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What is the WATCH feature

The WATCH feature allows the end-user to view the contents of a register-address in a message of an event. Users may set register-addresses from the PLC, Remote HMI, or Local HMI. The register-address will display the contents in the Events message. Each Event (Alarm) Log has the ability to have 8 WATCH addresses.

How can I display a popup window message when an alarm triggers on my HMI?

You can use one of these two objects to display a popup window when an alarm is triggered on a HMI:

Direct Window: displays a predefined window based on the state of a bit.

Indirect Window: displays a window based on the value in a register.

You can use your alarm to set the state of a bit or load a value into a register which will trigger the window you want to display.

If you want the popup window to be displayed on any screen in the project when the alarm is triggered, place the window object on the Common Window.

What is the Event Display Object?

The Event Display in EBPro displays both the currently active and previous alarms in a spreadsheet style object, and has the ability to show historical alarms as well (real-time by default). The Event Display can also show more than just the time and the alarm message, it can show an occurrence count, event trigger time,…