Mitsubishi SSCNET

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20 Feb 2017 13:52 #88341 by Burtski
Mitsubishi SSCNET was created by Burtski
Hello All,
I have a Mitsubishi powered VMC that is need updates.
The Axis drives are MDS-A-SVJ 's and the spindle is MDS-A-SP.
These appear to be controlled via SSCNET. I am not finding much info on this.
It appears to be some type of high speed serial multi drop bus.

Any pointers would be great.
Thanks

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21 Feb 2017 06:52 #88421 by tommylight
Replied by tommylight on topic Mitsubishi SSCNET
www.google.com/search?q=%22mitsubishi+ss....20.2763.k8Fpxl99am8

Plenty of information, how helpful it is, i do not know. Some pdf look very promising.

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21 Feb 2017 20:51 #88462 by Burtski
Replied by Burtski on topic Mitsubishi SSCNET
Yep, I have looked through all of that.
There just does not seem to be much info on the MDS-A drives in the first place.
They do appear to be SSCNET but it is not clear which version.
It looks like the MDS-A drives are primarily used with the MELDAS controls.
If I need to put new drives into this machine, it is not worth saving.

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24 Feb 2017 12:38 #88577 by andypugh
Replied by andypugh on topic Mitsubishi SSCNET
If the machine is currently functional then it is just about plausible that you could monitor and reverse-engineer the protocol.

However, unless you want a project, it might not be sensible to attempt.

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24 Feb 2017 16:13 #88587 by Burtski
Replied by Burtski on topic Mitsubishi SSCNET
Going to drag the o'scope and logic analyzer over to the shop this weekend.
I have not seen to many other people asking / searching for this.
Is there anyone else that might be interested in this?
The machine itself is a Mighty Comet.
I get the impression that there might be a fair number of these sitting in back corners of shops.

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24 Feb 2017 20:21 #88596 by rodw
Replied by rodw on topic Mitsubishi SSCNET
Would this help?

www.yurtaev.com/

He says he has a driver for LCNC 2.7 and links to the PCI card he made on eBay

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24 Feb 2017 21:07 #88599 by andypugh
Replied by andypugh on topic Mitsubishi SSCNET
Good find!

I suppose that _might_ do the trick :-)

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24 Feb 2017 22:17 #88602 by Burtski
Replied by Burtski on topic Mitsubishi SSCNET
I made contact with www.yurtaev.com early on.
The MDS-A-SVJ drive predates this card.
The response from www.yurtaev.com was pretty much " I doubt it ".

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24 Feb 2017 22:43 #88604 by andypugh
Replied by andypugh on topic Mitsubishi SSCNET
Can you get one sale-or-return to try it?

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24 Feb 2017 23:06 #88605 by dm17ry
Replied by dm17ry on topic Mitsubishi SSCNET
actually i said i'm pretty sure it won't work with MDS drives as the current firmware is SSCNET II only (MR-J2S-B drives)
i have a basic understanding of SSCNET I protocol (MR-J-B, MR-J2-B) and plan to implement it in the future.
but i haven't seen MDS drives yet and judging by the differences between SSCNET I and II (no similarities at all except the link-level) i can guess it will not be SSCNET-compatible either. but i just bught a MDS-A-SVJ drive on ebay and will have a look at it when it arrive. but it gonna be tough without a woking setup :)

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