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AVEVA™ InTouch HMI

Specify a message I/O tag

  • Last UpdatedSep 10, 2025
  • 1 minute read

You can specify an I/O message tag options that specify the network address of remote processes. Its message properties are the same as a memory message tag.

Define memory and I/O message tag values

  1. Open the Tagname Dictionary and assign a name for a new tag.

  2. Select I/O Message as the type of tag from the Tag Types dialog box. The detail portion of the Tagname Dictionary dialog box appears.

    Memory and IO Message Tag Values

  3. In the Maximum Length box, type the maximum number of characters allowed in the tag's message.

    You can enter messages to a maximum of 131 characters.

  4. In the Initial Value box, type the text string that you want shown when WindowViewer starts the application.

  5. Save your changes to the tag.

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