Hi all

Is there any way to create void pointers in codesys?

and need info about writing code in visual c++ & converting it to codesys library.

Thanks
sarath

Pointer to any DATA type this is what is required.Is it possible in codesys?

Thanks

Regularly and traditionally it's POINTER TO BYTE, it can be interchanged without conversion to POINTER TO *.
However, in some cases this might lead to memory alignment problems... for example, ODD pointer to byte should not be used as pointer to word.
As for CODESYS V3 , POINTER TO ANY seems to work.

Hi Strucc

Thanks for your info.

type st_recipe
test:bool;
test1:lreal;
end_type
function_block tester
var
pt:pointer to array [1..250] of dword;
xmlvalue:string;
end_var
pt:=adr(st_recipe);
pt^[i]:=string_to_dword(xmlvalue);

Is it possible to have a pointer like this inspite of any data type

Thanks

yes that is possible, however why should you use pointers, as everything can be programmed in 61131 standard language.
when using pointers it is same as use peek and poke, very machine dependent.
whenever possible try to avoid it.

Strucc hat geschrieben:
Regularly and traditionally it's POINTER TO BYTE, it can be interchanged without conversion to POINTER TO *.
However, in some cases this might lead to memory alignment problems... for example, ODD pointer to byte should not be used as pointer to word.
As for CODESYS V3 , POINTER TO ANY seems to work.

Thanks Strucc

Used your idea

Sarath