Samples: Website call

Requirements

A client (browser) requires a Java VM to display the web-based visualization TwinCAT PLC HMI Web (for Java VM versions see our information below).

For PC-based systems this is available free of charge from several providers, e.g. https://www.oracle.com/java/technologies/downloads/
For CE-based systems no free Java-VM is available

Start

The client calls up the website with this URL (irrespective of the name under which the VISU page was created in TwinCAT PLC Control.)

http://<ip-or-hostname-of-device>/TcWebVisu/Index.htm

http://<ip-or-hostname-of-device>/TcWebVisu/

Examples:

http://192.16.18.213/TcWebVisu/Index.htm

http://192.16.18.213/TcWebVisu/

http://CX_012345/TcWebVisu/Index.htm

http://CX_012345/TcWebVisu/

If you want to make a project change while the browser is showing the old project you would possibly have to empty the cache of your browser to display the new pages. For Internet Explorer 8 it would be: Shift-button + side-refresh-button with the mouse. A new browser window or a normal refresh does not work here.

	In Windows XP-based systems, the IP address and the NetID of the host computer must be identical for successful communication. Example: If the IP address is 192.16.18.213, the NetID must be 192.16.18.213.1.1.

	Not operational: http://localhost/TcWebVisu/

	Since Java-VM version 1.6.0_14 you must carry out the following settings: In your Control Panal (Windows XP / XPe) you can find the entry "Java". If you select this entry, the "Java Control Panal" window opens. Now please select the button "Network Settings...". Here you must set the option "Direct connection".

	Due to Java-related restrictions in the other browsers, Internet Explorer (currently version 11) is the only browser that supports the TwinCAT 2 PLC HMI Web.