General > Frequently Asked Questions

Controlling PLC via Web Browser

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support:
The second generation of Web control application is now available free for any TRi PLC user to download and install into their PLC.  Simply transfer via FTP client (e.g. Filezilla) the web page 0-xxx-xx.htm into your PLC's file space and you can immediately use the web browser on your PC, tablet or smart phone as HMI to control your equipment.

This new version makes use of newer Jquery UI and accept up to: 16 I/O buttons linked to Relay #128 to #144; 16 floating point FP[] variables; 16 DM[] variables, and 8 sliders that can be attached to display and/or control any of the FP[1] to FP[16] or DM[1] to DM[16] variables. Any of these control elements can be selectively displayed and their position, size and color are all user customizable using a simple text editor, with no programming required at all.

Click on the following link to download this new web application.

http://www.tri-plc.com/download/webapp/webapp02a.zip

[updated 2015-3-4 - sliders now will not disable continuous refresh]

The zip file contains 4 sample designs to demonstrate the many possible variations of UI that you can configure to suit your application. There is also a TRiLOGI file that you can transfer into the PLC for a quick test of web control as well as animation of the slider bar. The next few post shows the screen display for each file.

The user guide describing how you can modify the control webpage can be downloaded from:

http://www.triplc.com/documents/WebApp_UserGuide.pdf

support:
This design shows a panel with brushed anodized aluminium finish. There are 14 buttons, 8 FP[], 4 DM[] and 3 sliders:


The user guide for modification of the control webpage can be downloaded from:

http://www.triplc.com/documents/WebApp_UserGuide.pdf

support:
This design is similar to the last one except the LCD panel is turned OFF.

support:
This is the simple but clean control panel that display 16 I/O buttons, 4 FP[], 4 DM[] and 4 sliders.

support:
If you want something more fanciful such as a graphical picture of the process you are controlling, it can also be done very easily by modifying from the same 0-xxx-xx.htm file. The following shows an example of a colorful HMI.

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