Rockwell Automation 1771-PD PID MODULE (+DU) User Manual
Page 223
Summary Word and Bit Tables
Appendix D
DĆ2
Table D.A
Word/Bit Reference
Word or Bit Title
Word Abbr.
Word
Bit
Pg
Alarm bit
SMB
B04
3-50
Alarm conditions, see limit conditions
3-52
Alarm word
W58
3-28
Analog input
READ IN
W64(W71)
3-28
Bias
BIAS
W08(W15)
3-12,3-13
sign bit*
W30(W50)
B01
3-26
source bit*
W30(W50)
B02
3-26
V
PID
+/x bias bit
W19(W39)
B17
3-18
Block identifier bits
control word A, Loop 1
W18
B17=0 B16=1
3-15
control word A, Loop 2
W38
B17=1 B16=0
3-15
master control word
W01
B17=B16=1
3-8
status word
W58
B17=B16=0
3-28
Block start address
dynamic block
W03
3-11
loop block
W04(W11)
3-11,3-13
read next block
W59
3-30
Calibration
enable bit
W01
B13
3-8
input select bits
W02
B17,B16
5-7
Cascade bit*
W30
B00
3-26
Control word
W02
3-11
Control Word A
W18(W38)
3-15
Control Word B
W19(W39)
3-18
Dead band
DB
W23(W43)
3-22
control bit
W18(W38)
B11
3-17
Decouple bit*
W30
B14
3-25
Derivative term
V
D
error source bit
W18(W38(
B03
3-17
gain
K
D
W25(W45)
3-22
limit
V
D
MAX
W27(W47)
3-23
limit bit
W18(W38)
B02
3-18
multiplier bits
W18(W39)
B01,B00
3-21
Enter bit
W01
B03
3-11
Expanded control word
W30(W50)
3-23