7ć15, Formatting module data (writes) chapter 7, Deadband (words 13 and 42) – Rockwell Automation 1771-QB Linear Pos. User Manual
Page 94: Figure 7.18 deadband, Figure 7.19 deadband word, Position deadband endpoint
Formatting Module Data (WRITES)
Chapter 7
7Ć15
Figure 7.17
PID Band Word
50065
This value times two is the PID 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
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
Deadband (words 13 and 42)
The deadband parameter lets you select an error range on either side of a
commanded endpoint where the integral term of the PID algorithm doesn’t
change.
Figure 7.18
Deadband
50064
Position
Deadband
Endpoint
The module uses the deadband only after the axis crosses the endpoint. The
deadband helps reduce oscillations around the endpoint.
Figure 7.19
Deadband Word
50066
This value times two is the deadband,
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
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...
..
.
..
.
...