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Thread: Interlocking: Value not available

  1. #1
    Join Date
    25.03.2012
    Posts
    21

    Default Interlocking: Value not available

    Hi all
    I have this interlocking conditions:
    (X01.Value = 1) AND (X02.Value = 5)

    I want to be able to control my device even when Value 1 is not available and have the interlocking explicitly when the Value is = 1, but I get "One or more values are not available"
    I checked the Help files and it seems to be an Internal interlocking condition.
    Can I disable or change this behavior for this Interlocking?

  2. #2

    Default Re: Interlocking: Value not available

    Hi,

    By "even when the value is not available" do you mean that there is no known value and status for this variable in the runtime?

    In this case, the runtime cannot determine the interlocking state.

    Have you tried switching the variable to alternate value?

    Best regards,
    Mark

  3. #3
    Join Date
    25.03.2012
    Posts
    21

    Default Re: Interlocking: Value not available

    By not available I mean:
    variable is red by a device via IEC60870-5-104 and the device is not connected in the network
    I need to bypass the interlock when the device is not available and have the interlock only when it is online and the value in the variable is the defined one.
    Stoil

  4. #4

    Default Re: Interlocking: Value not available

    Hi,

    Wether there is no value, or the value is INVALID, switching to the alternate value, and setting the alternate value to the appropriate value for the interlocking to be unlocked, allows you to bypass the interlocking.

    You can switch to alternate value, through the set value dialog (combo-box), through Recipe Group Manager, through the report generator or using the programming interface.

    Regards,
    Mark

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