Revision 4 Foundation Fieldbus RMA803 Remote Indicator User's Guide Page 107
Troubleshooting the Arithmetic block
Table 32: Arithmetic block
Problem Cause Things to check Recommended Action
Arithmetic 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.
Mode does not
change from OOS.
Configuration error.
BLOCK_ERR shows the Block
Configuration Error condition,
since ARITH_TYPE is not set.
Value of output is
incorrect
Error in configuration. Ensure that engineering units are
correct for the computation. If
that fails, see section 3.
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.
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