Yes, we did it like you said, we create an application with C#, it works as OPC UA client and communicate with Siemens RFID, and TwinCAT PLC communicates with this application with ADS, but this application is not working well, sometimes it losts communication with RFID, we can't solve this problem, and also Siemens don't give any support for this, finally, we get rid of Siemens RFID and change to other solutions.
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