Hello Everyone,
I want to use Input or Memory address as array and then want to read in Program.
For e.g, %MW512, % MW514, % MW516..
I want to read as following
%MW(variable_Name) and Variable name to be increased by 2 in each cycle and read values of memory and write to some different temporary array.

Is this possible?

Originally created by: scott_cunningham

You can do this:

PROGRAM PLC_PRG
VAR
   Word1 AT %MW0 : WORD;
   Word2 AT %MW1 : WORD;
   Words AT %MW0 : ARRAY[0..1] OF WORD;
   Pass : BOOL;
END_VAR
Word1 := 12345;
Word2 := 32109;
Pass := (Words[0] = Word1) AND (Words[1] = Word2);

Pass goes true.

But be careful about direct memory access - when I changed removed the forced memory location on Word1 and Word2 - then Pass was false (i.e. who knows where the compiler put the variables!). Also, I believe the memory locations may be hardware dependent, too.