Hello

[GoogleCodeExporter]

I am glad to have found your project. Was looking for a python modbus library 
and yours looks like it will suit me.

I was then thinking about adding this to django when i saw you have the same 
goal.

Over the next few weeks I will get some modbus hardware to work with. I hope 
we will be productive.

Eric Baker

Original issue reported on code.google.com by mechco....@gmail.com on 1 Feb 2010 at 2:05

[GoogleCodeExporter]

Hello Eric,

Thanks for your feedback. I am happy to know that it is useful. Can you give 
more
details about you: Where are you located? Do you use modbus-tk in real world or 
just
as testing tool? What kind of project?

First, I would like to make a simple web-based HMI running on the local 
machine. I've
started something with Bootle a very nice web framework. I hope I can release
something very soon.

Secondly, I would like to include a data-logger, collecting modbus data and 
pushing
it to a django-based web-service. What do you think about this idea? I am 
interested
to know what is your vision?

Please keep me updated about how things are going with the h/w. I will had this 
to
the list of "tested" stuff.

Best

Original comment by luc.jean@gmail.com on 1 Feb 2010 at 6:43

• Changed state: Accepted
• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

Hello again Luc,

I am in Jackson, Wyoming just south of Yellowstone National Park. I work as an
electrician for a mechanical contractor here. We do HVAC (Heating, Ventilation 
and
Air Conditioning) and plumbing.

I do controls for these systems and building automation is getting more 
important for
me now.

Right now I am collecting tools (hardware and software) to assist me in doing 
this.

Dedicated programmable modbus controllers with built in HMI are not very cheap. 
I
think a mini-PC could be built for a little less money and much better
performance/features.

Look at this device: http://www.csimn.com/CSI_pages/AddMeIII-IP.html

Aside from the included I/O ports, a mini PC could do everything this thing can 
do.

If you need I/O, you add some field I/O via modbus (thats what it is for). Here 
are
some cheap ones I found:

http://www.temcocontrols.com/index.php?CategoryID=22

Also Thermostats

http://www.temcocontrols.com/product.php?ProductID=17&CategoryID=7

Now back to the AM-III I linked to first. Here is a "mock-up" browser user 
interface
for it: http://www.csimn.com/DemoWebAM3IPMB/index.html

You can also load custom HTML pages on it as well for your custom HMI.

I think this is a reasonable goal.

Yes, I will be using/testing some real hardware. I will have some i/o modules,
dampers, variable frequency drives, thermostats etc etc. to test with.

Let me know what you think.

Regards

Eric

Original comment by mechco....@gmail.com on 1 Feb 2010 at 10:51

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Hello gents I'm from Italy and I'm working in the automation .
Sorry for my bad English writing.
I would like to try to use modbus-tk to connect a pc to several plc's on Modbus 
TCP/IP connections.
I already have the material for testing and also a Modbus Master/Slave 
Simulator.
I'm pretty new about Phyton and I'm trying to understand it.
Any way do you have a complete reference about the functions can be used or a 
more detailed explanation for a newbe on Phyton.
How many slaves can be managed "at the same time" ?

Regards

Alex

Original comment by achio...@gmail.com on 20 Jul 2010 at 12:57

[GoogleCodeExporter]

Hello Alex,

Please use the mailing list (http://groups.google.fr/group/modbus-tk) for this 
kind of discussion and keep the issues list for bug tracking.

I think that modbus-tk meet your needs. I recommend to look at the exemple 
folder in the modbus-tk installation. That may help. You can also look at the 
wiki pages. After that, use the mailing list to ask questions.

There is no limit on the number of slaves.

Original comment by luc.jean@gmail.com on 20 Jul 2010 at 1:10