The " E_FAIL IOPCItemMgt.AddItems " Error occurred using the OPC connection

Forum Home Forums Communicating with Devices OPC The " E_FAIL IOPCItemMgt.AddItems " Error occurred using the OPC connection

This topic contains 1 reply, has 2 voices, and was last updated by Mikhail Mikhail 1 year, 1 month ago.

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  • #2811

    zhaochengshen
    Participant

    Dear Mikhail,
    when I use the opc Connection,one of two things hanppens:
    1、when i connection the Knight.opc.server. the opc line’s state is normal, but unable to receive data from OPC server while OPC tag properties are available in the device configuration form. the line’s log show “Error creating data reading subscription:E_FAILIOPCItemMgt.AddItems” errors info.
    2、when i connection Third-party software,the Scada-Communicator application stops working.but I can connect with the Matrikon opc explorer.

    Why it happend? How to solve it?

    Thank you.

    #2812
    Mikhail
    Mikhail
    Moderator

    Hi,

    Try this advice. Does the console app work?

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