First Power-On Of The Cpu - Siemens SIMATIC S7-1500 System Manual

10.3.2

First power-on of the CPU

Requirements
● An S7-1500 automation system is installed and wired.
● The SIMATIC memory card is inserted in the CPU.
Procedure
To commission a CPU, follow these steps:
1. Switch on the system power supply and load current supply.
Result:
● The CPU executes a flash test:
– All LEDs flash at 2 Hz
– RUN/STOP LED flashes alternately yellow/green
– ERROR LED flashes red
– MAINT LED flashes yellow
● The CPU runs the system initialization and evaluates the SIMATIC memory card:
– RUN/STOP LED flashes yellow at 2 Hz
● After the system initialization has been completed, the CPU goes to STOP mode:
– The RUN/STOP LED lights up yellow
Automation system
System Manual, 12/2014, A5E03461182-AC
10.3 Procedure for commissioning the S7-1500 automation system
Commissioning
149