Rockwell Automation 1771-PD PID MODULE (+DU) User Manual
Page 225
Summary Word and Bit Tables
Appendix D
DĆ4
Word or Bit Title
Word Abbr.
Word
Bit
Pg
multiplier bits
W19(W39)
B03,B02
3-21
Lead/lag bit*
W30(W50)
B05
3-25
Limit bits
derivative term
W18(W38)
B02
3-18
error max/min
W18(W38)
B12
3-17
integral term
W18(W38)
B10
3-17
output max/min
W19(W39)
B16
3-18
Limit condition bits
E W61(W68) B11 3-25 E W61(W68) B15 3-25 E>EMP W61(W68) B14 3-25 V>VMAX W61(W68) B00 3-37 V W61(W68) B01 3-37 V D D>VDMAX W61(W68) B02 3–37 V I >VIMAX W61(W68) B10 3-35 V P >4095 W61(W68) B03 3-37 Limit values derivative term V D MAX W27(W47) 3-23 error(+)max EMP W22(W42) 3-21 error(-)max EMP W21(W41) 3-21 integral term V I MAX W26(W46) 3-22 output max VMAX W29(W49) 3-23 output min VMIN W28(W48) 3-23 scaling max* SMAX W32(W52) 3-26 scaling min* SMIN W31(W51) 3-26 Load bit W01 B06 3-10 Load/enter complete bit W61 B12 3-25 Loop error ERROR W62(W69) 3-37 polarity W18(W38) B13 3-15 scaling bit* W30(W50) B15 3-25 sign bit W61(W68) B17 3-35 Local error limits limit enable bit W18(W38) B12 3-17 max negative limit EMN W21(W41) 3-21 max positive limit EMP W22(W42) 3-21 Loop features bit W01 B14 3-8
(direct/reverse)bit
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