Maintenance
12.7 Resetting CPU/interface module (PROFINET) to factory settings
Distributed I/O system
252 System Manual, 12/2016, A5E03576849-AG
Result after resetting to factory settings
The following table provides an overview of the contents of the memory objects after the
reset to factory settings.
Table 12- 3 Result after resetting to factory settings
Actual values of the data blocks, instance data blocks
Bit memory, timers and counters Initialized
Certain retentive tags from technology objects
(e.g. adjustment values of absolute encoders)
Initialized
Diagnostics buffer entries (retentive area) Initialized
Diagnostics buffer entries (non-retentive area)
Counter readings of the runtime meters
If a SIMATIC memory card was inserted prior to the factory reset, the CPU downloads the
configuration contained on the SIMATIC memory card (hardware and software). A
configured IP address then becomes valid again.
Additional information on the topic "Resetting to factory settings" can be found in the
Structure and use of the CPU memory
(http://support.automation.siemens.com/WW/view/en/59193101) function manual, section on
memory areas and retentivity, and in the STEP 7 online help.
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