Thread: [Gambas-user] gambase and modbus

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Hi folks,

Does anybody have experience (and code) of ModBus driven by Gambas?

JY
-- 
< Overfiend> well, excellent.  I get to tear someone a new asshole.
		-- in #debian-devel

Jean-Yves F. Barbier wrote:
> Hi folks,
>
> Does anybody have experience (and code) of ModBus driven by Gambas?
>
> JY
>   
ASCII or RTU

Mike

I did it in C# and VB.Net, Modbus protocol is pretty simple, you can
easy find protocol definition on the web, after what the transport,
serial or Ethernet is "standard", so basically, if gambas support
serial port writing, you just need to write it in the serial port
component

2009/10/2 Mike <mik...@we...>:
> Jean-Yves F. Barbier wrote:
>> Hi folks,
>>
>> Does anybody have experience (and code) of ModBus driven by Gambas?
>>
>> JY
>>
> ASCII or RTU
>
> Mike
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry&reg; Developer Conference in SF, CA
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> developing skills, take BlackBerry mobile applications to market and stay
> ahead of the curve. Join us from November 9&#45;12, 2009. Register now&#33;
> http://p.sf.net/sfu/devconf
> _______________________________________________
> Gambas-user mailing list
> Gam...@li...
> https://lists.sourceforge.net/lists/listinfo/gambas-user
>

-- 
Cordially.

Small Eric Quotations of the days:
---------------------------------------------------------------------------
I have no special talents. I am only passionately curious

find some of my first tool here :
http://www.plcs.net/downloads/index.php?direction=0&order=&directory=Misc
http://www.plcs.net/downloads/index.php?&direction=0&order=&directory=Modicon

2009/10/2 Petit Eric <sur...@gm...>:
> I did it in C# and VB.Net, Modbus protocol is pretty simple, you can
> easy find protocol definition on the web, after what the transport,
> serial or Ethernet is "standard", so basically, if gambas support
> serial port writing, you just need to write it in the serial port
> component
>
> 2009/10/2 Mike <mik...@we...>:
>> Jean-Yves F. Barbier wrote:
>>> Hi folks,
>>>
>>> Does anybody have experience (and code) of ModBus driven by Gambas?
>>>
>>> JY
>>>
>> ASCII or RTU
>>
>> Mike
>>
>> ------------------------------------------------------------------------------
>> Come build with us! The BlackBerry&reg; Developer Conference in SF, CA
>> is the only developer event you need to attend this year. Jumpstart your
>> developing skills, take BlackBerry mobile applications to market and stay
>> ahead of the curve. Join us from November 9&#45;12, 2009. Register now&#33;
>> http://p.sf.net/sfu/devconf
>> _______________________________________________
>> Gambas-user mailing list
>> Gam...@li...
>> https://lists.sourceforge.net/lists/listinfo/gambas-user
>>
>
>
>
> --
> Cordially.
>
> Small Eric Quotations of the days:
> ---------------------------------------------------------------------------
> I have no special talents. I am only passionately curious
>

-- 
Cordially.

Small Eric Quotations of the days:
---------------------------------------------------------------------------
I have no special talents. I am only passionately curious
Sent from Bordeaux, France

Petit Eric a écrit :
> find some of my first tool here :
> http://www.plcs.net/downloads/index.php?direction=0&order=&directory=Misc
> http://www.plcs.net/downloads/index.php?&direction=0&order=&directory=Modicon

Ok thanks, but there not much.  Anyway, I think I found what I need with
OpenScada.

-- 
Acid absorbs 47 times its own weight in excess Reality.

Jean-Yves F. Barbier wrote:
> Petit Eric a écrit :
>   
>> find some of my first tool here :
>> http://www.plcs.net/downloads/index.php?direction=0&order=&directory=Misc
>> http://www.plcs.net/downloads/index.php?&direction=0&order=&directory=Modicon
>>     
>
> Ok thanks, but there not much.  Anyway, I think I found what I need with
> OpenScada.
>
>   
Depends on what you use it for, it's not free for commercial purposes.

You have propably seen
http://copyleft.free.fr/wordpress/index.php/libmodbus/

Werner

Werner a écrit :
...
> Depends on what you use it for, it's not free for commercial purposes.
> 
> You have propably seen
> http://copyleft.free.fr/wordpress/index.php/libmodbus/

Thanks Werner, this look interesting.

But AFAIK, GPLv3 & LGPLv3 don't forbid commercial use as far as you provide
a meaning to get all sources to the client (for short, it's better to supply
compiled AND source:) and retain the copyleft and credits to original creators.

JY
-- 
This fortune intentionally left blank.

Jean-Yves F. Barbier ha scritto:
> Werner a écrit :
> ...
>   
>> Depends on what you use it for, it's not free for commercial purposes.
>>
>> You have propably seen
>> http://copyleft.free.fr/wordpress/index.php/libmodbus/
>>     
>
> Thanks Werner, this look interesting.
>
> But AFAIK, GPLv3 & LGPLv3 don't forbid commercial use as far as you provide
> a meaning to get all sources to the client (for short, it's better to supply
> compiled AND source:) and retain the copyleft and credits to original creators.
>
> JY
>   
I wrote in C, some time ago, an embedded application using modbus on RS-422.
It is not a difficult matter, at least the part I was interested in - my 
device acted as a server, and a MMI (a touch screen LCD panel) was 
attached to it.
If you are interested in, I can send some C source code and perhaps the 
official documentation I used to write it (available for free in the 
Internet). I don't remember if my implementation was "full" or had only 
the relevant part, but it was simple and short enough to be translated 
easily to gambas; there was only the CRC-32 (or whatever checksum) which 
was a little CPU intensive, but I suppose an i386 computer has far more 
power than a poor embedded microcontroller...
Unfortunately this material is in the computers at work, I have not it 
here at home, but the next monday I can fetch them.

