Lcd Transducer Block - Emerson Rosemount 3144P Reference Manual

Reference Manual
00809-0100-4021, Rev EA
March 2007
Table 4-7. Sensor Transducer
Block XD_ERR messages
Table 4-8. Sensor Transducer
Block STB.SENSOR_
DETAILED_ STATUS messages
LCD TRANSDUCER
BLOCK
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.
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.
STB.SENSOR_DETAILED_STATUS
Invalid Configuration
ASIC RCV Error
ASIC TX Error
ASIC Interrupt Error
Reference Error
ASIC Configuration Error
Sensor Open
Sensor Shorted
Terminal Temperature Failure
Sensor Out of Operating Range
Sensor beyond operating limits
Terminal Temperature Out of Operating
Range
Terminal Temperature Beyond Operating
Limits
Sensor Degraded
Calibration Error
The LCD display connects directly to the 3144P electronics F
fieldbus output board. The meter indicates output and abbreviated diagnostic
messages.
The first line of five characters displays the sensor being measured.
If the measurement is in error, "Error" appears on the first line. The second
line indicates if the device or the sensor is causing the error.
Each parameter configured for display will appear on the LCD for a brief
period before the next parameter is displayed. If the status of the parameter
goes bad, the LCD will also cycle diagnostics following the displayed variable:
Rosemount 3144P
Description
Wrong sensor connection with wrong sensor
type
The micro detected a chksum or start/stop bit
failure with ASIC communication
The ASIC detected a communication error
ASIC interrupts are too fast or slow
Reference resistors are greater than 25% of
known value
ASIC registers were not written correctly. (Also
CALIBRATION_ERR)
Open sensor detected
Shorted sensor detected
Open or shorted PRT detected
Sensor readings have gone beyond
PRIMRY_VALUE_RANGE values
Sensor readings have gone below 2% of lower
range or above 6% of upper range of sensor.
PRT readings have gone beyond
SECONDARY_VALUE_RANGE values
PRT readings have gone below 2% of lower
range or above 6% of upper range of PRT.
(These ranges are calculated and are not the
actual range of the PRT which is a PT100 A385)
For RTDs, this is excessive EMF detected.
The user trim has failed due to excessive
correction or sensor failure during the trim
method
OUNDATION
4-11