I setup an association between two dimmers in a 3 way configuration. I wanted both of them to constantly be in sync no matter which you controlled.
Here is what I had to do.
On each device I had to set the association behaviour (parameter 12) to local. The reason being is I found it created a loop of I left it at all. Watching the logs the devices just kept sending the changes back and forth to each other. Setting it to local only it would only send the change when controlled at the switch. The one downside is they don’t stay in sync if I operate them remotely. I’m still playing with this.
Then on each dimmer I added the other dimmer to groups 2 and 3.
Everything seems to work fast and better than using the hub. If I turn on or off either switch the other does the same. If I dim either switch the other does the same. And only one of the switches is actually controlling the light.
I’m trying to figure out how I can keep this functionality working when sending commands remotely and avoiding the loop mentioned above. It must be one of the association behaviour options.