Rockwell Automation 1771-PD PID MODULE (+DU) - Manual (Page 97)

Programming
Chapter 3
3Ć54
START
FEEDFORWARD
W30 B13
PC FFI
(FROM PC)
NO
DECOUPLE
W30 B11
FFI CHANGE
W30 B12
S
FFI
FFI+FF0
X (K )
W30 B10
PERFORM
W30 B05
F
W30 B02
FFV NO (FFV)
YES
VALUE FROM
TIEBACK
C
B
DECOUPLE
LOOP2
PERFORM
(NORMALIZED)
X(-1)
FEEDFORWARD
K
X K
K (FF0
TB
TC
TB=0 TC=0 MEANS OFF
SET THRU
BIAS
(BIAS ENTRY
CHANGE
X(-1)
W01 B14
EXPANDED
/
W18 B00
HOLD
HOLD LAST
ENTER
FEEDFORWARD VALUE
BIAS
W30 B01
STANDARD
THE PATH TO THIS
FROM
IF DE-
PID
+/X
V
1: V=(V ) (BIAS)
0: V=V + BIAS
W19 B17
V < V MIN V > V MAX
IF V
V MAX
V MIN
W19 B16
OUTPUT
CASCADE
LOOP 2
SEND VALUE
TO CASCADE
D
READ V
3
SET
SET ANALOG
SET ANALOG
BUMPLESS
D / A
MANUAL
W01 B00
HARDWARE
W61 B05 (LOOP 1)
TO FEEDFORWARD
ANALOG TIEBACK INPUT LOSS OF TIEBACK
11120
TIEBACK ANALOG INPUT
A / D
AUTO/
TO CONTROL
.
MANUAL
SINGLE
MAN/AUTO
HARDWARE
EXPANDED
FEATURES
(W50 B13)
INPUT W10 (W17)
4095 B/ B 12
OR
TIEBACK
NO NO NO NO
NO
NO
NO
NO NO NO
V
YES YES YES
YES
YES
YES
YES
YES
YES
YES YES
YES
PID
FROM SHEET 2
INPUT
FROM SHEET 3
TIEBACK
V
COUPLING
WAS SE-
LECTED
VALUE IS
INPUT HERE
ONLY.
ENABLED
BY W30
B14
(W50 B11)
SQUARE
ROOT
(W50 B12)
SIGN
OFFSET (FF0)
9999
W33 (W53)
(W50 B10)
(W50 B05)
LEAD-LAG
F
F
99.99
W34 (W54)
MW30 B07, 06
(MW50 B07, 06)
99.99
W36 (W66)
MW19 B10
(MW39 B10)
99.99
W35 (W55)
MW19 B11
(MW39 B11)
(W50 B02)
.9999
W67 (W74)
(SW68 B13)
SW61B13
OR
PC BIAS
PC
9999
W08 (W15)
BIAS ENTRY
(EXPANDED LOOP)
SIGN
(EXPANDED)
(W38 B00)
BIAS
BIAS (FFV)
LOOP
SELECTED
(W50 B01)
(STANDARD)
BIAS
STANDARD LOOP)
9999
W08 (W15)
FEATURES
POINT HAS MEANING
ONLY WHEN EXPANDED
FEATURES ARE SELECTED
SHEET
2
(W39 B16)
LIMIT
(W39 B17)
4095
PID
PID
W61 B01
(W68 B01)
W61 B00
(W68 B00)
V MIN, SET
V=V MIN
IF V
V MAX, SET
V=V MAX
ONLY.
ENABLED BY
W30 B00
OF LOOP 1
TO SP OF
LOOP 2
SHEET 2
DIRECT
OUTPUT
FROM PC
VALUE
TRANSFER
W63 (W70)
4095 B / B
W01 B12
OUTPUT
4095 B/B W01 B12
W05 (W12)
ANALOG
OUTPUT
V
REQUEST
(ONE SHOT)
FAULT
SET BY PID
MODULE
W68 B05 (LOOP 2)
REQUEST
OUTPUT
MANUAL
STATION
(OPTIONAL)
DEVICE
C
LW30 B13
(W50 B13)
SHEET 3
INPUT
W61 B06
(W68 B06)
4095 B / B W01 B12
VALUE W66 (W73)
4095
W28 (W48)
4095
W29
(W49)
I
+ FFI)
W01 B01 (LOOP 1)
W01 B02 (LOOP 2)
TB S +1
TC S +1
(FFV)
BIAS (FFV)
SET
READ