I’ve been checking with some different Z-Wave installations and I encountered different problems/questions but I keep them in the same post just in case they are related somehow.
Note: I’m using 2.5.7 version (no longer the latest one ).
I leaved the default 2AM healing configured in all installations and I observed that it triggers a healing process exactly at 2:44 AM. This leads to a lot of Z-Wave traffic and collisions (installations are next to each other). Is it any reason of the “delay” between 2AM setting and the real 2:44 AM execution?
About the healing, I saw that there are other recent post saying that the healing is not recommended anymore? Should healing be disabled by default?
Also regarding the healing, the installations are pretty static and without moving/adding any device. It is safe to disable it? Is there any way to trigger a weekly or monthly heal?
Is there any problem if openhab performs a reset in the middle of a healing? I’ve configured a nightly reboot just to ensure everything is cleaned periodically but I’m concerned that if the heal process takes a lot of time, it might interfere.
Once, one installation stopped responding, but all devices looked ONLINE. Checking the .xml files, all off them look with homeid as zeroes (network_00000000__node_1.xml). I restarted the embedded and they worked again.
Checking the Zniffer for problems I’ve found some that node 1 is communicating no node 1. Is it normal?
I had an issue with a Danalock v3 device where it stopped working. The reason seems that the “lock” command class is not found, but I’m not sure why it was lost (it were working properly):
2020-08-24 12:41:44.761 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 35: Command received zwave:device:3cdbad41:node35:lock_door --> OFF [OnOffType]
2020-08-24 12:41:44.763 [WARN ] [ng.zwave.internal.converter.ZWaveDoorLockConverter] - NODE 35: Command class COMMAND_CLASS_DOOR_LOCK not found
2020-08-24 12:41:44.764 [DEBUG] [rg.openhab.binding.zwave.handler.ZWaveThingHandler] - NODE 35: No messages returned from converter
I got a final error when configuring the autolock parameter with danalock. I’ve restarted and it worked properly again, but I couln’t figure what is the problem and it might help you somehow:
2020-08-21 14:06:55.359 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
2020-08-21 14:06:55.363 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
2020-08-21 14:06:55.366 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
2020-08-21 14:06:55.371 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
2020-08-21 14:06:55.380 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
2020-08-21 14:06:55.388 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
2020-08-21 14:06:55.392 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
2020-08-21 14:06:55.396 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
2020-08-21 14:06:55.400 [WARN ] [ding.zwave.handler.ZWaveThingHandler] - Value format error processing user code null
No. Healing serves a purpose: if you change the location of things, e.g. including devices in proximity to your controller and then move them to their correct destination, the neighbors will change. Healing will discover that and amend the network information accordingly. IF you have a static network with no changes for some time so all the network information is correct/known to the controller, you may disable healing. But keep in mind, that it might need to be enabled again for a period of time if you change locations of things or add new things.
As far as I know you can only change the start time per day, nothing more. Everything beyond that needs manual intervention.
Good question. Honestly, I don’t know. Personally I would time it so the two processes do not interfere.
Node 1 is your controller. Normally the controller should have some neighbors to talk to. It should have at least ONE neighbor to talk to, otherwise your network would not work at all.
The other questions I cannot answer, others here will add to that, I’m sure.
Yes! I know that with the HomeID, the installations should not be affect by the other. I just told this to make it clear that the healing at the same time of two nearby installation can create a huge amount of packets sent “at the same time”.
It is possible. Nevertheless, if no one in the zwave network would do anything with this packet, isn’t the controller spamming unnecessary messages out there? Isn’t it just wasting z-wave “bandwidth” without any reason?
Yes! But if the default configuration is always set at 2AM, doesn’t it is a bit dangerous? Do I need to know if my neighbour is using Openhab? Also, if it doesn’t start until 2:44… is there any reason? Is Z-Wave binding doing something internally between 2:00 and 2:44? Is this delay caused from some bad configuration?
Some questions are just to know the real “issue” behind that and not just trying workarounds without knowing what am I doing. I think it’s better to ask so maybe Chris finds out some underlying issue or some improvement, rather that just “turning it off and on”.
This is a zwave protocol design question.
Nevertheless, what makes you think no one does anything with it? At the very least, the controller can hear its own “echo” and know the radio is working. Seems like a smart thing to do when beginning a heal. I expect the zwave rules call for an acknowledgement (to itself) as well, further validating radio function.
I don’t know and I’m not interested enough to find out - but you clearly are, have a search into silabs documentation perhaps.
For example, if you discover that the controllers support healing on demand or schedule other than daily, then you can ask more meaningful questions about how to do that in openHAB environment.
Only if your devices are right next to each other. I have issues just reaching devices in my front yard with a repeater on the front porch. This network is intentionally designed to be low power ti avoid such issues.
Once all devices finish the healing, there’s a last process where Node 1 tries to communicate with itself (or something similar). Once the attached log is finished, I keep seeing in the Zniffer messages of node 1 asking to itself for a long period of time. Is this a wanted behaviour? I’m not sure if this really improves the network.
Like the previous questions, I’ve been playing with zwave devices and found some strange things to me. Some of them break Z-Wave net and devices stop responding, and some are just questions. I wanted to point them out here so I can get an extra knowledge of how it works and maybe help finding some bugs.
I will take a look at teh log, but this doesn’t sound like something that the binding is doing - this is probably just the controller.
Ok, that’s fine, but I don’t understand what you’re asking? What was the point about posting this log?
Did you have a question about it? I’m not sure if there’s something you wanted to know, or if it is just posted for some other reason? It just seems a very strange this to post so I’m a little confused, that’s all.