9.4
Operating modes
9.4.1
Basic principles of the operating modes
Introduction
Operating modes describe the states of the CPU. The following operating states are possible
via the mode selector:
● STARTUP
● RUN
● STOP
In these operating modes, the CPU can communicate, e.g. via the PN/IE interface.
The status LEDs on the front side of the CPU indicate the current operating mode.
Reference
You can find additional information in the STEP 7 online help.
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB
Commissioning
9.4 Operating modes
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