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AVEVA™ InTouch HMI

Create a custom logon window

  • Last UpdatedJun 17, 2024
  • 2 minute read

If the Special menu is not shown in WindowViewer, you can create a custom logon window for operator to log on to the application.

Create a custom log on window

  • Link the $OperatorEntered, $PasswordEntered and $OperatorDomainEntered system tags to user input objects or use them in a script to set the user name, password, and domain name. These tags are internal message type tags that are intended for write operation only.

The $OperatorDomainEntered tag is required only if the security mode is operating system-based. Otherwise, this tag is ignored. If the security mode is operating system-based and the $OperatorDomainEntered is null, it is treated as pointing to the local computer.

When a value is written to the $PasswordEntered system tag, a logon attempt occurs using the $OperatorEntered, $PasswordEntered, and $OperatorDomainEntered system tag values. No logon occurs if values are written to only the $OperatorEntered or $OperatorDomainEntered system tags.

If the entries are valid, the $AccessLevel and $Operator internal tags are set to their predefined values (configured in the security user list).

You can also link a User Input - Discrete button to the $ConfigureUsers tag to allow an authorized operator with an access level of equal to or greater than 9000 to access the Configure Users dialog box to edit the security user name list. When the operator selects the button, the value of the $ConfigureUsers tag is set to 1 and the Configure Users dialog box appears. When the operator closes the dialog box, the system resets the value to 0. (This is a system discrete tag intended for write operation only.)

Note: The $ConfigureUsers tag only works if the security type is set to InTouch. It does not work for ArchestrA-based security.

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