huanyang vfd won't communicate get errors.

jcloase wrote: Gold Border,
Tried getting rid of -p did not use stop bits. When parity is removed it appears that hy_vfd defaults to even parity. I tried all three combinations the same result. The data that hy_vfd is sending over and over appears to be
0x01 0x01 0x0B 0x2c 0x30 or decimal 01 01 13 44 48. Thanks

Is that what you see with the -g (debug) option turned on in the driver?

That is what I see monitoring the RS485 with a third pc. It is what hy_vfd is sending over and over about one a second..

So, is there any output from hy_vfd with debugging turned on?

Andy,
Can you explain how to turn on debugging.

Gentlemen,
I am pretty sure I have figured out what is wrong. I found a thread about missing RS485 chips on MACH support. I checked and I have no chip in my vfd. I ordered some and will let you all know after I install it.
Thanks for all your efforts

jcloase wrote: Andy,
Can you explain how to turn on debugging.

Use the -g switch in the loadusr line, as described in the manual page.
linuxcnc.org/docs/2.7/html/man/man1/hy_vfd.1.html

Thanks!

Put the RS485 IC in the vfd and still no comms. I've beat this dead horse long enough I give up.

No eBay APP ID and/or Cert ID defined in Kunena configurationeBay has many adverts saying that they sell genuine HY VFDs and to beware of fakes.



Shows the differences. Which is yours?

It's the real thing. I have had it form 6 or 7 years and there was no RS485 IC in it.. I don't know if the software to work with it is in this one. Maybe I'lll buy and new one. I can see hy_vfd putting data out but the vfd just doesn't answer.