Rockwell Automation 9323-PA1E QUICK START GUIDE APS 6.0 - Manual (Page 18)

Control Basics
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Control Basics
This chapter introduces you to basic concepts essential for understanding how the
SLC 500 controller operates. It covers:
•
SLC 500 file concepts
•
how external I/O devices communicate with the processor
•
addressing external I/O
•
ladder logic concepts