Instruction Manual

Instruction Manual
D103434X012
Blocks
November 2014
95
Table B‐12. PID Function Block System Parameters Definitions (Continued)
DescriptionInitial ValueRange
Block
Mode
RO /
RW
Index
Number
Label
PARAMETER_NAME
Remote Cascade Output
RCAS_OUT
35 RO NA Dynamic
Data Type: DS‐65
Block setpoint and status after ramping, filtering,
and limiting that is provided to a supervisory host
for back calculation to allow action to be taken
under limiting conditions or mode change. Used
when mode is RCAS.
Remote Out Output
ROUT_OUT
36 RO NA Dynamic
Data Type: DS‐65
Block output that is provided to a supervisory host
for a back calculation to allow action to be taken
under limiting conditions or mode change. Used
when mode is RCAS.
Tracking Scale
TRK_SCALE
37
MAN
OOS
100
0
%
2
Data Type: DS‐68
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).
Tracking Input Discrete
TRK_IN_D
38 ALL
Status
BAD:
NC:
const
Data Type: DS‐66
Discrete input that initiates external tracking of
the block output to the value specified by
TRK_VAL.
Value 0
Tracking Value
TRK_VAL
39 ALL
Status
BAD:
NC:
const
Data Type: DS‐65
The value (after scaling from TRK_SCALE to
OUT_SCALE) applied to OUT in LO mode when
external tracking is enabled by TRK_IN_D.
Value 0
Feed Forward Value
FF_VAL
40 ALL
Status
BAD:
NC:
const
Data Type: DS‐65
The feedforward control input value and status.
Value 0
Feed Forward Scale
FF_SCALE
41
MAN
OOS
100
0
%
2
Data Type: DS‐68
The high and low scale values, engineering units
code, and number of digits to the right of the
decimal point associated with the feedforward
value (FF_VAL).
Feed Forward Gain
FF_GAIN
42
MAN
OOS
0
Data Type: Float
The feedforward gain value. FF_VAL is multiplied
by FF_GAIN before it is added to the calculated
control output. A value of 0 disables feedforward.
Update Event
UPDATE_EVT
43
Data Type: DS‐73
This alert is generated by any changes to the static
data.
UNACKNOWLEDGED 43.1 RW NA
0=Undefined
1=Acknowledged
2=
Unacknowledged
0
UPDATE_STATE 43.2 RO NA
0=Undefined
1=Update reported
2=Update not reported
0
TIME_STAMP 43.3 RO NA 0
STATIC_REVISION 43.4 RO NA 0
RELATIVE_INDEX 43.5 RO NA 0
Block Alarm
BLOCK_ALM
44
Data Type: DS‐72
The block alarm is used for all configuration,
hardware, connection failure, or system problems
in the block. The cause of the alarm will be set in
the subcode.
VALUE Data Type: Unsigned8
UNACKNOWLEDGED 44.1 RW NA
0=Undefined
1=Acknowledged
2=
Unacknowledged
0
ALARM_STATE 44.2 RO NA
0=Undefined
1=Clear‐reported
2=Clear‐not reported
3=Active reported
4=Active not reported
0
TIME_STAMP 44.3 RO NA 0
SUBCODE 44.4 RO NA 0
VALUE 44.5 RO NA 0
-Continued-