bar, as shown above. (The touch indicator is

expressed by “T” in simulator and the PT.)

Display CPU Indicator: CPU Indicator is a Level Meter showing the usage condition of CPU in

percentage form. If “Display CPU Indicator” is checked, CPU Indicator will be

displayed at the right side of the task bar, as shown above. (The CPU

Indicator is expressed by “P” in simulator and the PT.)

Display Alarm Indicator: Alarm Indicator is a Level Meter showing the ratio of the current alarm

numbers to the total alarm numbers logged in the alarm information. If

“Display Alarm Indicator” is checked, Alarm Indicator will be displayed at the

right side of the task bar, as shown above. (The alarm indicating lamp is

expressed by “A” in simulator and the PT.)

The Alarm Indicator is the bar to display the number in percentage which

divides the total number of the alarm the registered to Alarm Settings with

the number of the alarm currently occurring.

Display Menu Button: After this option is checked, you can use the Menu Screen. If this option isn't

checked, the Menu Screen will not pop up.

Only Show Menu Button: After this option is checked, only the Menu Screen button is displayed in the

task bar.

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OMRON NB-Designer OPERATION MANUAL (NB-series, 2020) - page 11