Honeywell ST700 - Troubleshooting the Flow Transducer Block; Table 22: Flow Transducer Block

Page 100 FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide Revision 2.0
Troubleshooting the Flow Transducer block
Table 22: Flow Transducer block
Problem Cause Things to check Recommended Action
Flow Transducer block
mode is in OOS and does
not change to AUTO
mode.
Read
MODE_BLOCK.PERMITTED
Add AUTO mode to
MODE_BLOCK.PERMITTED.
Read MODE_BLOCK. ACTUAL
of Resource block.
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.
Flow Transducer block
mode is in OOS mode
with block configuration
error.
Read PRESS_BASIC block’s
MODE_BLOCK.ACTUAL.
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.
Read Primary value Range
parameters.
PRIMARY_VALUE_RANGE.EU_0
must be greater than or equal to zero.
Flow transducer block
does not produce valid
FLOW_RATE value.
Check FLOW_TYPE,
FLOW_UNIT and RATED_FLOW.
Ensure that FLOW_TYPE,
FLOW_UNIT and RATED_FLOW
have valid ranges and units assigned.
Block alarms are not
reported.
Read FEATURE_SEL Reports are not selected in
FEATURE_SEL. If features do not
include Reports, then the host must
poll for alarms.
Read LIM_NOTIFY Set LIM_NOTIFY to a value higher
than zero, but not higher than
MAX_NOTIFY.