Can I make myself a function the same way I make a procedure in RAPID programming? If yes then what is the proper syntax for it?
Here is an example of a simple function.
FUNC num abs_value(num value)
IF value<0 THEN
RETURN -value;
ELSE
RETURN value;
ENDIF
ENDFUNC
gr,
Richard
Here is an simple example.
FUNC num abs_value(num value)
IF value<0 THEN
RETURN -value;
ELSE
RETURN value;
ENDIF
ENDFUNC
gr,
Thanks, I didn’t declare the function type ![]()
Hi, Just wondering how can you make the custom functions global? Do you need to declare in a header file or something and include the header file in your main?
Regards
Kent
Hi,
all procedures, functions and data declarations are defined as global in a Task if the argument “LOCAL” is not used.
Examples for global declarations:
CONST num nMyNum:=1;
PROC MyProc()
FUNC num MyFunc()
Examples for local declarations in a module:
LOCAL CONST num nMyNum:=1;
LOCAL PROC MyProc()
LOCAL FUNC num MyFunc()
If you are using a persistant data declaration, you have the following possibilties
PERS num nMyNum:=0; (Persistant is defined as global for all tasks, in case of same declaration is available in the other tasks
LOCAL PERS num nMyNum:=0; (Persistant is only available in the module)
TASK PERS num nMyNum:=0; (Persistant is global in the current task)
Regards
Micky