Emerson 644 manual Description, Calibrationerr

Rosemount 644

Reference Manual

00809-0400-4728, Rev AA June 2011

Table 3-5. Sensor Transducer Block STB.SENSOR_ DETAILED_ STATUS messages

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 A/D 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	Citadel registers were not written correctly. (Also
	CALIBRATION_ERR)
Sensor Open	Open sensor detected
Sensor Shorted	Shorted sensor detected
Terminal Temperature Failure	Open PRT detected
Sensor Out of Operating Range	Sensor readings have gone beyond
	PRIMRY_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 Temperature Out of Operating	PRT readings have gone beyond
Range	SECONDARY_VALUE_RANGE values
Terminal Temperature Beyond Operating	PRT readings have gone below 2% of lower
Limits	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)
Sensor Degraded	For RTDs, this is excessive EMF detected. This
	is thermocouple degradation for thermocouples.
Sensor Error	The user trim has failed due to excessive
	correction or sensor failure during the trim
	method

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