Yep. You got it
Jim C
Kirk Wallace
<[EMAIL PROTECTED]
company.com> To
Sent by: "Enhanced Machine Controller (EMC)"
emc-users-bounces <emc-users@lists.sourceforge.net>
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Subject
Re: [Emc-users] Differental Input
03/31/2008 01:07 to PWM
PM
Please respond to
"Enhanced Machine
Controller (EMC)"
<[EMAIL PROTECTED]
sourceforge.net>
On Mon, 2008-03-31 at 08:09 -0400, [EMAIL PROTECTED] wrote:
> You have to reference the signal with it's counterpart. The signal
should
> have two pins, a plus and minus. A comparator would work to convert the
> signal to a single ended (referenced to ground) signal.
>
> or use a RS-422 transeiver chip (ST490AB).
>
> Jim C
Something like this?
http://www.wallacecompany.com/machine_shop/RS422-1a.jpg
--
Kirk Wallace (California, USA
http://www.wallacecompany.com/machine_shop/
Hardinge HNC lathe,
Bridgeport mill conversion, doing XY now,
Zubal lathe conversion pending
Craftsman AA 109 restoration)
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