On 28 January 2010 16:12, Paul Keeton <[email protected]> wrote: > I have an mpg unit hooked up and it is working well. I also want to hook up a > second mpg encoder mounted to the operator panel to control feedrate > override. I can get one or the other working but not both hooked up together. > I believe the problem is that I need to seperate the mpg-a and mpg-b signals > for the to seperate encoders. Do you know what I would do to look at a > seperate mpg from the MPG pendant through the seperate lpt port?
You can call the signals anything you like. eg: net you-can-call-the-signal-anything-you-want parport.0.pin-12-in => encoder.0.phase-a net the-name-is-just-a-hook parport.1.pin-25-in => encoder.1.phase-a (some or all of the pin names above are probably wrong) It sounds like the MPGs go to different pins in HAL to achieve different things, so it should just be a case of adding an extra encoder to your HAL and net-ing it together. To create more than one encoder, look at the num_chan option here : http://www.linuxcnc.org/docview/html//man/man9/encoder.9.html If you wanted to have both MPGs have the same effect, you would need a physical or software switch controlling a demux and then take the demux output to the HAL pin to be controlled. http://www.linuxcnc.org/docview/html//man/man9/mux2.9.html -- atp ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
