Remote Password - Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual

Remote password

This function permits or prohibits access from the external device to the FX5 CPU module via the FX5-CCLGN-MS. This
prevents unauthorized access to the FX5 CPU module from a remote location.
The remote password is one method of preventing unauthorized access (such as program or data destruction)
from an external device. It does not completely prevent unauthorized access. Take appropriate measures
other than this function if the safety of the programmable controller system must be maintained against
unauthorized access from an external device. Mitsubishi shall not be held liable for any system problems that
may occur from unauthorized access.
Examples of measures for unauthorized access are as follows.
• Install a firewall.
• Install a personal computer as a relay station, and control the relay of send/receive data with an application
program.
• Install an external device for which the access rights can be controlled as a relay station. (Contact the
network service provider or equipment dealer for details on the external devices for which access rights can
be controlled.)
Number of settable modules
Up to three modules can be set for remote passwords.
4
4 FUNCTIONS
55
4.5 Security