Table of Contents
Advertisement
START-UP Mode
Aborting a cold restart
4.3.2
MANUAL and
AUTOMATIC
WARM RESTART
When is a WARM RESTART
possible and permitted?
4 - 18
You can abort an active COLD RESTART only by changing the mode
selector to STOP or by switching off the power. If you abort a COLD
RESTART you must repeat it.
A MANUAL WARM RESTART is only possible after stoppages
caused by the following:
• • the mode selector was changed from the RUN position to the
STOP position,
• • a stoppage in multiprocessor operation caused by the HALT signal
from the coordinator,
• • POWER OFF, with the appropriate setting in data block DX 0,
• • PG function PLC STOP.
Note
If the stoppage was caused by an event other than those listed
above, then no warm restart is possible. The system program
will only permit a COLD RESTART.
A MANUAL or AUTOMATIC WARM RESTART is only
permitted when
• • the user program was not modified during the stop mode
and
• • a COLD RESTART is not necessary for other reasons (refer to
Section 4.4.1).
CPU 948 Programming Guide
C79000-G8576-C848-04
Advertisement
Table of Contents
