As usual, I first tried to solve the problems with stopping the reporting of power values (watts), and only then I looked for a solution on the forum. This required deleting and re-adding the meter to the HC3L, so I also wrote a simple scene to change the names of endpoints (in Polish), so if you want to use it, you have to edit the names themselves. There are a lot of things to fix, but maybe someone will find it useful   helpful data: Please login or register to see this link.