Eaton Cooper RF9640-N Master Dimmer and RF9642-Z Accessory Dimmer Switch Association

I’ve got a SmartThings hub v2 and I’m trying to create an association between my Eaton Z-Wave Plus devices to get a 3-way dimmer configuration working

  • RF9640-N Master Dimmer
  • RF9642-Z Accessory Dimmer Switch

Here is the manual for reference:

The association groups in play look like:

  • Group 1 (lifeline) – 5 node maximum
  • Group 2 (ON/OFF) – 5 node maximum
  • Group 3 (DIM Up/ DIM Down) – 5 node maximum

It looks like my SmartThings hub v2 won’t support Z-Wave associations for these two Z-Wave Plus devices, so I’ve started to dabble with the Z-Wave tweaker and I’ve gotten nowhere there either.

Has anyone else had any luck with this set up or something similar?

Many people use it, the Z wave Tweaker should work for you. Please ask any questions in that thread. That’s where people will be able to help you with it. :sunglasses:

Remember that in zwave you associate the trigger device (in this case, the auxiliary, which is the 9642), to the target (in this case, the Master, which is the 9640). So the device that you want to be tweaking is the 9642, not the 9640. The master will control the load. The auxiliary essentially becomes a remote that controls the master.

In direct association, the hub is going to give the 9642 permission to talk directly to the 9640 without having to go through the hub first. The 9640 won’t care where the command comes from, so you don’t need to tweak it.

Alright, I was 5min away from a solution. I used the tweaker + the old SmartThings app, and then I had to have the accessory switch scan association groups (I did it for the master as well – didn’t see the reply from JDRoberts in time).

Looks like it worked fine, but we’ll see what happens if I add other dimmers in other rooms that need to be paired separately :slight_smile:

1 Like

Shouldn’t make any difference. The hub doesn’t care what associations exist after the initial permission is given. And the associations will be stored in the auxiliary switch itself. So it doesn’t really have anything to do with other devices that are added to the network Shouldn’t make any difference. The hub doesn’t care what associations exist after the initial permission is given. And the associations will be stored in the auxiliary switch it self. So it doesn’t really have anything to do with other devices that are added to the network later.