51
Reference Manual
00809-0100-4772, Rev FA
Transducer Block
March 2016
Transducer Block
SIMULATION_LOW_POINT 65 When flow simulation is enabled in the transducer block, this will
configure the low point when the signal is ramping up and down. If equal
to SIMULATION_HIGH_POINT, a constant value will be simulated.
SIMULATION_RAMP_PERIOD 66 When flow simulation is enabled, this will configure the time for the
signal to ramp from low to high, and from high to low. Units are in
seconds.
SIMULATION_UNITS 63 This defines the units used to interpret the Simulation High and Low
points. Acceptable values are:
1 = PV Engineering Units: Values are in currently configured engineering
units.
2 = PV Percent of Range: Values are a percent of PV Range.
ST_REV 1 This parameter represents the revision level of the static data associated
with the function block. The revision value will be incremented each
time a static parameter value in the block is changed.
STRATEGY 3 The strategy field can be used to identify groupings of blocks. These data
are not checked or processed by the block.
TAG_DESC 2 This parameter specifies the user description of the intended application
of the block.
TB_ALERT_SIMULATE 110 This parameter is used to enable or disable alert simulation.
TC_FAILURE_MODE 90 In an MTA model transmitter a thermocouple is used to measure the
process temperature and this temperature can be used to calculate the
density of a saturated steam process fluid. This parameter defines the
actions the transmitter takes when a thermocouple failure is detected. It
can continue the density calculation using the configured fixed process
temperature or it can report the failure and bad status for the density
calculation.
1 = Report failure, 2 = Use the substitute value
TEST_CALC_DENSITY 78 This parameter reports the calculated density from the last commanded
test calculation temperature. If no test calculation has been performed
since startup it will report a value of zero. This value is reported in the
engineering units configured for the Fixed Process Density.
TEST_CALC_TEMP 77 This parameter is used to perform a saturated steam density calculation
at a specific temperature. The calculated density can be verified using
standard saturated steam tables. This test calculation can only be
performed if the Process Fluid is TComp Sat Steam. The test calculation
units are specified in TEST_CALC_TEMP_UNITS.
TEST_CALC_TEMP_UNITS 109 Engineering unit for the saturated steam density test calculation
temperature.
TRANSDUCER_DIRECTORY 9 The transducer directory specifies the number and starting indices of the
transducers in the transducer block.
TRANSDUCER_TYPE 10 The transducer type identifies the transducer that follows.
TRIGGER_LEVEL 47 This parameter is an index that represents a minimum vortex shedding
cycle amplitude after filtering. It has a value from 0 to 15, with a default
value of 4. Increasing the value will raise the trigger level, requiring a
greater sensor signal but decreasing susceptibility to noise. Decreasing
the value will lower the trigger level, requiring a lower sensor signal but
increasing susceptibility to noise.
UPDATE_EVT 7 This alert is generated by any change to the static data.
VEL_MEAS_BASE 89 This parameter selects the Velocity measurement base. When velocity
engineering units are used, this will select whether to measure the
velocity through the mating pipe or through the meter body. 1 = Meter
Body (spool), 2 = Mating Pipe
Table 4-1. Transducer Block Parameters
Parameter
Index
number
Definition
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