ABB 800xA Operation page 136

Controller Node Subsystem Status Display
DIAGNOSTICS
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only meaningful displays for use with D/F Modules are the Diagnostic
Message Displays.
The D/F status, shown in the D/F fields, is either DOWN (Red) or ACTIVE
(Green).
The status of power up diagnostics for each module accessible on the DCN is
reported in this field. This area is always the Page Forward and Page Back
region.
The possible diagnostic errors for the Control Module, Backup Memory
Module and D/F Module are:
– RAM Error (fatal error).
– PROM Checksum Error (fatal error).
– Timer Error (timer is not within a set tolerance during a 10 ms delay).
– Watchdog Timer Error (on-board watchdog timer times out in under 350
ms or takes longer than 410 ms).
– Bus Error Handling Error (system getting bus errors on valid addresses or
not getting errors on invalid addresses).
– Parity Handling Error (system is not correcting a one bit error or not
detecting a two bit error).
– D/M Error (M/F cannot communicate with the D/M or the D/M has an
error).
– XMEM Not Supported.
– Unknown Error.
– Analog Output Error.
– Analog Input Error (error reading high or low reference channel or
standard channel).
– Digital Input Error (error reading high input, low input, or unable to get
interrupt).
– Digital Output Error.
Section 6 Status Displays
3BUR002418-600 A