Security Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.5

Security Function

The security function prevents assets stored in a high speed data logger module from being stolen, falsified, operated
incorrectly, and executed improperly due to unauthorized access from a third party.
Precautions
The security function is one of the methods for preventing illegal access (such as program or data corruption) from an external
device. However, this function does not prevent illegal access completely. Incorporate measures other than this function if the
programmable controller system's safety must be maintained against illegal access from an external device. Mitsubishi
Electric Corporation cannot be held responsible for any system problems that may occur from illegal access.
Examples of measures for illegal access are shown below.
• 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. (For details on the external
devices for which access rights can be controlled, consult the network provider or equipment dealer.)
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1.5 Security Function