Siemens SIMATIC S7-1500 System Manual page 195

Procedure using STEP 7
To reset a CPU to factory settings via STEP 7, follow these steps:
Make sure that there is an online connection to the CPU.
1. Open the Online and Diagnostics view of the CPU.
2. In the "Functions" folder, select the "Reset to factory settings" group.
3. If you want to keep the IP address, select the "Keep IP address" option button. If you
want to delete the IP address, select the "Delete IP address" option button.
4. Click the "Reset" button.
5. Click "OK" in response to the confirmation prompts.
Result: The CPU executes a "Reset to factory settings", during which time the RUN/STOP
LED flashes yellow. When the RUN/STOP LED lights up yellow, then the CPU has been
reset to factory settings, and is in the STOP mode. The "Reset to factory settings" event is
entered into the diagnostics buffer.
Result after resetting to factory settings
The following table provides an overview of the contents of the memory objects after the
reset to factory settings.
Table 13- 2 Result after resetting to factory settings
Memory object
Actual values of the data blocks, instance data blocks
Bit memories, timers and counters
Certain retentive tags from technology objects
(for example, adjustment values of absolute encoders)
Diagnostics buffer entries (retentive area)
Diagnostics buffer entries (non-retentive area)
IP address
Counter readings of the runtime meters
Time of day
If a SIMATIC memory card was inserted prior to the reset to factory settings, the CPU
downloads the configuration contained on the SIMATIC memory card (hardware and
software). A configured IP address is then valid again.
Automation system
System Manual, 12/2014, A5E03461182-AC
Contents
Initialized
Initialized
Initialized
Initialized
Initialized
Depends on the procedure:
Using mode switch: is deleted
•
Using display: is deleted
•
Using STEP 7: Depending on the setting of the "Keep
•
IP address"/"Delete IP address" option buttons
Initialized
Initialized
Maintenance
13.5 Reset to factory settings
195