Mitsubishi SSCNET

HI
Very curious if you ever put a logic analyzer on and looked at the transactions to make the MR-S drives work? I have a number of them, with matching motors, that I would love to minimally test. I have an M500 rack with AW616 interface card, but no way to boot it.

If we knew what data was required, I could hack some hardware to write it...
Thanks!

suppose that question is for drdyna, as i don't have a M500 control (or access to)
same here: if someone gets a bus exchange log - i probably could help. even have an MR-S drive and matching HA83 motor somewhere...

I was hoping either you or drdyna would reply. I don't see any more direct way to contact him...? We have plenty of drives and motors to experiment with!

...and btw, speaking on the subj: just got the SSCNET III/H working. the last version: at 150Mbps, with full 22bit encoder resolution and so on...

dm17ry wrote: ...and btw, speaking on the subj: just got the SSCNET III/H working. the last version: at 150Mbps, with full 22bit encoder resolution and so on...

Great work !!!

SSCNET III/H still using 8B10B encode and scramble string similar SSCNET III?
Communication cycle which you are using 0.2222ms?

Thanks

hehe, thanks!
yep, same encoding. slightly modified like now it has only 1 start-of-frame symbol instead of 3 and the scrambler is seeded differently.
i'm running linuxcnc servo thread at 0.22, but currently with 0.44 comm cycle. to have the second half-period entirely free to accommodate linuxcnc's real-time jitter and PCI transfers.