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IndustryArena Forum > Machine Controllers Software and Solutions > Fanuc > 11m serial pinout and keep relay questions
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  1. #1
    Join Date
    Feb 2013
    Posts
    151

    11m serial pinout and keep relay questions

    Hello all,

    I have 2 hopefully easy questions on my 11m machine.

    First - does anyone have the pinout diagram for the rs232 port (CD4) on the main board (a16b 1010 0050) and a pinout of the rs232 port (CDI) on the graphics board (a20b 1000 0802)? Are they the same?

    Second - is there any documentation on how the keep relays tie back to the IO lines? IE keep relay 1 goes to x1.1 and so on.

    Thanks,

    Cj

  2. #2
    Join Date
    Dec 2003
    Posts
    24221

    Re: 11m serial pinout and keep relay questions

    AFAIK they are the same pin out, I can check later today.
    I have the RS232 Fanuc manual for the 0 and 10/11if you care to send a PM with email add.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  3. #3
    Join Date
    Sep 2005
    Posts
    767

    Re: 11m serial pinout and keep relay questions

    Al_The_Man is right. (Hi Al)

    The 20-pin Honda connectors used on the Fanuc 10/11/12/15 and some later controls all had the same pin assignments.

    20-pin Honda ------------------------------- DB25-pin (on the outside of the cabinet)

    Pin 5 (ER) -------------------------------------- Pin 20 (DTR) Data Terminal Ready - output that Fanuc turns HIGH when it opens the port
    Pin 8 (RD) -------------------------------------- Pin 3 (RX) Receive Data - input for serial data received from other device
    Pin 9 (SD) -------------------------------------- Pin 2 (TX) Transmit Data - output for serial data sent from Fanuc to other device
    Pin 16 (CD) ------------------------------------ Pin 8 (DCD) Data Carrier Detect - input from other device. used by MODEMS to detect phone carrier signal.
    Pin 17 (SG) ------------------------------------ Pin 7 (SG) Signal Ground - ground reference for all signals
    Pin 18 (DR) ------------------------------------ Pin 6 (DSR) Data Set Ready - input to Fanuc indicating that the other device is ready
    Pin 19 (CS) ------------------------------------ Pin 5 (CTS) Clear to Send - input to Fanuc that MUST be high for the Fanuc to transmit (hardware handshake)
    Pin 20 (RS) ------------------------------------ Pin 4 (RTS Request to Send - output that Fanuc turns high when it opens the port

  4. #4
    Join Date
    Dec 2003
    Posts
    24221

    Re: 11m serial pinout and keep relay questions

    Quote Originally Posted by Dan Fritz View Post
    Al_The_Man is right. (Hi Al)
    Hi Dan, where you been, I'm all alone here!:drowning:

    Charles, run your other Issue by Dan!
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  5. #5
    Join Date
    Sep 2005
    Posts
    767

    Re: 11m serial pinout and keep relay questions

    Hi again Al,

    I've been pretty busy lately. I've written a totally new DNC system (PC-DNC Pro) and I've also become a single-dad with a 12-year old son, who occupies about 120% of my available time.
    I'll try to get back into the grove, but it wont' be easy (time-wise, that is).

    Dan

  6. #6
    Join Date
    Feb 2013
    Posts
    151

    Re: 11m serial pinout and keep relay questions

    Al, Dan,

    Thanks for the help. Just wanted to double check on the serial port... didn't want to fry anything. I have figured out the keep relay issue too. There are 2 other contacts in parallel with the -LY2 contact. When I switched the ladder display over to "Adress" (you have to love the Fanuc spelling) I found that the YLS-2 signal has the address of K00.4 - so I found the keep relay... somehow it was cleared in the power bump. I'll play with resetting it later this week.

    Charles

  7. #7
    Join Date
    Apr 2009
    Posts
    1379

    Re: 11m serial pinout and keep relay questions

    Good to see you back, Dan.
    In spite of what Al says, there is plenty of help with posts! lol.

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