17 Sep
2010
17 Sep
'10
1:17 p.m.
On 17 Sep 2010 at 18:57, Tony Duell wrote:
We don;t even know that the PC is sending anything.
Have you tried a
'scope or breakout box or whatever to make sure the TxD line is doing
something when you try to send a character?
Also, 'Null Modem Cable' covers a multitude of sins. What ahve you
done with the flkw control lines?
Also, there might be a set of jumpers to change from current loop to
RS232C. Many (if not most) punches tended to use current loop,
parciularly in CNC applications, so it's a pretty fair guess that
that's the way this one is set up.
--Chuck