Alarms and events

Define the alarm properties

Use the Alarm properties dialog to identify the parameter that you want to trigger the alarm and you associate that parameter with the alarm.

Using the example in Creating a Custom Alarm Calculation (PV > 70), define the alarm properties by following these steps:

  1. Click the Condition block to select it.
  2. Right-click in the Alarms View window and select Add.
  3. In the Properties dialog, select an Alarm type. For this example, select Any Alarm.
  4. Select the Priority. The priority of Log only sends the event to the Event Journal and does not display anything to the operator.
    Note

    This step sets the alarm presentation.

  5. In the Related Parameters section's Alarm field, browse to the Condition block's OUT_D parameter.
  6. Make sure the alarm is enabled and invert the alarm characteristics if desired.
  7. Use the Advanced tab to change the alarm message parameters (if available) and set the Alarm Shelving Timeout.
  8. Click OK.
  9. Right-click the alarm and select Rename. Rename the alarm appropriately.

The alarm is now defined for the parameter OUT_D of the Condition block. When the AI block's PV > 70, the output of the Condition block is set to True and the alarm is triggered.

Note

If the alarm was inverted, then the alarm is triggered when OUT_D of the Condition block is set to False.