Reference Manual
00809-0100-4021, Rev FB
August 2011
4-11
Rosemount 3144P
F
OUN
DATION
F
ie
ldb
us
NOTE
The AI Block has a filtering parameter called PV_FTIME. For simplicity, it is
better to do filtering in the Transducer Block as damping will be applied to
primary value on every sensor update. If filtering is done in AI block, damping
will be applied to output every macrocycle. The LCD will display value from
Transducer block.
Sensor Transducer Block
Diagnostics
Table 4-6. Sensor Transducer
Block BLOCK_ERR messages
Table 4-7. Sensor Transducer
Block XD_ERR messages
Table 4-8 lists the potential errors and the possible corrective actions for the
given values. The corrective actions are in order of increasing system level
compromises. The first step should always be to reset the transmitter and
then if the error persists, try the steps in Table 4-8. Start with the first
corrective action and then try the second.
Table 4-8. Sensor Transducer
Block STB.SENSOR_
DETAILED_ STATUS messages
Condition Name and Description
Other
Out of Service
: The actual mode is out of service.
Condition Name and Description
Electronics Failure
: An electrical component failed.
I/O Failure
: An I/O failure occurred.
Software Error
: The software has detected an internal error.
Calibration Error
: An error occurred during calibration of the device.
Algorithm Error:
The algorithm used in the transducer block produced an error due to
overflow, data reasonableness failure, etc.
STB.SENSOR_DETAILED_STATUS
Description
Invalid Configuration
Wrong sensor connection with wrong sensor
type
ASIC RCV Error
The micro detected a chksum or start/stop bit
failure with ASIC communication
ASIC TX Error
The ASIC detected a communication error
ASIC Interrupt Error
ASIC interrupts are too fast or slow
Reference Error
Reference resistors are greater than 25% of
known value
ASIC Configuration Error
ASIC registers were not written correctly. (Also
CALIBRATION_ERR)
Sensor Open
Open sensor detected
Sensor Shorted
Shorted sensor detected
Terminal (Body) Temperature Failure
Open or shorted PRT detected
Sensor Out of Operating Range
Sensor readings have gone beyond
PRIMARY_VALUE_RANGE values
Sensor beyond operating limits
Sensor readings have gone below 2% of lower
range or above 6% of upper range of sensor
Terminal (Body) Temperature Out of
Operating Range
PRT readings have gone beyond
SECONDARY_VALUE_RANGE values
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