Hello… I’m trying to use a Groov EPIC PR-1 controller to import some data from a plating line installed by a 3rd party in my facility. The installer uses an Allen Bradley PLC (which I know essentially nothing about) and I have not been given access to the PLC or its code. The installer also uses a Windows application called Flextime in conjunction with the AB PLC.
I know that Flextime and the AB PLC are communicating through an OPC server running on the Windows server that Flextime runs on. I know that the OPC server is INGEAR Allen-Bradley OPC Server 4.0. I can bring up a client on the local PC and see the various analog and digital inputs and outputs on the server:
If I look at the OPC configuration in Flextime (which, again, I did not set up), I see the following:
With that configuration, Flextime can see the items from the OPC server:
The online manual for the OPC server software seems pretty limited.
Within Node-RED, I installed
node-red-contrib-opc-da (v1.0.4). When I create a
opc-da in node, I’m prompted to create a OPC Group and then within that I’m prompted to create a OPC Server. When I attempt to create a server and run “Test and get items”, I get an authentication error in the debug pane:
For the username and password, I used the Windows username and password for the PC. I got the ClsId from the Flextime OPC configuration (seen in the screenshot above). I tried the ClsID with and without the surrounding curly brackets seen in the screenshot without any change. I don’t really know what to enter for the domain, but “CORROTEC” is the workgroup listed on the Windows PC.
Any help with this would be greatly appreciated. I hate dealing with this kind of closed third party system, but I need to do what I can to extract data from the AB I/O devices.