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Technical Description
Changing the Operating Mode
After power restora-
tion, if the previous
PLC state was STOP.
After power restoration, if
the previous PLC state
was RUN or RESTART.
Figure 2-11. Conditions for Changing the Operating Mode
2-20
STOP
- The mode selec-
tor is set from
STOP to RUN
- RUN is selected
on a program-
mer
Cold restart
routine
RESTART
- The restart
block is pro-
cessed
RUN
- The control
program is
destroyed (e.g.
RAM is erased
after battery
fails)
- The mode selec-
tor is set from
RUN to STOP
- Causes of
interrupts
(see Section 5.1)
- The mode selec-
- The mode selec-
tor is set from
tor is set from
RUN to STOP
RUN to STOP
- Causes of
- STOP is selected
interrupts
on a programmer
(see Section 5.1)
- Causes of
interrupts
(see Section 5.1)
EWA 4NEB 811 6130-02b
S5-115U Manual
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