Array through OFS

Define the address of your Variable Tag in Citect as <PLC tag name>!A[<array size>]. For example: "TestTag!A[10]" for an array that uses index 0 to 9. The array in the PLC always has to start with index 0.
For more information see the OFSOPC driver help in Citect.

How to access a tag on a mnemonic diagram?

I'm sorry but I don't know what you mean with "mnemonic diagram".

This is an incorrect translation. I meant the graphic page.

On pages just use the syntax like you mentioned. In my example that would be: TestTag[0], TestTag[1], etc..

Thanks. Everything works.