Honeywell NXL User Manual page 91

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Fieldbus fault
53
Slot fault
54
Actual value
55
supervision
Table 9-1. Fault codes
Fault tracing
The data connection between the fieldbus
Master and the fieldbus board is broken
Defective option board or slot
Actual value has exceeded or fallen below
(depending on par. 2.7.22) the actual
value supervision limit (par. 2.7.23)
Check installation.
If installation is correct contact the
nearest Honeywell distributor.
Check board and slot.
Contact the nearest Honeywell
distributor.
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