Troubleshooting The Signal Characterizer Block; Table 29: Signal Characterizer Block - Honeywell ST700 User Manual

Troubleshooting the Signal Characterizer block

Problem cause
Signal characterizer
block mode is in OOS
and does not change to
AUTO mode.
Mode does not change
from OOS
Value of output is
incorrect
Block alarms are not
reported.
Revision 2.0 FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide

Table 29: Signal Characterizer block

Things to check
Read
MODE_BLOCK.PERMITTED.
Read MODE_BLOCK. ACTUAL of
Resource block.
Configuration error.
Error in X or Y array.
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.
BLOCK_ERR shows the Block
Configuration Error condition, due to
array configuration errors.
See section 3.
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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