Mori Lathe Comm issue

[jeff]

I have a Mori SL-15 with a yasnac i80 control (I think).

This machine can read from my pc just fine.

It can send and receive from 2 other lathes in our shop (Haas HL-2 and another Mori).

The problem is this machine will NOT send a program to my computer!

I've never seen this before where it will send to another machine,but not to the pc.

 

Any help will be appreciated.

Thanks.

[J Coulston]

I had the same problem on an Okuma lathe, turned out to be a bad board.

[jeff]

You had the same problem? could communicate with other machines but not with the pc?

I would think that if the board is bad, the machine wouldn't talk to other machines at all.

[J Coulston]

I was sending files back and forth one day and the next I could only send to the machine not back out to the computer.

 

Something on the comm board in the Okuma went bad. Okuma came out and put a new board in and I was able to send both ways.

 

 

When you say send machine to machine are you RS232 between two machines? I never even thought about that possibility. I was only going between machine computer.

[jeff]

quote:

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When you say send machine to machine are you RS232 between two machines?

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Yes, because that lathe won't send to the pc.

Same port,same cable and everything.

It boggles my mind.

[J Coulston]

That is very strange.

 

Off the wall suggestion, try flipping the cable end for end??

 

Sorry I am at a loss.

[Allan]

The problem stems from the output voltage level, RS232 is voltage based switching from 0v to as high as 12V. Your UART chip on your PC most likely does not have tolerance for a low input voltage. Like if the machine only outputs 0v to 5V your PC is rejecting the info as noise. Try a difrent comport on the PC if that is a possibility, if not buy a cheap PCI serial card and cross your fingers. You could most likely buy 100 PCI cards for the cost of the machine card. IMHO

 

HTH

 

Allan

[jeff]

Thanks Alan,

I have a serial card already,although not a 25 pin, it's a 9 pin. but all other machines communicate with it just fine.

I had a feeling it's something like that, but I had nowhere to start looking.

Now I do.