Table 35: Summary Of Function Blocks Non-Critical Faults - Honeywell SLG 700 Option Manual

Table 38 summarizes the conditions that could cause a non-critical fault in the transmitter along
with recommended actions to correct the fault.
Table 38: Summary of Function blocks Non-critical Faults
Problem/Fault
AI block is
executing, but
status of OUT
parameter is:
Good::[alarm
status]:Constant
AI block is
executing, but
status of OUT
parameter is:
Uncertain::[alarm
status]: inaccurate
AI block is
executing, but
status of OUT
parameter is: One
of the following AI
alarms is active in
ALARM_SUM.CUR
RENT
Rev.5
Probable Cause
AI block is in Manual mode.
PV value of transducer block is
outside range of XD_SCALE. When
AI block CHANNEL = 1(OR)
OUT value of AI block is outside of
OUT_SCALE range.
HI_HI, HI, LO, LO_LO - OUT has
crossed the corresponding limit
HI_HI_LIM, HI_LIM, LO_LIM,
LO_LO_LIM, and is either still past
the limit or is in the hysteresis range.
ALARM_HYS is the percentage of
OUT_SCALE that is used for alarm
hysteresis.
Block alarm.
FOUNDATION Fieldbus Option User's Manual
Recommended Action
Write AUTO to
MODE_BLK
parameter of AI block.
Sensor board may
have been damaged.
Check the transmitter
for accuracy and
linearity.
Replace the sensor
board and recalibrate,
if needed.
Reduce the value or
increase limits.
Check BLOCK_ERR
for status bit. See
Table 3
Page 197