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 -- "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
