I am new to Ignition, so please bear with me.
I am talking to a device over Modbus TCP. I connect to it fine, and even able to read HR, IR, and C registers just fine. I am having issues reading the DI registers however. I am getting Received response with ExceptionCode: 0x03 (IllegalDataValue).
I am not sure what the issue is. The tags I created are Boolean (I did try over types just to see if it had an effect). The addressing (from the manual) is [MBDevice]DI1 (one of the tags)
I also tried [MBDevice]DI1.0
I must be missing something simple here.