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Service and maintenance
7.2 Memory reset - ACL
● Reset to factory settings
Behavior after a memory reset
The CPU in the S7 station does not recognize that the CP memory was reset. The CP
therefore changes to the "Stopped (STOP) with error" state (see LEDs (Page 29)).
The configuration data must then be reloaded.
If the configuration data is stored on the CPU, you can start a download by cycling power.
7.2
Memory reset - ACL
Note
After the memory reset, the previously configured IP-ACL (IP Access Control List) remains
active.
7.3
Loading new firmware
Options for a firmware update
The following alternative methods can be used to download new firmware to a SIMATIC NET
CP:
● Using the firmware loader supplied with STEP 7
54
– In STEP 7 V5.5 with the menu command "PLC" > "Edit Ethernet Node..." > Select CP
> "OK" > "Reset to Factory Defaults"
– In STEP 7 special diagnostics with the "Operating Mode" > "Reset to Factory Settings"
menu command
– In STEP 7 Professional V11 with "Online > Online & Diagnostics > Functions > Reset
to Factory Settings"
Requirement for downloading:
– To download firmware, you require an Industrial Ethernet CP module in the PG/PC
(for example, CP 1613) or a normal Ethernet module with the "Softnet" software
package.
– The S7ONLINE interface must be set to the "ISO - Industrial Ethernet" protocol. It is
not possible to download using TCP/IP (and therefore not to other networks).
Always run the download using the active MAC address of the CP!
Manual, 10/2012, C79000−G8976−C201-07
CP 343-1
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