Technical data

4Operating Modes and Program
Processing Levels
This chapter provides an overview of the operating statuses and
program execution levels of the CPU 928B. It informs you in detail
about various types of start-up and the organization blocks associated
with them, in which you can program your own sequences for various
situations when restarting.
You will also learn the characteristics of the program execution modes
"cyclic processing", "time-controlled processing" and
"interrupt-driven processing" and will see which blocks are available
for your user program.
4
CPU 928B Programming Guide
C79000-B8576-C898-01
4 - 3