Does the 7i92-7i76-7i74 firmware support SSI ?

Some can be SSI slaves - can you recommend some models?

Other interfaces - how can I read data from this interface to LinuxCNC into start position parameters?
I want use 7i92

Thanks!

I dont recall which specific drives do this, just that I have encountered them over the years
helping people doing retrofits.

Sorry for the late answer, can you mak 5i25_7i77_7i74 + ssi as well.

Rght now I'm working on the system with 5i25 as main Anything IO board.

freeby.mesanet.com/5i25_7i77x1_7i74x1D_ssi.bit

Hi,

Finally we have tested the firmwares.

On 7i92 it works good.
But on the 5i25 0-3 channels a lot have of noise. Especially when we power up the servo. See attached halscope screenshot - sharp spikes on the signal. Channels 4-7 work good. May be there's a bug in the firmware?


By the way we've found that 8xRJ45 connector's shield is not grounded, so until we connected it to the ground we had a lot of noize on the ssi channels. I've not found anything about that in the manuals.

Another thing - using pair of 7i92+7i77 we have some notches on the 4th analog out (other channels work fine). Notches appears mostly near 0 output value from one to ten seconds per notch. We have tried to change 3 different 7i77, changed the cables with no effect, but if we connect the same 7i77 board to 5i25 everything works smooth.

Those look like they could be single-bit errors. Is there a checksum in the data?