Attribute: call_after_global_init_slot Important VAR_INPUT declarations in functions or methods that use the attribute lead to compile errors. Reason: Input variables are unknown in this case at the t

Attribute: call_after_online_change_slot Important VAR_INPUT declarations in functions or methods that use the attribute lead to compile errors. The reason is that in this case the input variables are

Attribute: call_before_global_exit_slot Important VAR_INPUT declarations in functions or methods that use the attribute lead to compile errors. Reason: Input variables are unknown in this case at the

Region Pragma The pragma is used to combine multiple lines in a text editor to a block. The block can be named. Region pragmas can also be nested. Code with region pragma: Expanded and collapsed views

Identifier Designation Rules and recommendations for the identifier designation for variables, constants, functions, function blocks, methods, and other objects :

Recommendations :

For Variables in CODESYS V3 Libraries Identifier designation recommendation for Description Example Variable Corresponds to the description for variable names, with the exception that global variables

For Custom Data Types in CODESYS V3 Libraries Identifier designation recommendation for Description Example DUTs in CODESYS V3 libraries The namespace replaces the need for the library prefix. Therefo

For POUs Identifier designation recommendation for Description Example Functions, function blocks, programs Library prefix followed by an underscore and a short, informative POU name Like for variable

For POUs in CODESYS V3 Libraries Identifier designation recommendation for Description Example POU The library prefix is omitted because the namespace replaces the function of the library prefix. FUNC