Alarm variables
Each alarm type has variables that you can dynamically link to the property of a graphic element. When the configured level for a graphic object is reached and the alarm occurs, the graphic object displays the value or message of the configured alarm.
For example, you can create a digital alarm and link the Active property of a graphic object such as a light-emitting diode (LED) to the Active variable of the digital alarm. When the alarm becomes active, the LED turns on.
Available variables depend on alarm type.
| Alarm variable | Description | Included in alarm types |
|---|---|---|
| Active | Make the graphic object active | All alarm types |
| Auto acknowledge | Acknowledge the alarm without intervention from the user | All alarm types |
| Auto confirm | Confirm the alarm without intervention from the user | All alarm types |
| Enabled | Enable the alarm | All alarm types |
| High limit | Indicate that the high limit of the graphic object is reached | Exclusive and Non-Exclusive alarm types |
| High-high limit | Indicate that the high-high limit of the graphic object is reached | Exclusive and Non-Exclusive alarm types |
| Input variable | Input the value from the Input value of the graphic element | All alarm types |
| Low limit | Indicate that the low limit of the graphic object is reached | Exclusive and Non-Exclusive alarm types |
| Low-low limit | Indicate that the low-low limit of the graphic object is reached | Exclusive and Non-Exclusive alarm types |
| Max TimedShelve duration | Indicate the maximum duration of TimedShelve | All alarm types |
| Message | Display the configured message when the alarm is active | All alarm types |
| Message high-high state | Display the configured message when the alarm is active and the high-high limit of the graphic object is reached | Exclusive and Non-Exclusive alarm types |
| Message high state | Display the configured message when the alarm is active and the high limit of the graphic object is reached | Exclusive and Non-Exclusive alarm types |
| Message low-low state | Display the configured message when the alarm is active and the low-low limit of the graphic object is reached | Exclusive and Non-Exclusive alarm types |
| Message low state | Display the configured message when the alarm is active and the low limit of the graphic object is reached | Exclusive and Non-Exclusive alarm types |
| Normal state value | Specify the normal value for the monitored variable. The alarm activates when the value of this variable is different from the one specified. | Digital alarm only |
| Polling time | Specify how frequently to poll for the status of the alarm | Exclusive Rate Or Change and Non-Exclusive Rate of Change alarms |
| Preset TimedShelve duration | Indicate the default TimedShelve duration for the alarm | |
| Severity | Display the severity of the alarm | All alarm types |
| Setpoint value | The desired value for the monitored variable. | Exclusive Level Deviation and Non-Exclusive Level Deviations alarms |