ok now it works I've bought the part of Example 1 and in a junction box, which is located approximately the center of the cable connected. Now the values are displayed correctly in the HC2. Thank you again for the hints that ultimately led to the solution.
However, I still have 2 questions that now address further areas:
1. To reduce the traffic, I have set the polling ("Devices polled periodically") to 120 seconds and the parameter 43 ("Reporting 0-10V ...") to 0.5V. So I get an update immediately for stronger wind changes and otherwise only every 2 minutes. That should be so correct, right?
2. I would like to use the anemometer for the sun blind control, but I want to avoid that a short gust of wind makes sure that the sun blinds go up. So I would like to implement the following things and wonder if and how it could go.
a. MAX wind speed per day (last day or last 24 hours is enough)
b. MIN wind speed per day (or last day or last 24 hours is enough)
c. Durschn. Wind speed last 24 hours
d. Durchn. Wind speed last 5 minutes. => Will be relevant later for external blind control.
e. Nice to have would be graphic representation like in a chart.
Has anyone implemented something like that or simlar to that, so I would not have to start with "0" programming. Would be very grateful for your help.