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Thread: ZWave woes

  1. #1
    MalcolmSu
    Guest

    Default ZWave woes

    my admiration of ZWave is starting to wear off a bit now! Having completely switched from X10 appliance and lamp modules to the equivalent ZWave modules I now experiencing problems.

    Other than add more modules my set up has been almost static for some months but over the past couple of months with a bit more time on my hands I've notice quite a high number of failures in my HomeSeer logs.

    I've had numerous intermittent commands that are failed to be received by the ZWave modules, intermittent polling failures which cause HS not to know the current status and lastly adding a new device to my expanding inventory has been a nightmare!

    As you may know new devices are added via the remote and then transfered via a USB receiver to the PC and HS. That last part now seems to be extremely hit or miss. The send fails, it gets extra devices that don't exist - so frustrating. The only way I've found to recover is to power everything down and start again which for a HA server is just wrong!

    I've also had my first lamp module fail when a bulb blew - it became a bin job...

    I'm now no longer convinced that ZWave is going to bring HA to the 'ordinary man in the street'. :cry:

    M

    PS haven't seen these products mentioned in here before http://www.controlthink.com/ ?? Or did I miss that?

  2. #2

    Default Re: ZWave woes

    Interesting to hear a long-term opinion on Z-wave.

    Doesn't sound too encouraging though. How many units in your setup now?

    M.

  3. #3
    MalcolmSu
    Guest

    Default Re: ZWave woes

    Just 22 at the moment although I've just removed 3 as they were controlling the Xmas lights. That in itself is not an easy task! Removing them from HomeSeer is easy but the remote and the USB interface still knows about them which means they re-appear everytime you download again. I wish I'd left them alone but I tried to remove them as HS keeps polling them and they weren't there which was giving errors (I've since discovered you can turn polling off).

    I dread to think what will happen next year - the devices cannot just be plugged in again. They'll all need to be re-learned since ZWave needs to know where they are in the 'network' - i.e. their position relative to other ZWave devices.

    I've read of others who have had a failed unit resort to deleting everything and relearning which might be fine with one or two units but I'd hate to have to resort to setting up 22 devices again in ZWave and in HS.

    If you read the HS forums the two main problems seem to be polling and the USB interface - although no one seems to be definitive about this. One of the main reasons for switching to ZWave for me was the two way feedback from devices.

    By default HS sets each device to be polled every 300s. It would 'appear' that with large numbers of devices all being polled at 300s intervals this can cause problems.

    The other problem area seems to be the USB interface which most people now seem to be swapping out for the serial version. Indeed HS were exchanging returns of USB devices foc for some time... I'm loathe to invest another $80 in this at this time. :-(

    The main advantage for me right now over X10 is speed and lack of interfernce. The units react far far quicker to commands than X10 and I haven't had some of the filtering problems I had iniitially with X10.

    As I said I had at one time thought that perhaps ZWave could take HA to the masses in a way X10 hadn't but I'm afraid I don't think that way now. Which will be a shame as that will potentialy limit the development and production of an expanded ZWave product set here in the UK.

    HTH?

    Malcolm

  4. #4
    MalcolmSu
    Guest

    Default Re: ZWave woes

    ...oh and also every so often HS loses the USB interface (so everything stops working). I have to disconnect and reconnect the interface and then re-boot HS to get it working again.

    M

  5. #5
    MalcolmSu
    Guest

    Default Re: ZWave woes

    and then i read this morning "ZWave wins best of CES award"! http://www.zen-sys.com/

    So what do I know...

    Malcolm

  6. #6
    MalcolmSu
    Guest

    Default Re: ZWave woes

    and maybe Cisco know more than me too!

    http://www.cbronline.com/article_fea...E-FEA24F291147

  7. #7
    MalcolmSu
    Guest

    Default Re: ZWave woes

    and just to balance this thread off I found this interesting white paper that reviews and compares the latest RF based HA systems (inc ZWave)

    http://www.echelon.com/support/docum...hite_Paper.pdf

    in which Echelon are quite citical of RF based automation - but then maybe that's because supply powerline based systems...

  8. #8
    MalcolmSu
    Guest

    Default Re: ZWave woes

    yet another failed z-wave lamp module this afternoon - that's three in the past 12 months or so :-(

    To remove the failed device now I have to reset the remote (so losing all the device settings, scenes, etc), re-learn all the existing devices and then re-transmit them to HomeSeer. Bummer!!

    M

  9. #9
    Automated Home Guru FrankMcAlinden's Avatar
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    Feb 2004
    Location
    Melbourne Australia
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    Default Re: ZWave woes

    Hi Mal

    To remove the failed device now I have to reset the remote (so losing all the device settings, scenes, etc), re-learn all the existing devices and then re-transmit them to HomeSeer. Bummer!!

    Sounds like a lot of frigging around to me ....Are you sure you have to reset the remote ???.....Any idea whats causing the module to fail ??

    Frank

    PS.....Must mention this on the xPL Forum as theres a plugin currently being written for Z WAVE......

    Frank
    Home of FirM - the Multi Zone IR Transport System
    http://www.armaghelectrical.com.au/index.html

  10. #10
    MalcolmSu
    Guest

    Default Re: ZWave woes

    Are you sure you have to reset the remote???
    Yep, it's the only way. See here http://tinyurl.com/9u2vv

    The mechanics for moving z-wave devices in the home and for removing unwanted, and especially dead devices, have long been a bone of contention for z-wave users.

    Hopefully ACT/HomePro have been listening and will improve the setup in the future. With 20 z-wave devices at the moment it doesn't take that long to go round and set them up again but I'd hate to have to do it in the future with double or more devices.

    I don't understand why the modules blow but all mine have been accompanied by a light bulb popping.

    Light bulbs pop in my (everyones) house from time to time but I cannot say with certainty which came first - did the bulb pop and blow the z-wave unit or vice versa...

    I'm not sure how common this problem is but it would appear that I'm not alone - http://tinyurl.com/78aqk :-(

    At the moment this is an inconvenience - they've been replaced under their 12m warranty but I dread having to shell out another 35 to replace one after that time...

    Malcolm

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