Emerson Rosemount 2240S, Reference Manual, Page: 179 / 194

169
F
OUNDATION
™
Fieldbus Block Information
F
OUNDATION
™
Fieldbus Block Information
October 2017
Reference Manual
00809-0100-2240, Rev DA
C.5 Measurement transducer block
The Measurement Transducer block contains the actual measurement data, including temperature,
water level readings, and pressure. Channels 1-10 are assigned to these measurements. The transducer
block includes information about sensor type, engineering units, and all parameters needed to configure
the transmitter.
Table C-6. Measurement Transducer Block Parameters
Index
Number
Parameter Description
1 ST_REV The revision level of the static data associated with the
function block. The revision value increments each time a
static parameter value in the block is changed.
2 TAG_DESC The user description of the intended application of the block.
3 STRATEGY The strategy field can be used to identify grouping of blocks.
This data is not checked or processed by the block.
4 ALERT_KEY The identification number of the plant unit. This information
may be used in the host for sorting alarms, etc.
5 MODE_BLK The actual, target, permitted, and normal modes of the
block.
Target: The mode to “go to”
Actual: The mode the “block is currently in”
Permitted: Allowed modes that target may take on
Normal: Most common mode for target
6 BLOCK_ERR This parameter reflects the error status associated with the
hardware or software components associated with a block. It
is a bit string, so that multiple errors may be shown.
7 UPDATE_EVT This alert is generated by any change to the static data.
8 BLOCK_ALM 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 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.
9 TRANSDUCER_DIRECTORY Directory that specifies the number and starting indices of
the transducers in the transducer block.
10 TRANSDUCER_TYPE Identifies the transducer.
11 TRANSDUCER_TYPE_VER
12 XD_ERROR A transducer block alarm subcode. Provides additional error
codes related to transducer blocks.
13 COLLECTION_DIRECTORY A directory that specifies the number, starting indices, and
DD Item ID’s of the data collections in each transducer within
a transducer block.
14 HOUSING_TEMPERATURE Temperature inside radar gauge housing
15 TEMPERATURE_UNIT Measurement unit for temperature
16 WATER_LEVEL Water level at the bottom of the tank
17 WATER_LEVEL_UNIT Measurement unit for Water Level