Re: [ts-7000] Re: packaged systems (was new GNU openhardware ep9302 based SBC)

["Don W. Carr" <>]

Ok, really, the basic protocol code is really C code thought compiled
with g++, so I will be working on on making it strictly C, then adding
a C++ wrapper on top that is optional. Maybe by the time your are freed
up from the other project, I will have the C version ready. I really
would appreciate a user that forced me to clean up the code a little
and give me some feed back. Do you want both client and server, or do
you just need the client? Will you use TCP/IP, or serial?

Don.

On 5/9/06, Yan Seiner <> wrote:

--- In "Don W. Carr" <> wrote:
>

> My code for modbus is C++ based right now, but I am thinking of
moving the
> basic protocol code to C so I can offer both C and C++ interfaces. I
do not
> support all of the opcodes, only the most common, but of course the
others
> could be added one at a time. I have both client and server code,
but have
> only used the server code for testing the client. The client code was
> running 24 hours a day polling remote counters over TCP/IP once per
second,
> before I put an RTU to save network traffic, and only send an event
when a
> train crossing was detected. Are you wanting Modbus serial or Modbus
TCP/IP?
> Finally, I only have Modbus RTU, but would be fairly simple to add
Modbus
> ascii.
>
> Well, if you want to be an early tester, I could send the modbus code to
> you. I would need to as a minimum separate it all out with it's own
> makefile, but I am sure your input would help me. I have it creating a
> shared object file so it can be installed as a library on the target
> computer. You just need to install the .so file and run ldconfig.
>
> To give you an idea of configuring my control engine, here is the text
> config file for Analog Inputs:
>
> AI0|Temp|Deg C|1|1|0|0.0|10.0|0.0|10.0|1|-10000.0|0|0|0|0|0|0|0|0|0|
> AI1|Input
Speed|RPM|1|1|1|0.0|4000.0|0.0|10.0|1|-10000.0|0|0|0|0|0|0|0|0|0|
> #FLM1|Fluormetro 0-1V|%|1|1|0|0.0|100.0|0.0|1.0|1|-
> 10000.0|0|0|0|0|0|0|0|0|0|
> #FLM2|Fluormetro 0-10V|%|1|1|1|0.0|100.0|0.0|10.0|1|-
> 10000.0|0|0|0|0|0|0|0|0|0|
> #    Tag
> #    Description
> #    Engineering Units Label
> #    Driver Number
> #    Card
> #    Channel
> #    Engineering Units Low
> #    Engineering Units High
> #    Raw Value Low
> #    Raw Value High
> #    Decimal Places
> #    Zero Cutoff
> #    Alarm Low
> #    Caution Low
> #    Caution High
> #    Alarm High
> #    Alarm Deadband
> #    Alarm Low Enable
> #    Caution Low Enable
>
> Don.
>

Don:

I would be interested, but my schedule has been reOk, really, the basic protocol code is really C code, so I will be working on on making it strictly C, then adding a C++ wrapper on top that is optional. Maybe by the time your are freed up from the other project, I will have the C version ready. I really would appreciate a user that forced me to clean up the code a little and give me some feed back.

Don.arranged by some
problems with our prototype machine....  So I can't say I'll have a
chance to look at it until we resolve our other issues...

In any case, I am trying to avoid C++ since I am really not very good
at it...  So I would prefer the C version.

Thanks,

--Yan

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-- 
Dr. Don W. Carr
J. G. Montenegro 2258
Guadalajara, Mexico
+52-333-630-0704
+52-333-836-4500 ext 2930

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