Trigger Tags

Trigger tags can be used to activate a process at a set time and date.  They may be configured to repeat at regular intervals, or they can be configured to trigger based on an expression or another tag’s value.  By drawing the trigger tag on a page, you can also provide a way for operators to manually trigger an event.

 

As well as defining a schedule or event that will set the trigger to 1 (On), you can should also define a schedule for when it will be reset to 0 in preparation for the next trigger event.  This may be configured as a delay measured in seconds after the On trigger event, it may be set to a regular schedule or it may be tied to an expression or tag value.

An “Enable” parameter is provide to allow you to control whether the trigger tag is activated or not. If the tag is drawn on a page, this can be toggled by right-clicking on the drawing method.  Disabling a trigger tag will also force its value to be 0 (OFF).

 

 

Trigger Tag Type Characteristics

Tag Browser Name:   Trigger

Database Table Name:          TriggerTag

Type:   Data Logging and Reporting Tags,  Calculation

Tag Group Memberships:      Digitals, Numeric, Trenders

Log Enabled Variables:          Value

Native Drawing Methods:    Digital Output Drawing Methods.