USB to RS485 PC Adapter Installation

The USB-485M is a 2-wire USB to RS-485 serial communication adapter for RS485 use. It does not require an external power supply or complicated configuration. This is available from Automation Direct.
It has a Type A (plug) USB connector for the computer side and a universal female RJ45/RJ12 modular connector. This will accept RJ12 and RJ45 plugs. The USB-485M supports multiple baud rates and is USB V2.0 Compliant.

More information can be obtained at our website. This includes step by step instructions on installation and communication to a Solo Process Temperature Controller.


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  • Hello,
    I want to read the data of RS 485 in my MATLAB. I have connected RS485 to USB converter. But when I read in the MATLAB, it's showing that "Read (warning) The specified amount of data was not returned within the Timeout period." Any help????

    Ashwin Sundarka June 29, 2020 3:33 pm Reply
  • I want to collect print output from an old DOS Computer that controls a measurement system  Effectively removing the need for an old dot matrix printer.  Any suggestion how to approach this task?

    RHH1095 June 29, 2020 3:33 pm Reply
  • Can I use this to program a Signtronix sign? Thanks

    Hank Hill June 29, 2020 3:33 pm Reply
  • Hello Garry
    I have purchased on USB SERIAL CH340 (USB RS485)
    Once i press button Start in AdvanceHMI , 20 Errors come out
    can you explain, please

    vijay mamtani June 29, 2020 3:33 pm Reply
  • Garry
    Can you give me the Model and company name of the USB to RS485 adapter.And pinout of CP1W-CIF11/12 option board to RJ45 connector means which 2 pin of CP1W-CIF11/12 Option board will connect to which 2 pin of RJ45 connector.Another question is which one is best for me between CP1W-CIF11 and CP1W- CIF12.Because I want to communicate Omron CP1H to Advance HMI like you exact same.Distance between Advance hmi and plc about 60 metre.
    SCADA and Advance HMI is same thing? Please can you clarify me?At last don't feel pain for series of question.Because I am student of yours
    Respect to You ever.

    S.M.JAHIRUL ISLAM ROBEL June 29, 2020 3:33 pm Reply
  • can I plug this in to my Cable Modem/Router to get Home Phone Service without an Extra Modem(from my ISP)

    Badass Uchiha June 29, 2020 3:33 pm Reply

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