CPUs, Memory Cards, Memory Submodules, Interface Submodules
Status Indicators
5-76
RUN
STOP
Status
LED
LED
on
off
The CPU is in the RUN state.
off
on
The CPU is in the STOP state. After a stop
request by switch or PG function, the STOP LED
is continuously lit because the transition to the
STOP state was requested by the user or, in
multiprocessor operation, by another CPU, and
was not caused by the CPU itself.
off
off
The CPU is in the INITIAL START or program
check state.
off
slow
The CPU is in the STOP state. The CPU has
flashing
caused a transition to the STOP state (possibly
also for the other CPUs). If you set the mode
switch to STOP, the flashing LED becomes
continuously lit.
off
rapid
The CPU is in the STOP state. An overall reset
flashing
has been requested. This request can be initiated
by the CPU itself or by operator action.
System Manual
C79000-G8576-C199-06