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How to find out which COM port something is plugged into?

Discussion in 'Hardware' started by jack-o-bytes, Feb 13, 2013.

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  1. jack-o-bytes

    jack-o-bytes Thread Starter

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    Hey everyone, We have some laptops at college that are forever being a pain in the butt. Basically they have 3 USB ports on them. We have to connect a PLC program machine to them using a USB - Serial - Paralelle converter. (I think that is how it goes) anyways basically the laptops never seem to recognise which COM port they are plugged into which means you spend ages each lesson going manually through each of the COM ports until you find the one that it is plugged into.

    Is there any way to find out which COM port the PLC device would be using so that we dont have to randomly select them for ages?

    Any help would be great. Thanks in advance, Jack
     
  2. managed

    managed Trusted Advisor Spam Fighter

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    It should tell you in Device Manager under Ports.
     
  3. jack-o-bytes

    jack-o-bytes Thread Starter

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    How would i get into that?
     
  4. managed

    managed Trusted Advisor Spam Fighter

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    Start > (Run if in XP) type DEVMGMT.MSC press Enter then in the new window click on '+' next to 'Ports'
     
  5. jack-o-bytes

    jack-o-bytes Thread Starter

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    Okay cool and that shows which COM ports currently have stuff plugged into them?
     
  6. managed

    managed Trusted Advisor Spam Fighter

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    I'm on XP right now and it shows what device is connected to each COM port number, you can right-click > Properties to get some more info. I think it's the same for other versions of Windows.
     
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