Thanks. That is pretty much my plan once I am able to read the UDT using ignition.
I have updated Ignition and I am still unable to read UDTs or structs as a document datatype. I can read arrays. I tested the setup again, this time with the OPC UA client from UaExpert. I can read and write UDTs, arrays and struct data types on the S7-1200.
Any idea why ignition doesn’t seem to be working?
See last post here. Another user confirms that the S7-1200 OPC UA server on V4.5 firmware works with UDTs.
S7-1200 OPC UA problem - Entries - Forum - Industry Support - Siemens