Peter has definitely identified one of the problems for sure.
To elaborate.
- Volumen receives an update
- Execute the two command lines
- I’m surprised you don’t get an error on the logInfo since it is incorrect syntax.
- You send a command to Volumen
- Volumen receives and update, return to step 2.
And so around and around you go never stopping.
That’s your first problem. The second problem is I believe the Slider can send more than one command based on one movement of the slider (I could be wrong on that point, I don’t use Sliders). This will cause the Rule to execute multiple times.
You need to use a Design Pattern: Proxy Item that gets displayed on your sitemap. This triggers a Rule that sends a command to Volumen. Then you need to send the 0 command back to the Proxy Item, which will break the infinite loop.