Honeywell ST700 User Manual page 27

Block_ERR
Bit
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Revision 2.0 FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide
Block Alarms
Device Needs
Maintenance Soon
Input Failure
Output Failure
Memory Failure
Lost Static data
Lost NV data
Readback Check failed
Device needs
maintenance now
Power-up
Out-of-Service
Description
A diagnostic algorithm has found a warning
condition. The NV memory is approaching the
maximum number of reliable writes.
NOTE:
It is not applicable to the transmitter.
When a sensor failure (open thermocouple) or
sensor conversion not accurate.
Output Failure detected by this block/back
calculation input has a status of Bad or Device
Failure.
NOTE:
It is not applicable to the transmitter.
A diagnostic algorithm has found a failure in
memory (includes all types) and the device is
still able to communicate that condition.
If the object's static data is Bad, then the
object's database is set to its default values.
The NV and static parameters are saved
periodically. This alarm occurs, if new data was
supposed to be saved to NV at the next NV
write cycle, but prevented the write due to
power failure.
This indicates the readback of the actual
continuous valve or other actuator position in
transducer units has failed.
A diagnostic algorithm has found an invalid
condition, but the device is still able to operate
and communicate. The NV memory has
reached the maximum number of reliable writes.
NOTE:
It is not applicable to the transmitter.
The resource is performing its first normal
execution, after power was applied to the
device. It is not an error but generates an alarm
that says that normal operation was interrupted
and is now being restored.
NOTE:
It is not applicable to the transmitter.
The actual mode is OOS. No control function
blocks are being processed.
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