Alarms

An alarm is a device which has a boolean state indicating whether or not it is triggered. The description of the alarm might indicate an equipment failure, high temperature, low voltage, etc.

Setup

Select View ➔ Maintenance ➔ Alarms menu item

An alarm must be associated with a controller on an appropriate comm link. Several protocols are supported:

Events

The state field is set to true when triggered. When it changes, a time-stamped event record can be stored in the alarm_event table.