User manual

Publication 1768-UM001C-EN-P - November 2007
80 Develop Applications
Select a System
Overhead Percentage
With RSLogix 5000 programming software, you can specify a percentage for
the system overhead, or time slice. The system overhead time slice specifies the
percentage of controller time, excluding the time for periodic tasks, devoted to
communication and background functions.
To select a system overhead percentage slice, perform this procedure.
1. In the Controller Organizer of RSLogix 5000 programming software,
right-click the controller and choose Properties.
The Controller Properties dialog appears.
2. Click the Advanced tab.
a. From the Controller Fault Handler pull-down menu, choose the
program that will run as the result of a system fault.
b. From the Power-Up Handler pull-down menu, choose the program
the processor executes when it starts in Run mode after having been
powered down in Run mode.