iLikeWaffles (Customer) asked a question.

How to use the Click and BRX as OPC UA Clients?

I have a Siemens S7-1500 PLC running an OPC Server. I also have a Click Plus and BRX each with OPC UA modules. I want them to act as OPC UA clients so that I can Read/Write tags to/from the Siemens PLC.

 

What is the method to do that?


  • HOST_franji1 (HOST Engineering)

    OPC UA clients are typically SCADA systems to talk to a bunch of OPC UA Servers (PLCs). Hence, BRX only functions as an OPC Server, not a Client (not sure about Click).

     

    Typically, PLC to PLC comm between manufacturers can be done using standards like EtherNet/IP or Modbus.

    • iLikeWaffles (Customer)

      Thanks for the reply. I understand the typical use cases, but I'm trying to see if this works. If I know 100% that the AD PLC's cannot act as clients, then I have my answer.

       

      The Siemens PLC can act as a Client, so that is always a possibility, but the other way around would be easier for me.

       

      Looks like both the Click and BRX software does not have options for client settings. Only to enable/disable OPC UA Server.

       

      I think I have my answer....Either I use the Siemens as a client and AD PLC's as servers, or I use Modbus TCP for comms.

      Expand Post
  • ADC Community_03 (AutomationDirect)

    CLICK (C2-OPCUA) is also a OPC UA Server. There is no Client functionality.