Rockwell Automation 5720 DriveLogix System - Manual (Page 58)

Publication 20D-UM002C-EN-P - November 2003
2-24 What Is DriveLogix?
If you increase the time slice to 20%, the system overhead interrupts the
continuous task every 4ms (of continuous task time).
If you increase the time slice to 50%, the system overhead interrupts the
continuous task every 1ms (of continuous task time).
If the controller only contains a periodic task (s), the system overhead timeslice
value has no effect. System overhead runs whenever a periodic task is not
running.
1 ms 1 ms 1 ms 1 ms 1 ms
system overhead
4 ms 4 ms 4 ms 4 ms 4 ms
continuous task
5 10 15 20 25
elapsed time (ms)
1 ms
system overhead
1 ms
continuous task
5 10 15 20 25
elapsed time (ms)
periodic task
system overhead
5 10 15 20 25
elapsed time (ms)