# Associations maken? **URL:** \ **Category:** Vragen & hulp\ **Tags:** z-wave\ **Created:** [September 15, 2018, 10:21pm UTC](https://community.homey.app/t/associations-maken/1737 "2018-09-15T22:21:42Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Smarthome](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/smarthome/32/646_2.png) [@Smarthome](https://community.homey.app/u/Smarthome)\ **Post date:** [September 16, 2018, 2:52am UTC](https://community.homey.app/t/associations-maken/1737/2 "2018-09-16T02:52:18Z")
@Pacogssl Associations are one of the big mysteries of Z-Wave! Personally, I am not a huge fan of Associations (in practise rather than theory) - mainly because it is easy to lose track of what is happing with your Z-Wave network and you lose a lot of “granular control” - my best advice if you would like to persevere with Associations is to keep a record somewhere written down! Actually assigning an Association in Homey is rather simple… 1. First, make a note of the “Node ID” for the device you would like to control (Device Settings \> Node Information)… ![associations-1](https://us1.discourse-cdn.com/flex025/uploads/athom/original/1X/8806cf2183d4dd02b8760d88adaf220090c2c838.jpeg) 1. Next, open the Settings for the sensor you would like to “Associate” with the device above (Device Settings \> Associations) and enter the “Node ID” from above… ![associations-2](https://us1.discourse-cdn.com/flex025/uploads/athom/original/1X/274e7cbbc8c5c3cc37592c65418dd4a83dd056f4.jpeg) WARNING: We do not want to remove “Node ID 1” at any stage - this is Homey! Also, Association “Groups” can change between devices. For the example above, I am using an Aeotec Door/Window Sensor 6 - this only has one Association Group - to which we can add up to 5 devices - don’t forget, Homey will take up one of these slots - each Node ID should be separated by a comma ( i.e. 1,72,56 ). Other devices will have multiple Association Groups, some of which can only have a single Node ID - and are used for various Association tasks - Hovering over the “i” next to each Association field will provide more details on the various Association Groups for each device in Homey. Here is a really well written overview of [Z-Wave Associations](https://www.vesternet.com/resources/technology-indepth/groups-scenes-associations/). Final comment… Z-Wave Associations are a difficult beast to master and somewhat complex… I caution to use them sparingly. There are a few instances where they can be very useful (e.g. a Z-Wave Smoke Detector “Associated” with emergency exit lighting - so even if your Z-Wave controller becomes inoperable, these two devices will still communicate) - but to be honest, I have never really found much use for them - again, if you do use Associations, keep track of them somewhere! I hope this helps 🙂 --- _[View the full topic](https://community.homey.app/t/associations-maken/1737)._