Table 36: Summary Of Function Blocks Critical Faults - Honeywell SLG 700 Option Manual

Table 39 summarizes the conditions that could cause a critical fault in the transmitter along with
recommended actions to correct the fault.
Table 39: Summary of Function blocks Critical Faults
Problem/Fault
AI block is
executing, but
status of output is:
Bad:[alarm status]:
sensor failure
AI block is
executing, but
status of output is:
Bad::[alarm status]:
device failure
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Probable Cause
One of the FAIL conditions in
Field Diagnostics has got Set.
.
Sensor board has stopped
communicating with the
communication board.
FOUNDATION Fieldbus Option User's Guide
Recommended Action
If the diagnostics is
related to input being
open, check the
connections as per the
connections diagram.
If the failure still exists,
write "4" or "restart
processor" to
RESTART parameter
of resource block.
If the failure persists
and sensor related,
replace the sensor
board if the.
If the failure persists
and communication
board related, replace
the communication
board.
Write "4" "or "restart
processor" to
RESTART parameter
of resource block. If
failure is still present,
replace communication
board.
Rev. 3.0