OPC UA No Value displayed

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  • September 17, 2025 at 1:01 am #17055
    Alien
    Participant

    Hi,

    I’m new to the whole OPC and SCADA thing, I’ve been trying to connect Yokogawa FA-M3V PLC to DeviceExplorer OPC and subsequently to Rapid Scada using OPC UA. I’m facing issue with Cache Registers(F) on Rapid Scada. Data registers(D) work fine and the values are displayed but the cache registers are blank. Any suggestions on what might be causing this particular issue? DeviceExplorer OPC displays all the values and the values get updated.

    September 17, 2025 at 10:46 am #17062
    Mikhail
    Moderator

    Hi,
    Could you make screenshots from Rapid SCADA and another OPC client?

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