As I learn more about Vera(Plus) and Z-Wave networks I find my number of question increase. In my attempt to associate two switches I had many questions regarding how association groups work. This summarized what my research on association groups found.
The below information is preliminary and likely to have some misinformation. I’m hoping folks with more experience will critique it and folks with questions after reading the below will ask them so the wording can be changes to make it clearer.
I thank everyone in advance for their input, good / bad or questions.
Associations / Groups:
Associations are a way to allow communication between two z-wave products without a z-wave controller. An example can be a motion sensor that directly turns on a light switch.
A device has one or more association groups. Multiple devices can be added to one group. These groups usually have different functions. It?s possible that association group 1 sends a ?Basic? command to multiple products and association group 2 sends a temperature report to the main controller.
[ul][li]There is no Group 0, never was.[/li]
[li]Group 1 is a special group ### more info needed ### which by default all devices ?listen to? or monitor. Sometimes called Lifeline.[/li]
[li]Every device is by associated with Group 1 by default during Vera include.[/li]
[li]The number of Groups available for a device is determined by that device (not by Vera). In the above example, the motions sensor may have three groups.[/li][/ul]
o Group 1 by default is used to send all the data the motion sensor generates (say motion and brightness) ### need to verify this###
o Group 2 might be motion only status from the sensor (determined by the sensor design)
o Group 3 might be brightness only from the sensor (again determined by the sensor design)
Another example might be a light switch: o A single tap on the lightSwitch ID:5 would send a Group 1 signal to lightSwitch ID:#6. o A double tap on the same lightSwitch ID:5 would send a Group 2 signal to lightSwitchID: 7.
[ul][li]Groups are not global. I.e. it is possible for motionSensor ID:5 to be associated with lightSwitch ID:7 using Group2. At the same time is it possible for motionSensor ID:8 to be associated with lightSwitch ID:9 also using Group2.[/li]
[li]In this case motionSensor ID:5 will not affect the operation of lightSwitch ID:9. [/li]
[li]In theory there can be 255 groups (#1 to #255).[/li]
[li]Group 255 is a special group for Hail all. ### need more information here ###[/li][/ul]
I have yet to understand endpoints and how they would / should be entered into the field next to the target Set checkbox in UI7 association screen.
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