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AVEVA™ Plant SCADA

Tag Address Formats

  • Last UpdatedDec 16, 2021
  • 1 minute read

After migrating the project successfully, the following changes can be observed in tag addresses.

Controller Tags

  • Controller Tags

    For the Tag address [OPCTOPIC] will be added to the tag address format.

    Example:

    ABCLX Tag address => TagAddress_00

    OPCLX Tag address => [OPCTOPIC]TagAddress_00

  • Controller Array Tags

    If the Tag address contains "{}" braces it will be changed to the [] braces.

    Example

    ABCLX Tag address => TagAddress_00{100}

    OPCLX Tag address => [OPCTOPIC]TagAddress_00[100]

  • Controller Array Tags referring to a particular bit in the array

    If the Tag address contains "/" character it will be changed to "." character.

    Example

    ABCLX Tag address => TagAddress_00{100}/5

    OPCLX Tag address => [OPCTOPIC]TagAddress_00[100].5

  • Controller sub array tags

    If the Tag address contains "!A[<count>]" then it will be changed to ",L<Count>!A[<count>].

    Example

    ABCLX Tag address => TagAddress_00!A[5]

    OPCLX Tag address => [OPCTOPIC] TagAddress_00,L5!A[5]

  • Controller sub array tags

    If the Tag address contains "/<startIndex>!A[<count>]" then it will be changed to "[startIndex],L<Count>!A[<count>].

    Example

    ABCLX Tag address => TagAddress_00/10!A[5]

    OPCLX Tag address => [OPCTOPIC] TagAddress_00[10],L5!A[5]

Program Tags

For FactoryTalk Tag address formats are:

  • Program Tags

    ::[OPCTOPIC]PROGRAM:MainProgram.TagName

    Example:

    ABCLX Tag address => PROGRAM:MainProgram.TagAddress_00

    OPCLX Tag address => ::[OPCTOPIC]PROGRAM:MainProgram.TagAddress_00

  • Program Array Tags

    ::[OPCTOPIC]PROGRAM:MainProgram.TagName

For RSLinx Classic Tagaddress formats are:

  • Program Tags

    [OPCTOPIC]PROGRAM:MainProgram.TagAddress_00

    Example:

    ABCLX Tag address => PROGRAM:MainProgram.TagAddress_00

    OPCLX Tag address => [OPCTOPIC]PROGRAM:MainProgram.TagAddress_00

  • Program Array Tags

    [OPCTOPIC]PROGRAM:MainProgram.TagName[ArraySize]

    Example:

    ABCLX Tag address => PROGRAM:MainProgram.TagName{10}

    OPCLX Tag address => [OPCTOPIC]PROGRAM:MainProgram.TagName[10]

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