Rockwell Automation 1771-QB Linear Pos. - Manual (Page 24)

Positioning Concepts
Chapter 2
2Ć8
You can control the integral and derivative components by defining a PID
(proportional, integral and derivative) band. The PID band is a region
surrounding the programmed endpoint where the system enables integral or
derivative terms. As a result, the integral and derivative components affect only
the final positioning of the axis.