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Troubleshooting
TABLE B-7. Troubleshooting.
Model 4081FG Oxygen Analyzer with F
Refer to Table B-7 to troubleshoot any problems that you encounter.
Symptom
Mode will not leave
1. Target mode not set.
OOS
2. Configuration error
3. Resource block
4. Schedule
Process and/or
1. Features
block alarms will not
work.
2. Notification
3. Status Options
Value of output
1. Linearization Type
does not make
sense
2. Scaling
Cannot set
1. Scaling
HI_LIMIT,
HI_HI_LIMIT,
LO_LIMIT, or
LO_LO_LIMIT
Values
fieldbus Communications
OUNDATION
Possible Causes
1. Set target mode to something other
than OOS.
2. BLOCK_ERR will show the
configuration error bit set. The following
are parameters that must be set before
the block is allowed out of OOS:
a. CHANNEL must be set to a valid
value and cannot be left at initial
value of 0.
b. XD_SCALE.UNITS_INDX must
match the units in the transducer
block channel value.
c. L_TYPE must be set to Direct,
Indirect, or Indirect Square Root and
cannot be left at initial value of 0.
3. The actual mode of the Resource block
is OOS. See Resource Block Diagnostics
for corrective action.
4. Block is not scheduled and therefore
cannot execute to go to Target Mode.
Schedule the block to execute.
1. FEATURES_SEL does not have Alerts
enabled. Enable the Alerts bit.
2. LIM_NOTIFY is not high enough. Set
equal to MAX_NOTIFY.
3. STATUS_OPTS has Propagate Fault
Forward bit set. This should be cleared to
cause an alarm to occur.
1. L_TYPE must be set to Direct, Indirect,
or Indirect Square Root and cannot be left
at initial value of 0.
2. Scaling parameters are set incorrectly:
a. XD_SCALE.EU0 and EU100 should
match that of the transducer block
channel value.
b. OUT_SCALE.EU0 and EU100 are
not set properly.
1. Limit values are outside the
OUT_SCALE.EU0 and
OUT_SCALE.EU100 values. Change
OUT_SCALE or set values within range.
Corrective Action
B-13
B
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Table of Contents
Troubleshooting
