Codesys Mapping I/O with Array

Hey everyone,

Does anyone know an easy method to map IO with an Array without having to manually enter all of them one by one? I am trying to map IO BYTEs with an array of SINTs but I do not know if its possible to do that without having to enter them one by one.

Thanks in advance

I dont know about array but if you want to speed it up you can create a global variable list where you write something like this:
That way you can bulk create it in a spread sheet program and pastenit into the global variable list. Im pretty sure that is the syntax, feel free to correct me or by checking the codesys help.

Hello sameer.bhaskarla:
We discussed this issue in a previous post. As you can see from post in link below, what you need to do is possible. it is in agreement with ojz0r's post above.
http://www.plctalk.net/qanda/showpost.php?p=871389&postcount=14

Thank you ojz0r and AlfredoQuintero for your responses. I have seen this post before where you can define in the tag itself for the IO it should be mapped to. But unfortunately I could not find a way to map an array of BYTE to an array of IO (BYTES) in one go. The way you have described is to map one array to one object which I can by defining it as:

yourVariableName AT %IBX: yourDUT;

But I need to map an array of object to an array of object (for example a SINT or BYTE), please correct my syntax

yourVariableName AT [%IB408...%IB425] : ARRAY [0...17] OF BYTE;
(In the above example %IB408 to %IB425 are of type BYTE)

The above line gives the following error :
[ERROR] PLC: Panasonic_Robot [Device: PLC Logic: Application](Line 5): C0030: Direct address expected after AT instead of [

Would really appreciate if someone could help me on this

Thanks!

Maybe if you describe your purpose there might be another solution?


Do you really need the direct I/O in an array or would a copy suffice with a move instruction?

yourVariableName AT [%IB408...%IB425] : ARRAY [0...17] OF BYTE;

Click to expand...

This should be
The %IB408 is the starting address of the array block.

Thank you so much AustralIan, it worked perfectly.