Regards,

-- 
Doriano Blengino

"Listen twice before you speak.
This is why we have two ears, but only one mouth."

http://en.wikipedia.org/wiki/Modbus
http://fr.wikipedia.org/wiki/Modbus
http://www.modbus.org/
http://www.modbus.org/tech.php
http://www.modbus.org/docs/Modbus_over_serial_line_V1_02.pdf
http://www.modbus.org/docs/Modbus_Application_Protocol_V1_1b.pdf
http://www.modbus.org/docs/PI_MBUS_300.pdf
http://www.modbus.org/docs/Modbus_Messaging_Implementation_Guide_V1_0b.pdf
http://www.modbus.org/docs/Object_Messaging_Protocol_ExtensionsVers1.1.doc

That's all pdf you need :-)

2009/10/3 Doriano Blengino <dor...@fa...>:
> Jean-Yves F. Barbier ha scritto:
>> Werner a écrit :
>> ...
>>
>>> Depends on what you use it for, it's not free for commercial purposes.
>>>
>>> You have propably seen
>>> http://copyleft.free.fr/wordpress/index.php/libmodbus/
>>>
>>
>> Thanks Werner, this look interesting.
>>
>> But AFAIK, GPLv3 & LGPLv3 don't forbid commercial use as far as you provide
>> a meaning to get all sources to the client (for short, it's better to supply
>> compiled AND source:) and retain the copyleft and credits to original creators.
>>
>> JY
>>
> I wrote in C, some time ago, an embedded application using modbus on RS-422.
> It is not a difficult matter, at least the part I was interested in - my
> device acted as a server, and a MMI (a touch screen LCD panel) was
> attached to it.
> If you are interested in, I can send some C source code and perhaps the
> official documentation I used to write it (available for free in the
> Internet). I don't remember if my implementation was "full" or had only
> the relevant part, but it was simple and short enough to be translated
> easily to gambas; there was only the CRC-32 (or whatever checksum) which
> was a little CPU intensive, but I suppose an i386 computer has far more
> power than a poor embedded microcontroller...
> Unfortunately this material is in the computers at work, I have not it
> here at home, but the next monday I can fetch them.
>
> Regards,
>
> --
> Doriano Blengino
>
> "Listen twice before you speak.
> This is why we have two ears, but only one mouth."
>
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry&reg; Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay
> ahead of the curve. Join us from November 9&#45;12, 2009. Register now&#33;
> http://p.sf.net/sfu/devconf
> _______________________________________________
> Gambas-user mailing list
> Gam...@li...
> https://lists.sourceforge.net/lists/listinfo/gambas-user
>

-- 
Cordially.

Small Eric Quotations of the days:
---------------------------------------------------------------------------
I have no special talents. I am only passionately curious

Doriano Blengino a écrit :
...
> I wrote in C, some time ago, an embedded application using modbus on RS-422.
> It is not a difficult matter, at least the part I was interested in - my 
> device acted as a server, and a MMI (a touch screen LCD panel) was 
> attached to it.

Oops, my fault, I forgot to tell precisions:
* It is in fact ModBus TCP,
* I'll use it for a HA cluster that'll retrieve info from some concentrators
  (900 sensors dispatched on 4 concentrators)

> If you are interested in, I can send some C source code and perhaps the 
> official documentation I used to write it (available for free in the 
> Internet). I don't remember if my implementation was "full" or had only 
> the relevant part, but it was simple and short enough to be translated 
> easily to gambas; there was only the CRC-32 (or whatever checksum) which 
> was a little CPU intensive, but I suppose an i386 computer has far more 
> power than a poor embedded microcontroller...

Thanks Doriano, but I think I've found what I need: 
I already retrieve docs from modbus.org, and find OpenSCADA (written in C++)
that seems to be ok to do the trick.
I only need to make some tests, and asked the hardware installer to try to
get a simulator from his supplier.

JY
-- 
You will think of something funnier than this to add to the fortunes.

Mike a écrit :
> Jean-Yves F. Barbier wrote:
>> Hi folks,
>>
>> Does anybody have experience (and code) of ModBus driven by Gambas?
>>
>> JY
>>   
> ASCII or RTU

either

-- 
Eat shit -- billions of flies can't be wrong.

Jean-Yves F. Barbier wrote:
> Mike a écrit :
>   
>> Jean-Yves F. Barbier wrote:
>>     
>>> Hi folks,
>>>
>>> Does anybody have experience (and code) of ModBus driven by Gambas?
>>>
>>> JY
>>>   
>>>       
>> ASCII or RTU
>>     
>
> either
>
>   
I will have a look at some code for RTU, TCP, RS232 I used in .net and 
see if it can be adapted to Gambas. It will take me a while to do this.

Mike