Rockwell Automation 1771-QB Linear Pos. - Manual (Page 93)

Formatting Module Data (WRITES)
Chapter 7
7Ć14
If you leave the in-position band undefined (at zero), the module automatically
defaults to twice the value of the position resolution. For one circulation, this
would be 0.004 inches.
Figure 7.15
InĆPosition Band Word
50006
This value times two is the inĆposition band,
BCD or binary
9.999 inch or 99.99 mm max
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
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PID Band (words 12 and 41)
If the axis is within the PID band and the desired velocity is zero, the module
enables the integral and derivative components for final positioning of the axis.
(See Chapter 2.) If the PID band is programmed to zero, the integral and
derivative terms remain disabled.
Figure 7.16
PID Band
50063
Position
PID band
Endpoint
The maximum value of the PID band word is 9.999 inches or 99.99 mm.