Troubleshooting The Flow Transducer Block; Table 22: Flow Transducer Block - Honeywell ST700 User Manual

Troubleshooting the Flow Transducer block

Problem Cause
Flow Transducer block
mode is in OOS and does
not change to AUTO
mode.
Flow Transducer block
mode is in OOS mode
with block configuration
error.
Flow transducer block
does not produce valid
FLOW_RATE value.
Block alarms are not
reported.
Page 100 FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide

Table 22: Flow Transducer block

Things to check
Read
MODE_BLOCK.PERMITTED
Read MODE_BLOCK. ACTUAL
of Resource block.
Read PRESS_BASIC block's
MODE_BLOCK.ACTUAL.
Read Primary value Range
parameters.
Check FLOW_TYPE,
FLOW_UNIT and RATED_FLOW.
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 set to OOS for
maintenance, then do not change the
mode to AUTO.
If it is in OOS mode, then set
MODE_BLOCK.TARGET to AUTO.
NOTE:
If the mode is set to OOS for
maintenance then do not change the
mode to AUTO.
PRIMARY_VALUE_RANGE.EU_0
must be greater than or equal to zero.
Ensure that FLOW_TYPE,
FLOW_UNIT and RATED_FLOW
have valid ranges and units assigned.
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.
Revision 2.0