Resetting Cpus To Factory Settings - Siemens SIMATIC S7-1500 System Manual

Maintenance

13.5 Resetting CPUs to factory settings

Follow the sequence below:
1. Switch CPU 2 to the STOP operating state.
2. Run the update for the CPU 2 display.
3. Switch CPU 2 to the RUN operating state. Wait until the R/H system switches to the RUN-
Redundant system state.
4. Switch CPU 1 to the STOP operating state.
5. Run the update for the CPU 1 display.
6. Switch CPU 1 to the RUN operating state. Wait until the R/H system switches to the RUN-
Redundant system state.
Behavior after the firmware update
After the firmware update, check the firmware version of the updated module.
Reference
You can find more information on firmware updates in the STEP 7 online help.
13.5 Resetting CPUs to factory settings
Introduction
The CPU can be reset to its as-delivered condition using "Reset to factory settings". The
function deletes all information saved internally on the CPU.
Recommendation:
Switch the CPU to its as-delivered condition if:
• You remove a CPU and use it elsewhere with a different program.
• You store the CPU.
When resetting to factory settings, remember that the IP address parameters are also deleted.
Options for resetting a CPU to factory settings
You can reset the CPU to its as-delivered condition:
• Using the mode selector / mode selector keys
• Using the display
• Using STEP 7
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S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD