About InTouch Alarms

Alarms represent warnings of process conditions that could cause problems and require an operator response. A typical alarm is triggered when a process value exceeds a user-defined limit, such as an analog value exceeding an upper threshold. This triggers an alarm to notify the operator of a problem. After the operator acknowledges the alarm, the InTouch HMI recognizes the alarm has been acknowledged.

You can configure the InTouch HMI to require an alarm to be acknowledged even if the condition causing the alarm has passed. This ensures that an operator is aware of events that caused a temporary alarm state but have returned to normal.

The main alarm states are described in the following table: