AVEVA™ InTouch HMI

System tags reference

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System tags reference

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Last UpdatedDec 13, 2024
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The InTouch system tags are described in the following table:

System Tag	Purpose	For More Information
$AccessLevel	Read-only integer tag that specifies the access level associated with the currently logged-on operator. This information can be used in animation links or scripts to control the operator’s access to specific InTouch functions.	See Securing InTouch
$ApplicationChanged	Read-only discrete tag that indicates whether the primary application has changed in a NAD environment.	See Distributing Applications
$ApplicationVersion	Read-only real tag that specifies the current version number of the application running in WindowViewer.	See Distributing Applications
$ChangePassword	Discrete write-only tag that shows the Change Password dialog box when set to 1.	See Securing InTouch
$ConfigureUsers	Write-only discrete tag that shows the generic Configure Users dialog box to edit the security user name list.	See Securing InTouch
$Date	Read-only integer tag that shows the whole number of days that have passed since January 1, 1970.	See Built-In functions
$DateString	Read-only message tag that shows the date in the same format specified from the Windows Regional and Language Options dialog box.	See Built-In functions
$DateTime	Read-only real tag that shows the fractional number of days that have passed since January 1, 1970.	See Built-In functions
$Day	Read-only integer tag that shows the current day of the month (1-31).	See Built-In functions
$False	Discrete read-only tag that returns a FALSE value within an expression. The $False system tag is used to replace any instance of obsolete system tags when updating applications from earlier versions of InTouch to the current version.	No further information.
$HistoricalLogging	Read/write discrete tag used to start and stop historical logging while an InTouch application is running.	See Record tag values.
$Hour	Read-only integer tag that shows the current hour as a value from 0 to 23.	See Built-In functions
$InactivityTimeout	Read-only discrete tag that indicates the user inactivity period has elapsed. When set to 1, the inactivity period has elapsed and the user is automatically logged off from WindowViewer.	See Securing InTouch
$InactivityWarning	Read-only discrete tag that indicates the inactivity warning period has elapsed. The value of $InactivityWarning can be used to issue an inactivity warning to an operator.	See Securing InTouch
$LogicRunning	Read/write discrete tag that can be used to start and stop an application script.	See Securing InTouch
$Minute	Read-only integer tag that shows the current minute (0-59).	See Built-In functions
$Month	Read-only integer tag that shows the number of the current month (1-12).	See Built-In functions
$Msec	Read-only integer tag that shows the current millisecond (0-999).	See Built-In functions
$NewAlarm	Read/write discrete tag that indicates when a new local alarm has occurred.	See Control alarm properties of tags and groups at runtime
$ObjHor	Read-only integer tag that shows the horizontal pixel location of the center of a selected object on the screen.	See Animate objects in AVEVA™ InTouch HMI Application Development
$ObjVer	Read-only integer tag that shows the vertical pixel location of the center of a selected object on the screen.	See Animate objects in AVEVA™ InTouch HMI Application Development
$Operator	Read-only message tag that shows the name of the operator logged on to an InTouch application.	See Securing InTouch
$OperatorDomain	Read-only message tag that contains the domain or machine name specified at log on when the application is secured with operating system-based security.	See Securing InTouch
$OperatorDomainEntered	Write-only message tag assigned the domain of the operator for a logon attempt to an InTouch application. The logon attempt does not start until you assign a value to the $PasswordEntered system tag.	See Securing InTouch
$OperatorEntered	Read/write message tag assigned the user account name of an operator for a logon attempt to an InTouch application. The logon attempt does not start until you assign a value to the $PasswordEntered system tag.	See Securing InTouch
$OperatorName	Read-only message tag that shows the full name of the operator if operating system-based or ArchestrA® authentication is used.	See Securing InTouch
$PasswordEntered	Write-only message tag assigned the password of an operator for a logon attempt to an InTouch application. When you write a value to this tag, a logon attempt is started using the values of the $OperatorDomainEntered, $OperatorEntered, and $PasswordEntered system tags.	See Securing InTouch
$Second	Read-only integer tag that shows the current second (0-59).	See Built-In functions
$StartDdeConversations	Read/write discrete tag used to start uninitiated conversations during run time.	See Data access with I/O.
$System	Read-only tag that identifies the root alarm group.	See About Alarms and Events
$Time	Read-only integer tag that shows the elapsed time in milliseconds since midnight of the current day.	See Built-In functions
$TimeString	Read-only message tag that shows the current time in the same format specified from the Windows Regional and Language Options dialog box.	See Built-In functions
$VerifiedUserName	Read-only message tag that contains either a verified user’s full name or null.	See Securing InTouch
$Year	Read-only integer tag that shows the current year as a four-digit number.	See Built-In functions

AVEVA™ InTouch HMI

System tags reference

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System tags reference

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