Siemens SIMATIC S7-1500 Manual page 20

Product overview
2.4 Functions
Procedure using the display
Make sure that the CPU is in STOP mode (RUN/STOP LED lights up yellow).
If a SIMATIC memory card is plugged in, make sure to remove this.
You can reach the "Factory settings" menu command by successively selecting
the following menu commands and confirming each step with "OK".
● Settings → Reset → Factory settings
Result: The CPU executes the "Reset to factory settings"; the RUN/STOP LED flashes
yellow. The yellow state of the RUN/STOP LED indicates that the CPU is reset to factory
settings and in STOP mode. The "Reset to factory settings" event is entered in the
diagnostics buffer.
Procedure using STEP 7
Make sure 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 "Retain IP address" option button to retain 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 factory settings.
Retentive characteristics of the memory objects
The properties of the CPU are set to the following values:
Table 2- 3
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)
Operating hours counter
Time
Reference
For more information about "Reset to factory settings", refer to the Structure and use
of CPU memory (http://support.automation.siemens.com/WW/view/en/59193101)
Function Manual in the Memory areas and retentivity chapter, as well as to the STEP 7
Online Help.
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or the "Reset IP address" option button to delete the IP address.
Properties of the CPU objects in the delivery state
Contents
Initialized
Initialized
Initialized
Initialized
Initialized
Initialized
Initialized
CPU 1511-1 PN (6ES7511-1AK00-0AB0)
Manual, 01/2013, A5E31264526-AA