Maintenance
14.6 Reset to factory settings
Automation system
294
System Manual, 12/2017, A5E03461182-AE
Procedure using the mode selector
Make sure that the CPU is in STOP mode (the CPU display shows STOP mode or
RUN/STOP LED lights up yellow).
Note
Reset to factory settings
↔ Memory reset
The procedure described below also corresponds to the procedure for a memory reset:
•
Selector operation with inserted SIMATIC memory card: CPU executes a memory reset
•
Selector operation without inserted SIMATIC memory card: CPU executes reset to factory
settings
Perform a reset to factory settings 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 (this takes
three seconds). After this, release the selector.
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 a "Reset to factory settings", during which time the RUN/STOP
LED flashes yellow. When the RUN/STOP LED lights up yellow, then the CPU has been
reset to factory settings, and is in the STOP mode. The "Reset to factory settings" event is
entered into the diagnostics buffer.
Note
The IP address of the CPU is also deleted when the CPU is reset to the factory settings
through the mode selector.
Summary of Contents for Simatic S7-1500/ET 200MP
Page 1: ......
