Resetting Cpu/Interface Module (Profinet) To Factory Settings; Resetting The Cpu To Factory Settings - Siemens SIMATIC ET 200SP System Manual

12.6

Resetting CPU/interface module (PROFINET) to factory settings

12.6.1

Resetting the CPU to factory settings

Function
The CPU can be reset to its delivery state using "Reset to factory settings". The function
deletes all information saved internally on the CPU.
Recommendation:
If you want to remove a PROFINET CPU and use it elsewhere with a different program, or
put it into storage, we recommend that you reset the CPU to its factory settings. When
restoring factory settings, remember that the IP address parameters are also deleted.
Options for resetting a CPU to factory settings
The following options are available for resetting the CPU to its factory settings:
● Using the mode selector
● Using STEP 7
Procedure using the mode selector
Make sure that there is no SIMATIC memory card in the CPU and that the CPU is in STOP
mode (the RUN/STOP LED is lit yellow).
Perform a reset to factory settings when there is no SIMATIC memory card inserted as
follows:
1. Set the mode selector to the STOP position.
Result: The RUN/STOP LED lights up yellow.
2. Set the mode selector to the MRES position. Hold the mode selector in this position until
the RUN/STOP LED lights up for the 2nd time and remains continuously lit (after three
seconds). After this, release the switch.
3. Within the next three seconds, switch the mode selector back to the MRES position, and
then back to STOP again.
Result: The CPU executes the "Reset to factory settings", during which time the RUN/STOP
LED flashes yellow. When the RUN/STOP LED lights up yellow, the CPU has been reset to
factory settings and is in the STOP mode. The "Reset to factory settings" event is entered in
the diagnostics buffer.
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF
12.6 Resetting CPU/interface module (PROFINET) to factory settings
Maintenance
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