User manual

Rockwell Automation Publication MOTION-UM003F-EN-P - March 2015 85
Configure Axis Scheduling Chapter 3
The Base Update Period on the Attribute tab becomes active.
Notice that after you have made all update periods in the Axis Schedule
Panel, the update period values are the same and the Base Update Period is
now active. The Alternate Update Periods are always read-only.
2. Change the Base Update Period.