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Emerson Rosemount OCX8800
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Instruction Manual
IM-106-880C, OI
Section 7: Foundation
Fieldbus
April 2017
Proportional/ Integral/Derivative (PID) Function
Block
13
3
Parameter
Index
Number
Units
Description
ST_REV
01
None
The revision level of the static data associated with the function block.
The revision value will be incremented each time a static parameter val-
ue in the block is changed.
STRUCTURE
CONFIG
75 None Defines PID equation structure to apply controller action.
TAG_DESC 02 None The user description of the intended application of the block.
TRK_IN_D 38 None Discrete input that initiates external tracking.
TRK_SCALE 37 None The high and low scale values, engineering units code, and number of
digits to the right of the decimal point associated with the external
tracking value (TRK_VAL).
TRK_VAL 39 EU of TRK SCALE The value (after scaling from TRK_SCALE to OUT_SCALE) applied to
OUT in LO mode.
UBETA 72 Percent Used to set disturbance rejection vs. tracking response action for a 2.0
degree of freedom PID.
UGAMMA 71 Percent Used to set disturbance rejection vs. tracking response action for a 2.0
degree of freedom PID.
UPDATE_EVT 43 None This alert is generated by any changes to the static data.

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