Hello about modbus-tk HOT 5 CLOSED

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

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

[deleted comment]

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

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.