11-1
Chapter 11 CPU Module Operating Principles
Table of Contents
11.1 CPU Module Operations ................................................................... 11-2
11.1.1 Procedure ................................................................................... 11-2
11.1.2 I/O Refreshing and Communication Service ..................................... 11-3
11.2 CPU Module Operating Modes .......................................................... 11-3
11.2.1 Operating Modes .......................................................................... 11-3
11.2.2 Status and Operation under Different Operating Modes ..................... 11-4