Rockwell Automation 1771-QB Linear Pos. - Manual (Page 139)

Advanced Features
Chapter 9
9-8
Default I/O Configuration
If you do not download the programmable I/O control word, the module
defaults both axes to:
INPUT 1 positive edge trigger
INPUT 2 high level trigger
OUTPUT 1 in-position output
OUTPUT 2 loop fault output
A motion segment consists of a setpoint, trigger conditions, and
programmable output options. (See Figure 9.2.)
Motion Segment Control Words
The motion segment control words (see Figure 9.5) contain the current
motion segment ID number, trigger conditions, the next motion segment
ID number, and programmable output specifications. When the trigger
conditions are satisfied, the motion segment identified by the next motion
segment ID is executed and the programmable outputs are updated based
on the trigger output and output control bits.
Control Word 1: Bits 0 to 6 - Next Motion Segment ID
These bits identify the next motion segment to be executed when this
motion segment’s trigger conditions are satisfied. In order for the next
motion segment to be successfully executed, you must ensure that the
motion segment referenced by the next motion segment ID is defined. If
the next motion segment ID is set to 0, it causes a slide stop when the
trigger conditions are satisfied.
Control Word 1: Bits 8 to 14 - Motion Segment ID
These bits contain a unique identification number between 14 and 127
(selected by the user), in binary format, for the current motion segment.
This allows it to be referenced by another motion segment.
Motion Segments