Flowserve MX FOUNDATION Fieldbus Field Unit User Manual
Page 78
MX/QX FOUNdaTION Fieldbus Field Unit FCd LMENIM2330-01 – 08/11
78
SP_RATE_UP
Ramp rate at which upward setpoint changes are acted on in Auto mode, in PV units per second.
If the ramp rate is set to zero, then the setpoint will be used immediately. For control blocks, rate
limiting will apply only in Auto. For output blocks, rate limiting will apply in Auto, Cas, and RCas
modes.
ST_REV
The revision level of the static data associated with the function block. To support tracking changes
in static parameter attributes, the associated block’s static revision parameter will be incremented
each time a static parameter attribute value is changed. Also, the associated block’s static revision
parameter may be incremented if a static parameter attribute is written but the value is not changed.
STATUS_OPTS
Options, which the user may select in the block processing of status.
STRATEGY
The strategy field can be used to identify grouping of blocks. This data is not checked or processed
by the block.
TAG_DESC
The user description of the intended application of the block.
TEST_RW
Read/write test parameter - used only for conformance testing.
TRANSDUCER_DIRECTORY
A directory that specifies the number and starting indices of the transducers in the transducer block.
For further information, please refer to the Transducer Block Application Process – Part 1 (FF-902)
specification.
TRK_IN_D
This discrete input is used to initiate external tracking of the block output to the value specified by
TRK_VAL.
TRK_SCALE
The high and low scale values, engineering units code, and number of digits to the right of the
decimal point, associated with TRK_VAL.
TRK_VAL
This input is used as the track value when external tracking is enabled by TRK_IN_D.
UPDATE_EVT
This alert is generated by any change to the static data.
WRITE_ALM
This alert is generated if the write lock parameter is cleared.
WRITE_LOCK
If set, no writes from anywhere are allowed, except to clear WRITE_LOCK. Block inputs will continue
to be updated.
WRITE_PRI
Priority of the alarm generated by clearing the write lock.