Technical data

4.4.2

MANUAL and AUTOMATIC

WARM RESTART

When is a WARM RESTART

not

permitted?

A MANUAL WARM RESTART is not permitted in the following

situations:

•• when the system is requesting OVERALL RESET

•• after the following events:

- double call of a program processing level (ISTACK: DOPP),

- OVERALL RESET (control bits: URGELOE),

- start-up aborted (control bits: ANL-ABB),

- STOP after the END PROGRAM TEST programmer function,

- when compressing the memory in the STOP mode,

- stack overflow,

- when the user program has been modified in the STOP mode.

MANUAL WARM RESTART

You carry out a MANUAL WARM RESTART as follows:

•• The mode selector is in the mid-position.

•• Switch the mode selector from STOP to RUN.

•• Or use the PLC START programmer function (WARM

RESTART).

RESTART Mode

CPU 928B Programming Guide

C79000-B8576-C898-01

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