arrays in gxworks2

Hello, i am trying to get access to an array using an indexing variable.
The project is a box conveyor where are 6 boxes, so i have array "box[0...5]".
I want to use variable "box_current" as an index. Is it possible to use this variable in LADDER program, i mean if i put "box[box_current]" in the label it doesnt work. Whereas when i create a function block in ST and use that kind of expresion "box[box_current]" it works perfectly.

Is there a way to use index variable straight in LADDER or do i have to do it in ST.

Many thanks in advance.

In ladder you need to use the index variables. Try using "Z0" to "Z7". I think that is what they are - it's been a while.

You also need to use the syntax like this: D200Z0. If Z0 = 0, it will resolve to D200. If Z0 = 10, it will resolve to D210.

That is very helpful, thank you!

What about the bit arrays? lets say i have bit array M100 - M106 , addresing them M100Z0 doesnt seem to work.

pharmaz0ne said:

What about the bit arrays? lets say i have bit array M100 - M106 , addresing them M100Z0 doesnt seem to work.

Click to expand...

index addressing can work only with words and double words. You need to set up logic that will extract necessary bit for you.