Wago webvisu http post

CODESYS
1

Hello,

I have a Wago 750-891 controller which is still programmed with Codesys V2.3. Because modern browsers don’t support the java-aplets, used for webvisu in Codesys V2.3, anymore, I’m writing the HTML and Javascript myself. Using a video on Youtube (https://youtu.be/OxGdd9X35cM) I was able to read values from the PLC and displaying them in my browser. But now I am trying to modify variables in the PLC from the browser (write). When using the method showed in the video it doesn’t work and the browser returns http status code 302 and I just get redirected to my main page. This is the code shown in the video:

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image597×122 3.48 KB

What could be the problem? Is the action “/WRITEPI” supported by the PLC? Are there alternatives to achieve this?

Thanks in advance for your help.

2

Hello,
On my free time I made this java program which call your webvisu and display it in it’s own screen:

It also work with the open source java system.

3 Likes
3

The iOS and Android Webvisu app also supports Codesys 2.3 & 3.5 web visualizations.

There is a Windows version of WebVisuStarter, but its been years since I have seen it.

4

Yes germany have made one but I don’t like it because it have the java runtime integrated and it can’t be updated. this could be a security problem in the future.