DCX250 programs disable and the display stops operating.

Issue

DCX250 goes blank appears to stop operating.

Product Line

Andover Continuum

Environment

Infinity DCX250

Plain English Programs

Cause

The DCX250 uses Point to Point communications (not Import/ Export) for all of its communications, this relies on the other controllers being online and communicating at that time.

Resolution

The DCX250 uses point to point comms (not import / export) for all communications with other controllers, this should be done in a single import/ export mapping program to local numerics that is protected by an E: line or a First Aid program. The display programs should then use these local numerics for the screens, this ensures the user interface programs will still operate correctly in the event of a network problem.

Also check the Infinet for Reconfigs to ensure network is operating correctly, verify correct cabling and grounding of equipment