Remote Password Check Function - Mitsubishi Electric MELSEC-Q Series User Manual

(2) System expansion can easily be achieved because the Web server and the
Ethernet module are separated.
For example, the following function can be added:
If it is necessary to maintain the security of the programmable controller system against any unauthorized access
(to damage programs or data, etc.) from external devices, the user can take a measure by adding a firewall
function to the Web server.
(3) The communication information between the Ethernet module and the Web
server, and between the Web server and the Web browser can be recorded and
used for maintenance using the functions of the Web server.
1.5

Remote Password Check Function

(1) The remote password check function of the Ethernet module is provided to
prevent any unauthorized access to the Q/LCPU by the user at a remote
location.
For details on the remote password check function, refer to the user's manual (Basic).
(2) If the HTTP port is set as the target connection for remote password check,
access to the Q/LCPU will become possible by performing unlock processing
of the remote password via the dialog box displayed in the Web browser.
The remote password lock processing is performed when the Web browser ends.
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