Siemens SIMATIC S7-1500 Manual page 22

Product overview
2.6 Functions
Procedure using the display
Make sure that the CPU is in STOP mode (RUN/STOP LED lit yellow).
You can reach the "Factory settings" menu command by selecting the following menu
commands one after the other and confirming each selection with "OK".
● Settings → Reset → Factory settings
Result: The CPU executes a reset to factory settings, during which time the RUN/STOP LED
flashes yellow. The RUN/STOP LED lit yellow indicates that the CPU has been reset to the
factory settings and is in STOP mode. The "Reset to factory setting" event is entered in the
diagnostics buffer.
Procedure using STEP 7
Make sure that there is an online connection to the CPU that is to be reset to the factory
settings.
1. Open the Online and Diagnostics view of the CPU.
2. In the "Functions" folder, select the "Reset to factory settings" group.
3. Select the option button "Retain IP address" if you want to keep the IP address. Select
the option button "Delete IP address" if you want to delete the IP address.
4. Click "Reset".
5. Click "OK" to confirm the security prompt.
Result: The CPU is set to STOP mode and is reset to the factory settings.
Behavior of the memory objects with a reset to factory settings
The properties of the CPU are set to the following values:
Table 2- 3 Properties of the CPU objects in the 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, calibration values of absolute encoders)
Diagnostics buffer entries (retentive area)
Diagnostics buffer entries (non-retentive area)
IP address
Counter readings of the operating hours counters
Time
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Contents
Initialized
Initialized
Initialized
Initialized
Initialized
Depends on the procedure:
Using mode selector: is deleted
•
Using display: is deleted
•
Using STEP 7: Depending on the setting of the "Retain IP
•
address"/"Delete IP address" option buttons
Initialized
Initialized
CPU 1515-2 PN (6ES7515-2AM00-0AB0)
Manual, 12/2014, A5E32332431-AB