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  1. #1
    Join Date
    Sep 2006
    Posts
    11

    Question Increasing Memory in Fanuc 18?

    I was talking to the Okuma tech today on my Okuma 511V with Fanuc 18 controller about the memory, we have like 30k on it, and he said it's just a parameter setting to increase it. Does anyone know what parameter it is? Thanks!

    Justin

  2. #2
    Join Date
    Dec 2003
    Posts
    24260
    Some options require a hardware addition also, but the 18 is P9921:
    Bit#0 = 640m
    Bit#1 = 320m
    Bit#2 = 160m
    Bit#3 = 80m
    Bit#4 = 40m
    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 2006
    Posts
    11
    Quote Originally Posted by Al_The_Man View Post
    Some options require a hardware addition also, but the 18 is P9921:
    Bit#0 = 640m
    Bit#1 = 320m
    Bit#2 = 160m
    Bit#3 = 80m
    Bit#4 = 40m
    Al.
    Thanks I will try that tomorrow, is there any risk involved in changing it? As to losing parameters or anything?

  4. #4
    Join Date
    Dec 2003
    Posts
    24260
    Quote Originally Posted by jdocmm View Post
    is there any risk involved in changing it? As to losing parameters or anything?
    Not normally, you may get an error message if the physical memory is not present, I would try one size at a time, starting with the low one, see what the parameter is now.
    Always make sure you have the parameters copied anyway.
    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 2006
    Posts
    11
    Quote Originally Posted by Al_The_Man View Post
    Not normally, you may get an error message if the physical memory is not present, I would try one size at a time, starting with the low one, see what the parameter is now.
    Always make sure you have the parameters copied anyway.
    Al.

    Hey Al, I went ahead and saved my parameters, and my P9921 to begin with was

    0 1 0 0 1 0 0 0

    so i tried doing

    0 1 0 0 0 1 0 0

    thinking that was correct, but that took me to 0 k memory, should I be changing the # in bit 6? please advise, thanks

  6. #6
    Join Date
    Dec 2003
    Posts
    24260
    Normally only one of the memory bits is set, the only thing I can think is you do not have the physical memory present, the option only enables it, you may want to contact Tulip Memory, they sell expansions for Fanuc mem and may be able to advise you if you need hardware as well.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

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

  7. #7
    Join Date
    Feb 2007
    Posts
    38
    I'm pretty sure (90%) that going from 80m to 160m will require at least an ~0351 module. The ~0352 module is the biggest module fanuc has for the 18 series. I don't think they (fanuc) will sell you one unless it's already installed in your control.

  8. #8
    Join Date
    Feb 2007
    Posts
    592

    Question Registerable programs?

    What is the Max # of registerable programs a Fanuc 18 can support?

    Currently I see Ooooo (MDI) + 63 for a total of 64.

    Is this it? or can this number get pumped up too?

  9. #9
    Join Date
    Dec 2003
    Posts
    24260
    9923 bit #5 = 125 registerable programs.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

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

  10. #10
    Join Date
    Feb 2007
    Posts
    592

    Thanks Al!

    Next time I purge the machine I will give those settings a try.

    Machine is a 1998 Mori Seiki SV50B with the MSC-518 labeled Fanuc 18 (pre i model).

  11. #11
    Join Date
    Nov 2005
    Posts
    219
    we just upgraded our 18-I to 1000 part prgs and 2560m
    it required hardware.

    cost about 3500.00 I think

    Jon

  12. #12
    Join Date
    Dec 2006
    Posts
    84
    deleted

  13. #13
    Join Date
    Sep 2006
    Posts
    11
    Quote Originally Posted by Al_The_Man View Post
    Normally only one of the memory bits is set, the only thing I can think is you do not have the physical memory present, the option only enables it, you may want to contact Tulip Memory, they sell expansions for Fanuc mem and may be able to advise you if you need hardware as well.
    Al.
    Well it appears we need to buy the expansion module to get it to work, thank you for the info though!

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