Signatures for Alarms and Events

The InTouch Distributed Alarm system includes the Alarm DB Logger utility that logs alarms and events to the alarm database. Alarm and event records are generated by the system and include user name, time and date and all other event details.

You can acknowledge alarms using the AVEVA Alarm Client Control and in InTouch by providing your log-on credentials. In the Alarm Client Control, select the Requires ACK Signature check box to configure alarms to require a signature for acknowledging them.

For both the Alarm Client Control and the SignedAlarmAck() script function, when the signature requirement is enabled, the user credentials are required only if the alarms to be acknowledged fall within a specified priority range, or if no user is currently logged on to the InTouch application. This is because if a Galaxy is secured, then only an authenticated user can acknowledge alarms.

If the system is configured with a Smart Card reader, users can provide the Smart Card and the valid PIN to acknowledge the alarm.

In the IDE, the SignedAlarmAck() script function enables the user to configure AVEVA Industrial Graphics, set to act as alarms, to require a signature in order to be acknowledged.

Similar to the Alarm Client Control, you can use Smart Cards to provide user authentication.