Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 220)

EAF
Process Control Instructions
Chapter 16
16-9
Table 16.C
Control Word 02 Bit Descriptions: Status and SIgn Bits
00 - K
I
x10 (Set by User)
Do not move decimal = 0
Move decimal to right = 1
01 - K
P
/10 (Set by User)
Do not move decimal = 0
Move decimal = 1
02 - Feedforward/Bias Sign (Set by User)
Pos = 0
Neg = 1
03 - Maximum Scaling Sign (Set by User)
Pos = 0
Neg = 1
04 - Minimum Scaling Sign (Set by User)
Pos = 0
Neg = 1
05 - Set Point Sign (Set by User)
Pos = 0
Neg = 1
06 - Process Variable Sign (Set by Instruction)
Pos = 0
Neg = 1
1
07 - Error Sign (Set by Instruction)
Pos = 0
Neg = 1
1
10 - Resume Control From Last State
Disabled - on first scan, a new CO is calculated
Enabled = on first scan, the accumulated integral value is
backĆcalculated from the last CO value
2
11 - Bumpless Transfer With Proportional Controllers
0 = no adjustment to Bias
1 = bumpless manual to auto mode by adjusting Bias
3
Do not change these values. They are set by the PID function.
This bit should only be set after the PID program has been run to obtain a valid last CO value
Do not change while the processor is operating.
1
2
3