On 22 Sep 2014 02:48:18 GMT, "DoN. Nichols"
wrote:

On 2014-09-20, Karl Townsend wrote:
My son has his old matsuura up and running. Its pre LAN connection,
needs the RS232 port to download CNC programs.

I did this ages ago, but have forgot how.

Question 1, how do I wire the cable?

Depends on whether it is doing handshaking.

The minimum is (for the DB-25 connectors)
If it is a DE-9 connector instead -- on many newer computers)
the pin numbers change, and I don't work with those much.

Data Ground from pin 7 to pin 7

Data leads: (assuming a crossover, with both ends the same time
of RS232

2 - 3
3 - 2

If there is more needed (handshaking) add:

5 - 6
6 - 5

and maybe tie pin 20 on each end to one of the two before.

And to be sure to deal with voltage differences between the two
chassis -- safety ground from pin 1 to pin 1.

Question 2, what program works with W7 to talk to the control?

No experience with Windows 7 -- sorry. (Nor with much of any
other Windows, for that matter.) Way back when, I liked kermit for the
transfers between unlike computers.

For unix machines, I would usually use tip or cu -- but those
are unlikely to be found on a Windows box.

Last time I did this it was DOS and Procomm.

O.K.

Good Luck,
DoN.

If Karl can come up with an email addy that will accept some bigger
files..I think some are around 150 megs, though most are smaller..Ill
send him my library of CNC/DNC software and diagrams data etc etc.

Or burn em to a CD and mail it to him

Gunner, CNC tech


"At the core of liberalism is the spoiled child,
miserable, as all spoiled children are, unsatisfied,
demanding, ill-disciplined, despotic and useless.
Liberalism is a philosophy of sniveling brats."
PJ O'Rourke