beautypg.com

Siemens S5-135U/155U User Manual

Page 166

background image

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, Memory Cards, Memory Submodules, Interface Submodules