KB-30772: Acknowledging alarms in two Domains at the same time.

Question:

There are two machines, each one executing an E3 Server, which communicate to a single PLC. Can I configure the application to acknowledge alarms in both Domains when acknowledging them in one of them?

Solution:

Yes, you can. To do so, there are two options:

1. If you are using Remote Domains, write the following script:

Application.GetObject(“AlarmsServer”).AckAllAlarms(Application.User)
Application.GetObject(“RemoteDomainName:AlarmsServer”).AckAllAlarms(Application.User)

2. If you are not using Remote Domains,  create a Tag in the PLC, and when acknowledging the alarm via scripts, send a signal to this Tag. Then, you must configure the other Domain to supervise the variation of the Tag’s value, and create a user event in the Viewer, which acknowledges the alarm in the local alarms server.

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