Siemens SIMATIC Manual page 16

6. Test Run
Step
1 Navigate via SIMATIC 300 Station and your CPU to
the S7 program.
In SIMATIC Manager, click on Blocks in the right-hand
part of the window.
2 From the Target System menu, select Download to
transfer the program and hardware configuration to the
CPU.
Click on Yes in every dialog box that appears.
3 Switch the CPU mode selector to RUN.
4 Actuate the two switches alternately.
5 Actuate the two switches simultaneously.
Diagnostics / Troubleshooting
Incorrect operation, wiring or hardware configuration can result in faults. The CPU
indicates these faults after a memory reset with the group error LED SF.
The S7-300 Installation Manual describes how to diagnose these errors and
messages.
Manuals for further details
For further information on Getting Started, we recommend that you read Getting
Started, First Steps and Exercises with STEP 7 V5.1.
14
Tasks
S7-300 Automation System CPU 31x: Commissioning
Result:
Blocks is highlighted.
The program and configuration are
downloaded from the programming
device to the CPU. The program
stored on the micro memory card (in
the download memory) is now
protected, even in the event of a
power failure or memory reset.
The STOP LED goes out. The RUN
LED starts flashing and then stays
on.
The LEDs of both inputs light up
alternately.
The LEDs of both inputs light up
together.
The LED of the first output lights up.
This would switch on any connected
actuator or indicator.
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