Online and diagnostic tools
14.5 Resetting to factory settings
S7-1200 Programmable controller
790 System Manual, 03/2014, A5E02486680-AG
To reset a CPU to its factory settings, follow these steps:
1. Open the Online and Diagnostics view of the CPU.
2. Select "Reset to factory settings" from the "Functions" folder.
3. Select the "Keep IP address" check box if you want to retain the IP address or the "Reset
IP address" check box if you want to delete the IP address.
4. Click the "Reset" button.
5. Acknowledge the confirmation prompt with "OK".
The module is switched to STOP mode if necessary, and it is reset to the factory settings:
● The work memory and internal load memory and all operand areas are cleared.
● All parameters are reset to their defaults.
● The diagnostics buffer is cleared.
● The time of day is reset.
● The IP address is retained or deleted based on the setting you made. (The MAC address
is fixed and is never changed.)
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