Siemens Simatic S7-400 - Page 51

Installing the S7-400
2-31
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
Inserting the Keyswitch
You can insert the key in the CPU in the STOP position of the switch. You can
remove the key in the STOP or RUN settings.
Figure 2-6 Inserting the Key in the CPU
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