Utilizing Web Server - Mitsubishi Electric MELSEC-Q Series User Manual

(b) Device memory read/write, remote RUN/STOP and other operations can be
performed for the Q/LCPU of an Ethernet module mounted station by specifying the
URL of the sample screen using the Web browser.
*1 The execution result is displayed by simply entering the access device, the number of devices, etc. in the items to be
displayed in the Web browser.
Ex. To read four points of data registers D0 = 1234
1.4

Utilizing Web Server

Access to the programmable controller using the Web function becomes possible by combining an Ethernet module
and a Web server computer.
(1) A system can easily be configured by utilizing a Web server.
(a) Complicated screens can be created.
The user can create multiple HTML files and HTML files of large sizes without being limited by the size of the
Ethernet module memory by storing these HTML files in a Web server.
*1 The HTML files for Web browser can be created or changed easily if the user has knowledge of creating a web page.
(b) Reducing the load on the Ethernet module
Since access programs for the programmable controller and control programs for Web browsers are executed
in the Web server, the load on the Ethernet module can be minimized when accessing the programmable
controller.
(c) Separating an Ethernet line
By separating the line connecting between the Ethernet module and the Web server, and the line between the
Web server and the Web browser, the screen data for the Web browser will not be sent to the line connecting
between the Ethernet module and the Web server.
Therefore, it is possible to reduce effect on the transmission/reception of data for system control for
communication between the Ethernet module and the external device.
(Input screen)
*1
, D1 = 5678 , D2 = 9ABC
H H H
(Execution result screen)
*1
CHAPTER 1 OVERVIEW
, and D3 = 1234 .
H
13
1