Troubleshooting The Integrator Block; Table 27: Integrator Block - Honeywell ST700 User Manual

Troubleshooting the Integrator block

Problem Cause
Integrator block mode is
in OOS and does not
change to AUTO mode.
Integrator block mode is
in OOS mode with Block
Configuration Error.
Value of output does not
make sense.
Value of output is going in
negative value.
Block alarms are not
reported.
Revision 2.0 FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide

Table 27: Integrator block

Things to check
Read
MODE_BLOCK.PERMITTED.
Read MODE_BLOCK.ACTUAL of
Resource block.
Schedule
Check INTEG_TYPE
Check TIME_UNIT 1 and
TIME_UNIT 2.
Check TOTAL_SP.
Check REV_FLOW1 and
REV_FLOW 2.
Check INTEG_OPTS
Flow forward and flow reverse
Read FEATURE_SEL.
Read LIM_NOTIFY.
Recommended Action
Add AUTO mode to
MODE_BLOCK.PERMITTED.
If necessary, set
MODE_BLOCK.TARGET to AUTO.
NOTE: If the mode is to OOS for
maintenance, then do not change the
mode to AUTO.
Block is not scheduled and therefore
cannot execute to go to Target Mode.
Schedule the block to execute.
INTEG_TYPE must not be zero/blank.
TIME_UNIT1 & TIME_UNIT 2 must
not be zero/blank.
TOTAL_SP must be set to a valid
value and cannot be left at 0, if
INTEG_TYPE is UP_AUTO,
DN_AUTO.
For forward flow REV_FLOW1 and
REV_FLOW 2 must be set as
Forward, and for reverse flow
REV_FLOW1 & REV_FLOW 2 must
be set as Reverse.
For forward flow in INTEG_OPTS
flow, forward must be selected and for
reverse flow in INTEG_OPTS flow,
reverse must be selected.
Reports are not selected in
FEATURE_SEL. If features do not
include Reports, then the host must
poll for alarms.
Set LIM_NOTIFY to a value higher
than zero, but not higher than
MAX_NOTIFY.
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