120 Rockwell Automation Publication MOTION-UM002E-EN-P - June 2016
Chapter 8 Configure Camming
Figure 59 - Forward Only, Reverse Only, or Bidirectional Execution
The Position Cam Status bit of the Motion Status word for specified slave axis
is set. This process occurs when the absolute position of the master axis passes
the specified Master Lock Position in the specified direction. Slave axis motion
is then initiated according to the specified cam profile starting at the specified
Cam Lock Position of the cam profile.
IMPORTANT The cam profile generator monitors the master axis based on the absolute
position reference system in effect before the redefine position operation.
This process only occurs if the position reference of the master axis is
redefined with a Motion Redefine Position (MRP) instruction after the MAPC
instruction executes but before the lock condition is satisfied.
Master
Start
Position
Position Cam Lock Status
Position Cam
Initiated
Cam Profile
Position Cam Status
Slave Axis
Position
Master Axis
Position
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