Revision 2.0 FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide Page 13
Block_ERR
Bit
Block Alarms Description
6 Device Needs
Maintenance Soon
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.
7 Input Failure When a sensor failure (open thermocouple) or
sensor conversion not accurate.
8 Output Failure 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.
9 Memory Failure A diagnostic algorithm has found a failure in
memory (includes all types) and the device is
still able to communicate that condition.
10 Lost Static data If the object’s static data is Bad, then the
object’s database is set to its default values.
11 Lost NV data 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.
12 Readback Check failed This indicates the readback of the actual
continuous valve or other actuator position in
transducer units has failed.
13 Device needs
maintenance now
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.
14 Power-up 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.
15 Out-of-Service The actual mode is OOS. No control function
blocks are being processed.
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