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OpcUA and user defined data (UDT) is it possible?

mikael.engstrommikael.engstrom
in PLCnext Engineer

I have a remote siemens opc_ua_server with a UDT_TABLE looking like this:

Screenshot 2024-01-03 103841.png

The table is for a calender based start/stop function.

So i have declared them in siemens based on weekdays(Sunday through saturday):

Screenshot 2024-01-03 103510.png

But now my customer want to centralize this to a plc-next controller, so i begun doing some tests. And therefore I'm curious, am I limited to using the following variable identifier, that connects directly to the integer value (s="DB_TID"."MONDAG"."START_B_H_FM") or can i somehow connect it to a udt that is defined in the same way in plcNext? since this would mean either 98 separate variable mappings or 7...

And if I want to both write and read the tags, do I need to define them both as Group type Write AND Group type Subscribe?


BR

Mike

Comments

  • Martin - PLCnext Technology TeamMartin - PLCnext Technology Team
    edited January 2024

    According to the Info Center:

    image.png

    Since UDTs are structures, unfortunately it's not possible to link them directly to a single OPC UA Client variable.

    And if I want to both write and read the tags, do I need to define them both as Group type Write AND Group type Subscribe?

    Yes, that's correct.

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