Emerson Rosemount OCX 8800 Reference Manual page 167

Table 7-27: PID function block system parameters
Parameter
ST_REV
STRUCTURE CONFIG
TAG_DESC
TRK_IN_D
TRK_SCALE
TRK_VAL
UBETA
UGAMMA
UPDATE_EVT
Reference Manual
Index number
01
75
02
38
37
39
72
71
43
(continued)
Units
None
None
None
None
None
EU of TRK SCALE
Percent
Percent
None
Foundation Fieldbus
Descriptions
The revision level of the
static data associated with
the function block. The revi-
sion value will be incremen-
ted each time a static pa-
rameter value in the block is
changed.
Defines PID equation struc-
ture to apply controller ac-
tion.
The user description of the
intended application of the
block.
Discrete input that intiates
external tracking.
The high and low scale val-
ues, engineering units code,
and number of digits to the
right of the decimal point
associated with external
tracking value (TRK_VAL).
The value (after scaling from
TRK_SCALE to OUT_SCALE)
applied to OUT in LO mode.
Used to set disturbance re-
jection vs. tracking response
action for a 2.0 degree of
freedom PID.
Used to set disturbance re-
jection vs. tracking response
action for a 2.0 degree of
freedom PID.
This alert is generated by
any changes to the static
data.
157