I've downloaded NI OPC UA to use in a project that communicates with an Allen-Bradley Micro850. Unfortunately, I can't find an example to begin getting the 2 to work with each other. The best I found was a link to a NI article "Connect LabVIEW to Any PLC Using OPC", but "NI OPC Servers 2012" is no longer available. I've installed "OPC Servers 2016" but it doesn't seem to a stand-alone window to provide access to the Micro850 PLC.
Has anyone used the OPC toolkit working with the AB PLC?
I have EthernetIP add-in installed. While I can pull specific CIP data using class, instance, and attribute values, I can't read any local or global tags using the "EthernetIP Tag Read.vi". For example, using only the address of the PLC, I'll get error -251723760, CIP Error - Extended status may be available, CIP Status: 0x5 (Invalid destination/class/instance/structure).
Using the address appended with ",1,0", returns error -251723760, CIP Error - Extended status may be available, CIP Status: 0x1 (Connection failure), CIP Extended Status: 0x311 (Port not available).
There is a thread about these errors (https://forums.ni.com/t5/LabVIEW/NI-OPC-Server-and-Micro850/m-p/3349478), unfortunately it has outdated information.
Has anyone used EthernetIP with the AB PLC?
Has anyone in the history of LabVIEW worked with the Micro850?
