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    Problems with T-stats

    RCS Serial Thermostats Error in Poll Thread, Argument 'Start' must be greater than zero.

    6/26/2008 12:51:50 AM RCS Serial Thermostats

    #2
    I would recommend checking you cabling. This looks like some garbage is being transmitted on the serial stream.
    -Rupp
    sigpic

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      #3
      Thanks Rupp.

      I checked all of the wiring, and I even changed the RS 485 chip in the hub. It still is doing the same thing.

      The last item is to change the RS 485 to serial adapter. I need to order one, so it will tak.e a few days for it to get here.

      I will let you know if that works.


      Thanks


      Steve

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        #4
        TR40 Serial comm errors

        This is a typical non grounded error

        Comm errors are common on TR40's Serial interface when not using a shielded and grounded cable between the 'control unit' and the RS485/232 converter.

        Anything RS485 must be grounded to work properly; This scenario was tested in our labs over a period of 5 months on 2 TR40, 1 with ground and the other without and the ungrounded TR40 gave us 18 errors on average per day.

        Yan.

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          #5
          This is great news. I've seen errors like this pop up for me, but I've ignored them because everything was still working fine. I'll rerun a cable this weekend that's shielded and grounded and see what happens.

          Thanks for the info!
          Joe (zimmer62)

          BLSecurtiy, AC-RF2, RCS Serial Thermostats, RFXCOM SMarthome SwitchLinc, mcsXap, Global Cache GC100, SqueezeBox, TWA_ONKYOINTEGRA, BLLogMonitor, BLPlugins, BLRadar, BLSpeech, BLZLog.aspx, HSTouch (Windows, iPhone, iPod), USB Mimo touchscreens, VMWare Server, Vortexbox, Windows Home Server, MyMovies, Windows Media Center, X10, ZWave, and much much much more.

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