User manual

Publication 1768-UM001C-EN-P - November 2007
82 Develop Applications
At a time slice of 10%, system overhead interrupts the continuous task every 9
ms (of continuous task time).
The interruption of a periodic task increases the elapsed time (clock time)
between the execution of system overhead functions.
If you use the default time slice of 20%, the system overhead interrupts the
continuous task every 4 ms.
Legend:
Task executes.
Task is interrupted (suspended).
Periodic
1 ms 1 ms
System Overhead
9 ms 9 ms
Continuous Task
0 5 10 15 20 25
Elapsed Time (ms)
1 ms 1 ms 1 ms 1 ms 1 ms
Periodic Task
1 ms 1 ms
System Overhead
9 ms of Continuous Task Time 9 ms of Continuous Task Time
Continuous Task
0 5 10 15 20 25
Elapsed Time (ms)
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 10152025
Elapsed Time (ms)