Rockwell Automation 5720 DriveLogix System - Manual (Page 36)

Publication 20D-UM002C-EN-P - November 2003
2-2 What Is DriveLogix?
Developing programs The controller operating system is a preemptive multitasking system that is
IEC 1131-3 compliant. This environment provides:
• tasks to configure controller execution
• programs to group data and logic
• routines to encapsulate executable code written in a single programming
language
control application
controller fault handler
task 8
task 1
configuration
status
watchdog
program 32
program 1
main routine
fault routine
program (local)
tags
other routines
controller (global) tags I/O data system-shared data