Re: [CAD_CAM_EDM_DRO] Troubleshooting a BTR

vinnygenovese wrote:

>I am trying to bring an IKEGIA FX25-N / Fanuc 5T back to life. There is a BTR
>that I am trying to bring online. Problem is I don't have any instructions or dip
>switch settings. I uploaded a photo to http://radiantheat.com/UCM-BTR.jpg.
>The board has a single LED , which seems to 'blink' when i send data, but it
>seems no signal gets through to the Fanuc 5T. (or I am sending the wrong
>commands). I googled and googled. It seems they are out of business. Any
>hints on the dip switch's or other hints would be very welcome.
>
>

Well, I think it can be deciphered. It looks like there is no
microprocessor there,
I think the big chip is a 40-pin UART. It also looks like the markings
have been
sanded off that chip, but by tracing the power pins, you may be able to
figure
out which if the several 40 pin uarts it is. It is socketed, so pulling
it and
looking on the back may have some markings that at least identify the
manufacturer,
which may be all you need to narrow down the type of UART. Once you
know this,
you can see which dip switch is connected to which pin, and with the
crystal frequency,
you can figure out how to set the baud rate and transmission characteristics
(# bits, even/odd/none parity, etc.)

I could be off on this, but there is clearly no EPROM chip, and
something about
it just makes me think it predates one-chip micros. I note 1488 and
1489 chips,
and wonder if it is getting the right power to those chips, as they need
both
positive and negative voltages.

I don't know Fanuc machines, but most systems need some switch settings
and/or
commands or buttons to put them in the right mode to read a program from
tape
or to go into DNC mode.

In DNC mode, the computer becomes a file server for the CNC control, and
doesn't send anything until the CNC control asks for it by file name.

Jon