cenote Posted December 5, 2009 Share Posted December 5, 2009 Having a new problem this year I think with controllers. I noticed this year, when my first controller trips off, the rest of the controllers down the line do not work. I thought, if one didn't have power, the rest would still work. Is this right? I thought I remembered last year, I would have only certain parts of the display go off, not the entire thing.Seems like the board needs to have power in order for the communication wire to work down the line. Any thoughts? Link to comment Share on other sites More sharing options...
-klb- Posted December 5, 2009 Share Posted December 5, 2009 I have never seen an unpowered controller cause ones down the line to not work. After all, the copper traces just tie the RJ-45 jacks together, and connect into the RS-485 transceiver chip.I wonder if by happenstance, the one that tripped out has a faulty transceiver, which, when powered down, is shorting the signal out? Link to comment Share on other sites More sharing options...
cmoore60 Posted December 5, 2009 Share Posted December 5, 2009 What type of adapter are you using between the computer and the LOR network?IF it is the SC485, this adapter is powered from the nearest controller. Usually less than 100 feet. Technically the others put power on the line....but the drop is to great over 100feet. So if the controller is the first one after the computer that is tripping and you are using the SC485, then you will loose total communications.Chuck Link to comment Share on other sites More sharing options...
cenote Posted December 6, 2009 Author Share Posted December 6, 2009 Cmoore, I am using the com port adapter. Don't know the tech number on this. all my cat wire jumps are about 50-75'. THe one that trips is the first one in line, and is only 25' from computer. Than from there, it goes via a 50' cable to next.Thanks, i'll mess with changing some stuff around today to try and correct. Link to comment Share on other sites More sharing options...
cmoore60 Posted December 6, 2009 Share Posted December 6, 2009 IF you are using the adapter that plugs into the comm port that is the SC485. To test my theory, you can simply unplug a controller other than the first one and see if you see all but that one.If you are tripping the GFI that is powering the first controller then your adapter is going dead. The electronics inside the comm port adapter as you are saying is not powered.Chuck Link to comment Share on other sites More sharing options...
cenote Posted December 6, 2009 Author Share Posted December 6, 2009 cmoore60 wrote: IF you are using the adapter that plugs into the comm port that is the SC485. To test my theory, you can simply unplug a controller other than the first one and see if you see all but that one.If you are tripping the GFI that is powering the first controller then your adapter is going dead. The electronics inside the comm port adapter as you are saying is not powered.ChuckThanks, the other Chuck Link to comment Share on other sites More sharing options...
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