Mitsubishi Electric FX5 User Manual page 133

Setting method
1.
Set the IP address to be allowed or denied in "IP Filter Settings" of "Security" under "Application Settings".(Page 132
IP filter settings)
2.
Write the module parameters to the CPU module.
3.
The IP filter function is enabled when the CPU module power is turned off and on or reset.
Even if the connection is established as set with the CPU module's "External Device Configuration" under
"Basic Settings" or the program, access from the external device is either allowed or denied following "IP Filter
Settings" of "Security" under "Application Settings".
Therefore, if the IP address set in the CPU module's "External Device Configuration" under "Basic Settings" is
set to be denied with "IP Filter Settings" of "Security" under "Application Settings", the IP filter function is
enabled and communication with the external device is denied.
Precautions
• If there is a proxy server in the LAN line, deny the IP address for the proxy server. If the IP address is allowed, it will not be
possible to prevent access from personal computers that access the proxy server.
• When the CPU module is connected to the personal computer by Ethernet, if IP address allowed in this function is
forgotten, access to the CPU module cannot be executed.
11 SECURITY FUNCTION
11.1 IP Filter Function
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