Web Server Function - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

1.12

Web Server Function

The Web server function can read/write device data from/to the CPU module by using a Web browser. The device data can be
read/written from/to the CPU module by using a general-purpose Web browser of an Ethernet-connected personal computer
and also by using a general-purpose Web browser of a tablet or smartphone via Ethernet. An original Web page can be
created by users and displayed as well.
For the specifications, parameter settings, procedures before operation, system configuration, functions, and troubleshooting
of the Web server function, refer to the following.
 MELSEC iQ-R/MELSEC iQ-F Web Server Function Guide Book
This manual describes the JavaScript objects and CGI objects that can be used in the user Web page.
Incorporate measures other than this function if the programmable controller system's safety must be
maintained against illegal access from an external device. Mitsubishi shall not be held liable for any system
problems that may occur from illegal access. The user authentication of the Web server function is one
method of preventing illegal access (such as program or data destruction) from an external device. It does not
completely prevent illegal access.
Examples of measures for illegal access are given 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 (Contact the
network provider or equipment dealer for details on the external devices for which access rights can be
controlled.)
Ethernet
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1.12 Web Server Function
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