Maintenance
14.6 Reset to factory settings
Automation system
322 System Manual, 01/2023, A5E03461182-AK
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.
"Delete IP address" deletes all IP addresses, regardless of how you established the
online
If a SIMATIC Memory Card is inserted, selecting the "Delete IP address" option has the
following effect:
The IP addresses are deleted and the CPU is reset to factory settings.
The existing configuration (including IP address) on the SIMATIC Memory Card is then
loaded into the CPU. If no configuration is stored (e.g. after the SIMATIC Memory Card
has been erased or formatted), no new IP address is assigned.
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 in yellow, the CPU has been reset to factory
settings and is in the STOP operating state. The "Reset to factory settings" event is entered
into the diagnostics buffer.
Procedure using the SIMATIC Automation Tool
The procedure is described in the SIMATIC Automation Tool
(https://support.industry.siemens.com/cs/ww/en/view/98161300) manual (included in the
SIMATIC Automation Tool).
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