Emerson 8700 Series, Reference Manual

Page: 124 / 136

Reference Manual
00809-0100-4793, Rev CA
August 2004
Rosemount 8742C
D-2
PARAMETERS AND
DESCRIPTIONS
Table D-1 lists all of the configurable parameters of the transducer block,
indicating the descriptions and index numbers for each parameters.
Table D-1. Transducer Block
Parameters
Parameter Index Number Definition
ALERT_KEY 4 ID number of the transmitter–may be used on the host for sorting alarms
BLOCK_ALM 8 Block alarm
BLOCK_ERR 6 Reflects the error status associated with hardware or software components
associated with a block
CAL_MIN_SPAN 18 Minimum calibrated span value allowed–this minimum span information is necessary
to ensure that the two calibrated points (high and low) are not too close together
CAL_POINT_HI 16 Highest calibrated value
CAL_POINT_LO 17 Lowest calibrated value
CAL_UNIT 19 Engineering units code index for calibration values
COIL_DRIVE_CURRENT 36 Current at which the coils are being driven (500 mA)
COIL_DRIVE_FREQUENCY 35 Frequency at which the coils are being driven (5 or 37.5 Hz)
COLLECTION_DIRECTORY 12 Directory that specifies the number, starting indices, and DD item IDs of the data
collections in each transducer within a transducer block
DAMPING 30 Damping filter value (in seconds)
DENSITY_UNIT 31 Unit code associated with DENSITY_VALUE. Valid values are lb/cubic feet, or
kg/cubic meter
DENSITY_VALUE 75 User entered density value to be used by the transducer block when calculating flow
rate in mass flow units
DSP_SOFTWARE_REV_NUM 49 DSP software Rev Number–major, minor, build
FLOW_TUBE_LINE_SIZE 34 Inside diameter of flowtube (in millimeters)–see Table D-2
for supported enumerated line sizes.
LOW_FLOW_CUTOFF 37 When flow rate is less than this entered value, flow rate output will be set to 0 ft/s
MODE_BLK 5 Mode of the record of the block–contains the actual, target, permitted,
and normal modes
PRIMARY_VALUE 14 Measured value and status
PRIMARY_VALUE_RANGE 15 High and low range limit values, engineering units code, and number of digits to the
right of the decimal point to be used to display the primary value–see Table D-3.
PRIMARY_VALUE_TYPE 13 Type of measurement represented by the primary value
SENSOR_CAL_DATE 25 Date of the last sensor calibration–intended to reflect the calibration of the sensor
SENSOR_CAL_LOC 24 Location of the last sensor calibration–describes the physical location at which the
calibration was performed
SENSOR_CAL_METHOD 23 Method of the last sensor calibration–ISO defines several standard methods of
calibration (This parameter is intended to record that method or if some other method
was used.)
SENSOR_CAL_WHO 26 Name of the person responsible for the last sensor calibration
SENSOR_RANGE 21 High and low range limit values, engineering units code, and number of digits to the
right of the decimal point for the sensor–see Table D-3.
SENSOR_SN 22 The sensor serial number.
SENSOR_TYPE 20 Sensor type.
STRATEGY 3 Can be used to help group the blocks (Not checked or processed by the block)
ST_REV 1 Static Revision–incriminated when parameter changed.
TAG_DESC 2 Static tag–ASCII character string
TRANSDUCER_DIRECTORY 9 Directory that specifies the number and starting indices of the transducers in the
transducer block.
TRANSDUCER_TEMP 44 Calculated transmitter temperature with status.
TRANSDUCER_TYPE 10 Identifies the transducer.
TUBE_CAL_NO 33 Flowtube gain and zero offset number used in flow calculation
(Number entered is locate on physical tag of the flowtube.)
UPDATE_EVT 7 Update event
XD_ERROR 11 Transducer error