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Siemens S5-135U/155U - Page 166

Siemens S5-135U/155U
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5-26
System Manual
C79000-G8576-C199-06
You can also carry out a manual restart of the CPU 948 with the mode
switch. The CPU 948 Programming Guide will indicate when a manual
restart is permissible.
Step Action Result
1 Set the mode switch from
STOP to RUN
Red STOP LED goes off
RUN LED lights up
Red BASP LED goes off
For maintenance purposes or in the event of a fault, this startup without user
program in single-processor operation can serve to establish whether the CPU
is operating without errors.
Restart
CPUs, Memor
y
Cards, Memor
y
Submodules, Interface Submodules

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