I have seen one post inferring that the Siemen’s S7 driver in Ignition does NOT support accessing data in arrays in these PLCs. Is this true?
I’m being given a listing of a Boolean Array in a 1500 PLC and doing some testing I have not been able to get tag data to populate. I’m not clear on how to address these if it is possible. I have tried using an OPC Item Path similiar to the following examples with no success:
ns=1;s=[PLC]DB210,X0.0
ns=1;s=[PLC]DB210,W0.0
In both cases I’m just trying to read the first bit in the array.
The first assumes that the Boolen Array would be a Bit data type.
The second assumes the array is an 8 bit word array.
Is this even possible or am I spinning my wheels even trying?
Thanks,
Mike