Flowserve MX FOUNDATION Fieldbus Field Unit - Manual (Page 52)

MX/QX FOUNdaTION Fieldbus Field Unit FCd LMENIM2330-01 – 08/11
52
Transducer Block Parameters Description
XD_ERROR One of the transducer error codes defined in the FF Transducer
Specifications. Refer to Section 4.8 of FF-903.
COLLECTION_DIRECTORY A directory that specifies the number, starting indices, and DD Item IDs
of the data collections in each transducer within a transducer block. For
further information, please refer to the Transducer Block Application
Process – Part 1 (FF-902) specification.
FINAL_VALUE The proposed valve position and status written by an analog Function
Block.
Status Digital transducers, unlike their analog versions, can detect faults that
make the measurement bad or prevent the actuator from responding.
This additional, valuable information is passed along in the form of a
status attribute with each transmission of a data value.
Value A numerical quantity received by the block parameter from another
block parameter to which this block is linked. Or a default or user
entered value if the parameter has not been linked.
FINAL_VALUE_RANGE The High and Low range limit values, the engineering unit’s code, and
the number of digits to the right of the decimal point to be used to
display the Final Value.
EU at 100% The engineering unit value that represents the upper end of range of the
associated block parameter.
EU at 0% The engineering unit value that represents the lower end of range of the
associated block parameter.
Units Index Device Description units code index for the engineering unit descriptor
for the associated block value.
Decimal The number of digits to the right of the decimal point that should be
used by an interface device in displaying the specified parameter.
FINAL_VALUE_CUTTOFF_HI If the FINAL_VALUE is more positive than this value, the value is forced
to its maximum high value (fully opened).
FINAL_VALUE_CUTTOFF_LO If the FINAL_VALUE is more negative than this value, the value is forced
to its maximum low value (fully closed).
FINAL_POSITION_VALUE The actual valve position and status, could be used at the READBACK in
an AO block.
Status Digital transducers, unlike their analog versions, can detect faults that
make the measurement bad or prevent the actuator from responding.
This additional, valuable information is passed along with each
transmission of a data value in the form of a status attribute.
Value A numerical quantity received by the block parameter from another
block parameter to which this block is linked. Or a default or user
entered value if the parameter has not been linked.
ACT_FAIL_ACTION Specifies the action the actuator takes in case of failure.
ACT_MAN_ID The actuator manufacturer’s identification number as defined by the
Fieldbus Foundation.
ACT_MODEL_NUM The actuator model number.
ACT_SN The actuator serial number.
VALVE_MAN_ID The valve manufacturer’s identification number as defined by the
Fieldbus Foundation.
VALVE_MODEL_NUM The valve model number. Reference Bulletin LMENIM2306 for the MX
or LMENIM3306 for the QX.
VALVE_SN The valve serial number. Reference Bulletin LMENIM2306 for the MX or
LMENIM3306 for the QX.