On Wednesday 23 December 2020 02:27:54 Benjamin Brockhaus wrote: > Hi Gene, > > have a look at the hy_vfd module. > It uses the huanyang-version of modbus to communicate to the HY-VFDs. > > http://linuxcnc.org/docs/html/man/man1/hy_vfd.1.html > And where might this modules code be found? It is not part of a master install on any of my machines including the rpi4's clone of master that gets updated by git and rebuilt/reinstalled several time a week.
But I did find it in that git clone, just is not being built. And is not available via synaptic for any version from wheezy to buster. So, assuming I do a git clone on that machine in order to get that src, what to I configure in order to get it built and installed on THAT machine, which is still running wheezy? Big order maybe, thanks Benjamin. > Greetings, > Benjamin > > On 23.12.20 08:11, Gene Heskett wrote: > > Greetings all; > > > > I have discovered that this vfd has an rs485 port, and I have some > > rs485 bidirectional drivers, I bought a 10 pack of them for use as > > differential output encoder translators to ttl signals, which they > > are excellent for if programmed to only be receivers. So I have the > > hardware that can talk to this thing via rs485. Some mesa cards also > > have this, so my question then is what modules do I load up in my > > hal file that would use this comm channel to talk to and/or > > command/monitor this VFD. > > > > My current lashup is a 5i25 in the computer, a cnc4pc C1G bob on its > > p2, and a 7i76D on p3. > > > > It is an Huanyang HY02D223B VFD. > > > > Do we have a suitable driver for this? > > > > Looking at /usr/share/man/man9, I don't see a module that looks like > > a likely suspect. There is a spindle_monitor module, but that man > > page is less than half a screen full and doesn't say a thing about > > hooking it up. Very sparse docs IOW. I am assuming that I could > > somehow feed it the VO output, provided it was programmed to be a > > usable signal once AtoD'd in one of the first 4 field inputs of my > > 7i76D. But that is only a SWAG. I understand those AtoD's aren't > > quite real time as I have read they are successive approximation > > AtoD's with a 36 volt full scale input, meaning at best for a 0-10 > > volt signal they would have about a 1% granularity. That maybe > > sufficient for a spindle-at-speed detection, yet TBD, but probably > > needing a gain factor plugged in and I don't see such a parameter in > > the spindle_monitor man page. > > > > Many thanks for any enlightenmet. > > > > Cheers, Gene Heskett > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
