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4 BASIC FUNCTIONS
4.13 Security Function
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4.13
Security Function
This function prevents assets stored in a personal computer or a C Controller module in the MELSEC iQ-R series system from
being stolen, falsified, operated incorrectly, and executed improperly due to unauthorized access from a third party.
Apply an appropriate security function in accordance with the situation.
The security function is one of the methods for preventing unauthorized access (such as program or data
corruption) from an external device. However, this function does not prevent unauthorized access completely.
Incorporate measures other than this function if the C Controller system's safety must be maintained against
unauthorized access from an external device. Mitsubishi Electric Corporation cannot be held responsible for
any system problems that may occur from unauthorized access.
Examples of measures for unauthorized 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.)
Individual identification information
The individual identification information of a C Controller module can be read with the C Controller module dedicated function
(CCPU_GetIDInfo). By implementing an activation function with a user program, a user program, which does not run in C
Controller modules with other individual identification information, can be created.
For C Controller module dedicated functions, refer to the following manual.
MELSEC iQ-R C Controller Module Programming Manual
GOT
Personal computer (Outside)
Personal computer
Internet/Intranet
[Protection for user assets in C Controller module]
Prevents property loss, falsification, incorrect
operation, and improper execution caused by an
unauthorized access.
MELSEC iQ-R series system
User assets
Содержание MELSEC iQ-R C R12CCPU-V
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