Resetting The Cpu To Factory Settings - Siemens Simatic ET200pro Operating Instruction

Maintenance

9.2 Resetting the CPU to factory settings

9.2 Resetting the CPU to factory settings
Function
"Reset to factory settings" restores the CPU to its delivery state. The function deletes all
information that was stored internally on the CPU.
Recommendation:
If you want to remove a CPU and use it elsewhere with a different program, or put it into
storage, restore the CPU to its delivery state. When resetting to factory settings, remember
that the IP address parameters are also deleted.
Options for resetting a CPU to factory settings
You can reset the CPU to its as-delivered condition by:
● using the mode switch
● using STEP 7
Required tool (only for procedure using the mode switch)
Cross-tip screwdriver, size 2
Procedure using the mode selector
Make sure that the CPU is in STOP mode (RUN/STOP LED lit 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. Switch off the supply voltages 1L+ and 2L+ of the CPU.
2. Using the cross-tip screwdriver, loosen the 4 screws on the front of the connection
module CM CPU 2PN M12, 7/8".
3. Remove the connection module from the CPU.
4. Remove the SIMATIC memory card from the card slot (see section Inserting/replacing
SIMATIC memory card (Page 73)).
5. Insert the connection module onto the CPU again and screw it into place.
6. Switch on the supply voltages 1L+ and 2L+ of the CPU again.
7. Unscrew the screw cap from the CPU.
102
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 09/2016, A5E35873416-AA