Function Block Faults; Table 34: Identifying Critical And Non-Critical Function Block Faults - Honeywell SLG 700 Option Manual

7.5 Function Block Faults

Checking the status and values of key block parameters helps in identifying the type of function
block fault whether it is critical or non-critical. Table 37 helps in identifying the type of function
block fault and provides corrective action to restore normal operation.
Table 37: Identifying Critical and Non-critical Function block faults
Block. Parameter
AI.OUT =
STATUS =
AI.ALARM_SUM.
CURRENT =
All Blocks
BLOCK_ERR=
See Table 3 for
description of
BLOCK_ERR
(messages)
Rev.5
Value Fault
Type
Bad/sensor Critical
failure
Bad/device Critical
failure
Good/constant Non-
critical
Uncertain
Block alarm Critical/
Non-
critical
Process alarm Non-
critical
Block Non-
Configuration critical
Error (1)
Simulation Non-
Active (3) critical
Input Critical
Failure/Process
Variable has
Bad Status (7)
Memory Failure Critical
(9)
Lost Static Data Critical
(10)
Lost NV Data Critical
(11)
FOUNDATION Fieldbus Option User's Manual
Action
See AI.BLOCK_ERR for message.
See Table 3 for details on
BLOCK_ERR.
See BLOCK_ERR of all blocks in
device for message. See Table 39.
See AI.BLOCK_ERR for message.
See Table 3.
See BLOCK_ERR of all blocks in
device for message.
See Table 39
See Table 38
See BLOCK_ERR of all blocks in
the device in Table 3.
See Table 38.
Check the value of all configurable
parameters in the block and correct
if necessary. See Resolving the
block configuration errors.
Set "simulate jumper" to "N" on the
electronics board, and set the
ENABLE_DISABLE field to "1" of
the SIMULATE parameter. See
section 7.6.
Write Processor or (4) to RESTART
parameter of resource block. If
failure continues, replace the sensor
board.
Set Resource block to OOS.
Write Processor or (4) to RESTART
parameter.
Wait for 10 seconds.
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