Re: Parallel Port data

Hi Tom,

I sent this reply a week or two ago. TurboCNC, CNCpro, MaxNC, STEP4SD
and others typically have the "coolant" (M3,M4,M5) and "spindle"
(M7,M8,M9) controls for parallel port bits. Some are user configurable,
some are not.

HTH

Alan KM6VV

>Hi Frank,
>
>Well, there are four "strobes" that can be used:
>
>#define SPP_STROBE 0x01 /* nStrobe (pin 1) */
>#define SPP_AUTOFD 0x02 /* nAutoFd (pin 14) */
>#define SPP_INIT 0x04 /* nInit (pin 16) */
>#define SPP_SLC_IN 0x08 /* nSelectIn (pin 17) */
>
>If they are not is use (for driving motors), they are fair game!
>Connect an output pin to a solid state switch, or a relay driver. Of
>course, you'll need to have command of the appropriate printer control
>bit in the controller program you are using.
>
>MaxNC (I think) has assigned a few outputs:
>
> 1 m3 output (M3 M4 M5 spindle control)
> 14 m4 output
>
> 16 m7 output (M7 M8 M9 coolent control)
> 17 m8 output
>
>I know that CNCpro can command (and configure) output pins as well.
>
>I'd hook up a voltmeter to each of the pins (and a ground), and see if
>your controller program can control any of them.
>
>HTH
>
>Alan KM6VV


>shymu@... wrote:
>
> Is there a way to config the printer port so I can turn on or off
> spindle and vac motors. I know about adding a second port but would
> rather not. Seems to me I should be able to run 4 axes and still have
> two lines left to control a spindle and vac system.
>
> Frank

tcsibor@... wrote:

>
> Hi Jon,
>
> Any software that outputs to the parallel port, CNCPro, TurboCNC,
> mastercam etc.
> I believe that the lister was somehow multiplexing one data line and
> sending pre-configured codes (pobably m codes with an identifier).
>
> Thank you
> Tom
>
> --- In CAD_CAM_EDM_DRO@y..., Jon Elson <elson@p...> wrote:
> > tcsibor@v... wrote:
> >
> > > I seem to recall reading a post a while ago about being able to
> > > control extra data (relays etc.) through the parallel port from G
> > > or M codes.
> > >
> > > If anyone has that information, I would sure appreciate it.