Commissioning
11.7 Backing up and restoring the CPU configuration
Automation system
System Manual, 12/2017, A5E03461182-AE
243
Procedure using the mode selector keys (standard, F-CPUs / compact CPUs from article number
6ES751x-xxx02-0AB0/6ES751x-1CK01-0AB0)
Note
Memory reset
↔ Reset to factory settings
The procedure described below also corresponds to the procedure for resetting to factory
settings:
•
Key operation with inserted SIMATIC memory card: CPU executes a memory reset
•
Key operation without inserted SIMATIC memory card: CPU executes reset to factory
settings
To perform a memory reset of the CPU using the mode selector keys, follow these steps:
1.
Press the STOP mode selector key.
Result: The STOP ACTIVE and RUN/STOP LED light up yellow.
2.
Keep the STOP mode selector key pressed until the RUN/STOP LED lights up for the
2nd time and remains continuously lit (this takes three seconds). After this, release the
key.
3.
Press the STOP mode selector key again within the next three seconds.
Result: The CPU executes memory reset.
For information on resetting the CPU to factory settings, refer to the section Reset CPU to
factory settings (Page 293).
Procedure using the display
To navigate to the desired "Memory reset" menu command, select the following sequence of
menu commands and confirm after each selection with "OK".
●
Settings
→ Reset → Memory reset
Result: The CPU executes memory reset.
Procedure using STEP 7
To perform a memory reset of the CPU via STEP 7, follow these steps:
1.
Open the "Online Tools" task card of the CPU.
2.
Click the "MRES" button in the "CPU control panel" pane.
3.
Click "OK" in response to the confirmation prompt.
Result: The CPU is set to STOP mode and performs memory reset.
Summary of Contents for Simatic S7-1500/ET 200MP
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