Omron cx-programmer 5.0-function block operation Benutzerhandbuch

The following table shows the items that must be entered by the user when
defining function blocks.

Each function block definition has a name. The names can be up to 64 char-
acters long and there are no prohibited characters. The default function block
name is FunctionBlock

@, where @ is a serial number.

Number of function block definitions CS1-H/CJ1-H CPU Units:

• Suffix -CPU44H/45H/64H/65H/66H/67H: 

1,024 max. per CPU Unit

• Suffix -CPU42H/43H/63H: 128 max. per CPU 

Unit

CJ1M CPU Units:

• CJ1M-CPU11/12/13/21/22/23: 128 max. per 

CPU Unit

Number of instances

CS1-H/CJ1-H CPU Units:

• Suffix -CPU44H/45H/64H/65H/66H/67H: 

2,048 max. per CPU Unit

• Suffix -CPU42H/43H/63H: 256 max. per CPU 

Unit

CJ1M CPU Units:

CJ1M-CPU11/12/13/21/22/23: 256 max. per 
CPU Unit

Number of instance nesting levels

Nesting is not supported.

Number of I/O variables

64 variables max. per function block definition

Function block 
definition name

The name of the function block definition

Language

The programming language used in the function block defini-
tion. Select ladder programming or structured text

Variable definitions

Variable settings, such as operands and return values, 
required when the function block is executed

• Type (usage) of the variable
• Name of the variable
• Data type of the variable
• Initial value of the variable

Algorithm

Enter the programming logic in ladder or structured text.

• Enter the programming logic using variables. 
• Input constants directly without registering in variables.

Comment

Function blocks can have comments.

CLOCK PULSE

EN          ENO
(BOOL)  (BOOL)
ON_TIME
(INT)

OFF_TIME
(INT)

Function block definition name