RS485 For Hypertherms

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30 Jun 2020 07:51 #173179 by thefabricator03
Yes it does, I must of stuffed up my wiring but I dont know how it still works. Maybe that is why the USB to RS485 connector did not work.

I have amended the reference document.
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30 Jun 2020 08:22 #173180 by phillc54
Replied by phillc54 on topic RS485 For Hypertherms

thefabricator03 wrote: Yes it does, I must of stuffed up my wiring but I dont know how it still works. Maybe that is why the USB to RS485 connector did not work.

I have amended the reference document.

Thanks Stefan, I have pushed it to Git.
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30 Jun 2020 10:13 #173183 by snowgoer540
Replied by snowgoer540 on topic RS485 For Hypertherms

thefabricator03 wrote: I dont know how it still works.


Magic. Truthfully I still don't understand how you don't need a RS-232 to RS-485 converter either. But, I'm OK chalking it up to Magic.

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30 Jun 2020 11:02 #173185 by rodw
Replied by rodw on topic RS485 For Hypertherms

snowgoer540 wrote:

thefabricator03 wrote: I dont know how it still works.


Magic. Truthfully I still don't understand how you don't need a RS-232 to RS-485 converter either. But, I'm OK chalking it up to Magic.


I thought Stefan was still using the RS485 converter that came with is USB interface.

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30 Jun 2020 11:24 #173186 by snowgoer540
Replied by snowgoer540 on topic RS485 For Hypertherms

rodw wrote: I thought Stefan was still using the RS485 converter that came with is USB interface.



As far as I can tell, that's just a break out board.

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30 Jun 2020 11:41 #173187 by rodw
Replied by rodw on topic RS485 For Hypertherms

snowgoer540 wrote:

rodw wrote: I thought Stefan was still using the RS485 converter that came with is USB interface.



As far as I can tell, that's just a break out board.


Yes but the 16C950 UART on the Interface card supports RS485 and RS232
See: www.semiconductorstore.com/pdf/newsite/oxford/ox16c950b.pdf

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30 Jun 2020 11:47 #173188 by snowgoer540
Replied by snowgoer540 on topic RS485 For Hypertherms

rodw wrote: Yes but the 16C950 UART on the Interface card supports RS485 and RS232
See: www.semiconductorstore.com/pdf/newsite/oxford/ox16c950b.pdf


Yea, I actually saw that as well, but the actual card documentation makes no mention of support for it. Supposedly the card I had could do it too (same thing, the chip definitely can) but I wasn't able to get it to work without the converter. I'm sure in my case it's a driver thing and I don't have the hacker skillz to make it work on Linux, plus all the supporting documentation was based around Windows.

One of those times where the time investment to get it to work wasnt worth the ~$20 shipped from amazon to press on. But still, I wish it would have "just worked". Apparently Stefan does have the magic card.
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30 Jun 2020 21:15 #173211 by thefabricator03
Phill,

The more I thought about it the more I liked the Hypertherm mapping diagram so I modified the reference document to show it. I think it looks better - please find attached.
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30 Jun 2020 21:18 - 30 Jun 2020 21:19 #173212 by thefabricator03

rodw wrote:

snowgoer540 wrote:

thefabricator03 wrote: I dont know how it still works.


Magic. Truthfully I still don't understand how you don't need a RS-232 to RS-485 converter either. But, I'm OK chalking it up to Magic.


I thought Stefan was still using the RS485 converter that came with is USB interface.


No I am using the connector from the converter but not the converter. Still cant figure out how it is working. Its just a straight through connector.
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Last edit: 30 Jun 2020 21:19 by thefabricator03.

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30 Jun 2020 21:30 #173214 by snowgoer540
Replied by snowgoer540 on topic RS485 For Hypertherms
Your old diagram really helped me figure mine out...

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