Rockwell Automation 1771-PD PID MODULE (+DU) - Manual (Page 231)

Summary Word and Bit Tables
Appendix D
DĆ10
Table D.E
Control Word B W19(W39)
Bit Title Status
B17 VPID+/xBias 0=for V=VPID + BIAS
1= for V (VPID X BIAS)/4095
B16 Output Limiting 0=reset
1= Limits output V to V MIN in W28(W48) and to V MAX in W29(W49)
B15,B14,
B13
Soft fault mode selection 000=Output goes to minimum value (+1V DC or +4mA).
001=Output holds last state.
010=Output goes to SET OUT value in W05(W12) if W01
B01(B02) = 1. If = 0, PID control continues.
100=PID control continues or it resumed if output had been set.
111= Output goes to maximum value (5V DC or +20mA).
B12 TA multiplier 0=x1
1=x10
Input time constant TA is stored in W20(W40).
B11 TB multiplier 0=x1
1=x10
Lead time constant TB is stored in W35(W56).
B10 TC multiplier 0=x1
1=x10
Lag time constant TC is stored in W36(W56).
B07 Scaled SP sign 0=+
1=-
Set point is stored in W06(W13).
B06 Scaling word multiplier 0=x1
1=x10
for W06(W13, W31(W51, W32(W52, W62(W69) and
W65(W72) when scaled
B05,B04 Proportional gain
multiplier for W07
(W14)
00=x1
01=divided by 10
B03,B02 Integral gain multiplier
for W24(W44) 10=x10
11=x100
Multiplier codes 00 thru 11 apply to bits B05 thru B00.
B01,B00 Derivative gain multiplier for W25(W45)