Re: USB or Ethernet for controller interface?
- From: "Tom Lucas" <news@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 12 Apr 2007 09:25:53 +0100
"Gary" <micro-rdgroup@xxxxxxxxxxxxx> wrote in message
news:1176331316.238642.8610@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Working on 32-bit microcontroller design that needs to interface to
industrial PC (mini-ITX, PC104, etc.) over short 3-meter cable. It is
an industrial application and the design will be DIN rail mounted
along side PLC's, relays, etc.
Any thoughts as to whether USB or Ethernet would be best?
Cost is a concern. Since this application's cable length requirement
is short, does this make USB the obvious winner?
Or, is Ethernet more robust in an industrial environment?
Sorry if this has been debated in the past. I did a search, but
didn't find much except for posts made in 2001. Let me know if there
are articles that address this.
Thank you!
What sort of data rates? RS-232 is the cheapest solustion or convert to
RS-422 to give a bit more robustness but 232 should be fine for 3
meters.
.
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