5. BLOCK SETTING
5-3
All Rights Reserved. Copyright © 2006, Rota Yokogawa
IM 01R01B02-01E-E 5th edition October 01, 2020 -00
5.4 Transducer Block (TB) Parameters
All important Transducer Block parameters are listed below and described with more details to guide through the
settings.
TARGET_MODE:
Indicates what mode of operation is desired for the Transducer Block. Two block modes are available:
• Out of Service (O/S)
• Auto (AUTO)
MODE_BLK:
The sub-parameter “Actual” indicates the actual mode which is one of the target modes. The actual mode
may differ from the target mode:
• Out of Service: sets the status of the Process Variables to “BAD…”
• Auto: Block function able to work.
NOMINAL_SIZE:
Shows the size of the ow tube in mm or inches.
NOMINAL_SIZE_UNIT:
Sets the unit of the ow tube size (in mm or inches).
VOLUME_FLOW_UNIT:
The units in table 5.5 are selectable. Presetting is determined by order.
LOW_FLOW_CUTOFF:
Sets low cut range for output. Setting range is 5 to 15 % of VOLUME_FLOW_HI_LIMIT or
MASS_FLOW_HI_LIMIT. Factory setting: “ 5 %”
VOLUME_FLOW:
Indicates the current measured value and status of the Process Variable (volumetric ow). This parameter is
an input to the AI Function Block, if a volumetric unit is selected on the scale.
MASS_FLOW_UNIT:
The units in table 5.5 are selectable. Presetting is determined by order.
MASS_FLOW
Indicates the current measured value and status of the Process Variable (mass ow). This parameter is an
default input to the AI Function block, if a mass ow unit is selected.
TEMPERATURE_UNIT
The unit in table 5.1 is determined by order and derived from the selected ow unit.
Table 5.1 Units for Indicator temperature
Unit Symbol Unit Description Unit Code
°C Degree Celsius 1001
°F Degree Fahrenheit 1002
K Kelvin 1000
TEMPERATURE
Indicates the indicator temperature value as selected by TEMPERATURE_UNIT.
This parameter can not be used for cyclic communication on AI Function Block.
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