In SCL for the name of a function you can use a symbolic name or the number of the fc that will have to be used in the simatic block folder.
With the last choice you are sure that in the block folder the function will have the number you have chosen in the SCL-code, but in the SCL code you have then no symbolic name. In the block folder however you can add a symbolic name to the function but this is extra work
With the first choice you have a symbolic name in SCL the compiler takes the first free function number for the function in the block folder, but this number is mostly not what you wanted.
Is there a way to specify in SCL directly a symbolic name and an absolute adres of a function, so the function in the block folder immediately has the requested function number and symbolic name?

Dear smiffy

I have tested your suggestion ,It is working , I defined a symbolic name for a
function and call the symbol instead of absolute address.I changed the
FC number in symbol and different functionality as expected.I think this is
also applicable to STL.

This is advantage of using a complete symbol table (as recommended) before
starting SCL programming.

regards

Smiffy, of course it works.:^)

As i understood the problem lies here in starting post "you can add a symbolic name to the function but this is extra work".

So the question is reasonable - can you "explain" SCL something like

FUNCTION FC1: VOID

Symbol : "ABC"

to make SCL create row in Symbols list like

Address FC1 Type FC1 Name ABC

Also thread starter points out, that there is auto numbering feature in SCL(actually it's for PCS7 projects as i think). So SCL CAN influence Symbols.