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    Getting Error 8021 (Internal error retrieving device control block for the port)

    When I first startup Homeseer the AB8SS runs fine but after about 30 minutes my log fills up with the following message and I have to shutdown and restart Homeseer:

    9/6/2006 6:04:06 PM AB8SS Plug-in Diagnostic Error 8021 (Internal error retrieving device control block for the port) in procedure send_command_string of User Control hspi

    Any ideas what could be causing this problem?

    Thanks
    Mack

    #2
    Mack,

    This sounds as if it might be an issue with the COM port. Is it connected to a standard COM port?

    --David

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      #3
      No, it was connected to a 4 port USB Serial Adapter as I don't have any standard serial ports available. I did try connecting to a standard port and the problem went away. I'm thinking that I need to purchase a different USB Serial Adapter. Do you know of a USB to Serial Adapter that people have had succcess running the AB8SS device?

      Thanks
      Mack

      Comment


        #4
        Hi, Mack, I'm afraid I don't know which serial adapters are successful. The AB8SS has no buffer, so its timing needs are more critical than other serial devices. Anyone using an AB8SS with a USB serial port?

        --David

        Comment


          #5
          I am running mine successfully on a 8-port Edgeport, which is a USB -to- 8-port Serial. No problems with Dual AB8SS, Rain8Net, HAI OmniPro all running off this setup.


          Larry.
          -Larry

          A member of "The HA Pioneer Group", MyWebSite

          Plugins:
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          Comment


            #6
            Hi Larry,

            Thanks for the information I will look into getting the Edgeport device and hopefully they make a 4-port model.

            Thanks
            Mack

            Comment


              #7
              I have a 6 port pci serial expansion card, ab8ss works fine with it
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