Honeywell NXL User Manual
Page 91
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Fault tracing
91(96)
9
53
Fieldbus fault
The data connection between the fieldbus
Master and the fieldbus board is broken
Check installation.
If installation is correct contact the
nearest Honeywell distributor.
54
Slot fault
Defective option board or slot
Check board and slot.
Contact the nearest Honeywell
distributor.
55
Actual value
supervision
Actual value has exceeded or fallen below
(depending on par. 2.7.22) the actual
value supervision limit (par. 2.7.23)
Table 9-1. Fault codes
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