Parameters And Descriptions - Emerson Rosemount 644 FOUNDATION Reference Manual

Reference Manual
00809-0400-4728, Rev CA
B.2.1 Parameters and descriptions
Table B-2. Sensor Transducer Block Parameters and Descriptions
Parameter
ALERT_KEY
BLOCK_ALM
BLOCK_ERR
CAL_MIN_SPAN
CAL_POINT_HI
CAL_POINT_LO
CAL_UNIT
COLLECTION_DIRECTORY
ASIC_REJECTION
FACTORY_CAL_RECALL
USER_2W_OFFSET
INTER_DETECT_THRESH
Foundation Fieldbus Block Information
Index
Description
number
04 The identification number of the plant unit.
The block alarm is used for all configuration,
hardware, connection failure or system
problems in the block. The cause of the alert
is entered in the subcode field. The first alert
to become active will set the Active status in
08
the Status parameter. As soon as the
Unreported status is cleared by the alert
reporting task, another block alert may be
reported without clearing the Active status,
if the subcode has changed.
This parameter reflects the error status
associated with the hardware or software
06 components associated with a block. It is a
bit string, so that multiple errors may be
shown.
The minimum calibration span value
allowed. This minimum span information is
18 necessary to ensure when calibration is
done, the two calibrated points are not too
close together.
16 The highest calibrated value.
17 The lowest calibrated value.
The device description engineering units
19
code index for the calibration values.
A directory that specifies the number,
12 starting indices, and DD Item ID's of the
data collections in each transducer.
Indicates the type of material that the drain
42 vents on the flange are made of. See Drain
Vent Material Codes.
Recalls the sensor calibration set at the
32
factory.
Indicates the type of material that the
36 flange is made of. See Flange Material
Codes.
Indicates the type of flange that is attached
35
to the device. See Flange Type Codes.
F Fieldbus Block Information
OUNDATION
Notes on how changing this
parameter effects transmitter
operation
No effect on operation of transmitter but
may affect the way alerts are sorted on
the host end.
No effect.
No effect.
No effect.
Assigns a value to the calibration high
point.
Assigns a value to the calibration low
point.
Device must be calibrated using the
appropriate engineering units.
No effect.
N/A
N/A
N/A
N/A
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