Use Edge app to write Tags in WinCC

I am trying to write my own Edge app for a Unified Comfort Panel.For Creating the app I follow the example of "Creating and managing Edge apps using the example of the "SendMail" app" (https://support.industry.siemens.com/cs/ww/en/view/109778780)

So I created a TIA Project with the HMI tags "tag3", "tag4", "tag5" (all as WString) which are displayed in IO fields.

With my IDE I wrote some code in JavaScript with the intention to write and process values into/from the IO fields.

After connecting to runtime with OpenPip API, I tried to display a value I defined in my code.

let tag3 = 19;

The full code is attached as .txt

I only had a short look at your code, but maybe you could add the a line like this:

console.log(„connection established"); 

after the line:

ConnectRuntime.Connect((runtimeClass) => {

and then run the code locally and you TIA project on a PC RT. This way you can check as a first step if your connection to the RT is established correctly.

You should also see the values of your tags in the console. If everything works when testing the code locally, the issue is probably not the code, but the configuration in the Industrial Edge Publisher.

Thank you for your reply.

The following video from "DerHecht4.0" helped me a lot: https://www.youtube.com/watch?v=517Rekin9d8

The code shown here is diffrent from the SendMailExample, but it worked for me