Here’s what more than 2,500 business decision-makers around the world say.Download the report
...with the Facility Hero app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
1.1LCD / Keypad
When a CPU switches to offline, the simple way to get the reason why the CPU entered this state is to use the LCD/Keypad:
Using the Keypad, select “PLC Operations “ Menu Then select “Hot StandBy”
The LCD will display:
Select the “UP” arrow till getting the Diag Menu
The Diag Menu provides the reason for the CPU State.
1.2 Diagnostic Viewer
Another way to get some Diagnostic in an HSBY system is to use the Diagnostic Viewer in Unity Pro:
Select the “Tools” menu in Unity Pro
Select “Diagnostic viewer”
The Following screen appears:
It provides information about the history regarding the CPU and the failure reason.