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  1. #1
    Join Date
    Jan 2008

    Fanuc FTP problem


    I have a Makino v33 with a Professional 3 Fanuc control. A couple of years ago we began to have trouble with the FTP server. In the middle of transferring a file form the PC to the control it would drop the connection. We've swapped out the cable, the computer, tried both physical Ethernet ports, the new router, direct cable without a router, and even a new PCMCIA card.

    I can PING the machine from any computer but the FTP server does not respond to connection request. Only way around it is to power cycle the machine. Any suggestions on how to fix it?

    Thank you,

  2. #2
    Join Date
    Dec 2005

    Re: Fanuc FTP problem

    I am not familiar with your environment specifically, but I do know a little about FTP.

    What FTP client are you using? Try setting it to passive.

    What OS is your client PC? Verify your MTU is set to match your machine.

    Is the PCMCIA ethernet card on the machine 10, 100, or 1000 base-t. Is it full duplex or half? Some older ethernet cards are 10 base-t and can flip/flop duplex randomly when connected to a modern switch. If your switch is managed you should look the port statistics to see what's happening.

  3. #3
    Join Date
    Apr 2012

    Re: Fanuc FTP problem

    You said you put a new PC card in the control. Did you do a DSFORMAT?
    What mode are you running your DS in? Buffer/Storage/FTP?
    Have you tried WinSCP for an FTP server on your PC?
    Check the Data Server function parameters 921 - 923 for host OS setting. Heck, may as well check ALL the DS parameters against the original setting from the factory.
    0, 100, 904 - 970. Manual is B-64014EN

  4. #4

    Join Date
    Jul 2020

    Re: Fanuc FTP problem

    Hi guys!
    I have similar problem. My machine is 2004 model johnford dmc1200 and its control unit fanuc 18M. Could you explain me about how can I connect dataserver and connect with FTP program? I connected PC to dataserver as like (dataserver)-RS422-Ethernet converter- PC and I have set up alftp program but I couldn't success it
    Thank you

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