Re: Converting serial I/O to ethernet I/O
- From: Bob Gezelter <gezelter@xxxxxxxxx>
- Date: Fri, 16 Nov 2007 05:28:58 -0800 (PST)
On Nov 16, 8:04 am, tadamsmar <tadams...@xxxxxxxxx> wrote:
I maintain a VMS real-time app. that has a serial interfaces to
analyzers. The latest version of the analyzers support network
communications and we want to convert from serial to network.
Any pointers on how to do it? I think it's a matter of making the
right QIO calls, perhaps
just revising or adding alternative QIO calls.
tadamsmar,
It may be as simple as that, or a more extensive re-write. It depends
on the actual interface specifications of the analyzers.
In my career, I have seen both. I have seen devices just change from
serial interfaces to say, a LAT or telnet scheme; and I have seen
devices adopt completely different message formats, standards, and
protocols.
In the abstract, it is not possible to answer this question from the
information in your post. It would require careful reading of the
documentation for both the old analyzers and the new analyzers, and a
review of the source code of the application.
- Bob Gezelter, http://www.rlgsc.com
.
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