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Thread: Totally Lost

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    Unhappy Totally Lost

    Im very new to this so please bare with me.

    I recently went out and purchesed and pretty good laptop thinking that i will be able to just stick a usb to a r232 with a parrallel extention from the the lap top to the machine, what a huge mistake that was. when i first tried send a program i recieved an error stating that it could not find Com 3 so i installed some drivers and now i just use com 1, now when i hit send it says it is sending then it just seems like it locks up. The machine doesnt seem to be detecting that the laptop is connected to it. this may be just a problem within my setting but i really have no idea. so here i am, spent all this money on a laptop and very frustrated. I am using Mastercam X, Machine is a Takisawa Turning Center with Fanuc MCU. I have been going to school for programming and believe im ready to start some simple programs and my work. this damn connection this is hold me back from my raise damnit., lol. any help is apreciated. thanks


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    Community Moderator Al_The_Man's Avatar
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    First you have to make sure that data is comming out of the USB/com port, this is where a break-out box is a must for working with RS232.
    Also make sure the PC side is set to software H.S. & Hardware Handshake off.
    On this set up I would tend to use a three wire cable and jumper out the H.W. Hansdhake both ends.
    On 9pin jumper 1-4-6 & 7-8 on 25p 6-8-20 & 4-5
    Use connection only from 9p to 25p 2 -2, 3-3, 5-7.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).

    “Logic will get you from A to B. Imagination will take you everywhere.”
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    yea i guess i really do need to make sure the data is comming out but i really dont have a way to do it. The end of the RS232 has a little LED light. but i have never seen it light up. so maybe nothing is going thru it.


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    Registered jackson's Avatar
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    Quote Originally Posted by Al_The_Man View Post
    First you have to make sure that data is comming out of the USB/com port, this is where a break-out box is a must for working with RS232.
    Also make sure the PC side is set to software H.S. & Hardware Handshake off.
    On this set up I would tend to use a three wire cable and jumper out the H.W. Hansdhake both ends.
    On 9pin jumper 1-4-6 & 7-8 on 25p 6-8-20 & 4-5
    Use connection only from 9p to 25p 2 -2, 3-3, 5-7.
    Al.
    all is right fanuc has to wired the way he staited and the make sure in your settings and make sure your i/o channal is at 0
    individual who perceives a solution and is willing to take command. Very often, that individual is crazy.


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    Al
    do you mean by those number that i have to have a cable wired specifically? didnt really understand. tonight i tried all the configurations as i used with Gibbs cam. now it seems that the information is sending thru the rs232 because the LED light up when i hit send, but the CNC machine doesnt recognize that the cable is plugged in. when i set the MCU to recieve i get an error say: DR SIGNAL OFF. Normally when the machine is ready to recieve it says LSK. so you think it may be the settings arent right or do i need a different cable. i kinda have a feeling it is the parallel extention but not sure.


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    Registered ImanCarrot's Avatar
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    Yes, the cable HAS to be wired specificaly as said. You can get RS232 boxes for a couple of dollars from radio spares or radio shack that let you plug in little pins to make the correct connections.. it sort of goes in between two cables.. like splitting the ribbon cable and crossing over some wires.
    Last edited by ImanCarrot; 02-22-2007 at 08:43 AM.
    I love deadlines- I like the whooshing sound they make as they fly by.


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    would some kind of pcm card work aswell? or would that require some custom wiring also? i am also using the same parallel adapter as i was before on a different laptop with gibbs and that worked. so i dont understand why it doesnt now.


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    USB to Serial adapter for DNC is somewhat of a crapshoot - some adapters may work others won't, I bought 3 none worked. After about two weeks of checking cabling, messing with FIFO buffer settings and other such nonsense I finally gave up and when with a tower w/ real serial port on a shop cart - worked like a champ first time. PCMCA card may work but they are quite expensive $100.00+ last time I checked - again no guarantees this will work either.


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    Registered holbieone's Avatar
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    use a strait through cable with a jumper box at the end http://www.sfcable.com/store/31d3-f1.html

    connect the correct pin numbers on one side of the box to the correct pin number on the other


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    USB to DB9 and DB25 Adapter
    http://www.sfcable.com/catalog/whole...s/UB30-50.html

    This is pretty much what i am trying to use right now. is there a way to use that jumper box with those cables or am i going to need a usb to a db25 then the jumper.

    i also found this site (http://members.aol.com/easyio/schematics.html) to try and figure out the wiring but not sure which one i need for those cables
    Last edited by FAMOUSX1; 02-22-2007 at 06:38 PM.


  • #11
    Registered holbieone's Avatar
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    Quote Originally Posted by FAMOUSX1 View Post
    USB to DB9 and DB25 Adapter
    http://www.sfcable.com/catalog/whole...s/UB30-50.html

    This is pretty much what i am trying to use right now. is there a way to use that jumper box with those cables or am i going to need a usb to a db25 then the jumper.

    i also found this site (http://members.aol.com/easyio/schematics.html) to try and figure out the wiring but not sure which one i need for those cables
    it should work ,the 9 to 25 looks like a straight through adaptor


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    how does the jumper work. do i solder the wires al the way across or do i use the little holes in the center. also could i just get a female db9 and a male db25 and just wire as directed. kinda make my own with some thing like this.
    http://www.l-com.com/item.aspx?id=3096 .


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