[Interest] Relevant industrial buses

Tue Jul 7 11:03:35 CEST 2015

Am Tue, 7 Jul 2015 09:05:05 +0200
schrieb Elvis Stansvik <elvstone at gmail.com>:

> 2015-07-07 8:35 GMT+02:00 alexander golks <alex at golks.de>:
> 
> > hi,
> >
> > i've no deep knowledge about buses at all and if some of these would even
> > fit into the qserialbus module, but what about some of the buses and
> > protocols for home automation?
> > it would be great to have simple access to diy installations over standard
> > buses/protocols using qt, or even to implement your own driver for this.
> >
> 
> While I agree that this would be really cool, and that it seems this new
> module would be the right place for it, I would suggest the Qt Company
> focus on common industrial buses first. Home automation is of course not
> something new by now, but industrial automation is a much larger market, so
> I would think it would be a good idea to cater to their needs first. Both
> from a business perspective, and from a perspective of gaining involvement
> in Qt development.
> 
> Not saying home automation protocols shouldn't be added, it's just a
> friendly tip to focus on the larger market initially :)
> 
> Elvis
> 

well, beside dyi home automation, there is a business perspective to this, too, but i can't estimate on this.
cool is one thing, but think of professional companies wanting to create home automation utilities and apps using qt, interfacing their product or even all available via different backends ;)

in the end, the extensibility is what matters, not the already supported modules at begin of project, so i agree with you to concentrate on industrial backends, first.

> >
> > alex
> >
> > Am Mon, 6 Jul 2015 18:31:52 +0000
> > schrieb Turunen Tuukka <tuukka.turunen at theqtcompany.com>:
> >
> > >
> > > Hi Mike et al,
> > >
> > >
> > > Modbus is one that we have also gotten some requests earlier, so it
> > might be a good next step.
> > >
> > >
> > > We are also keen to understand if there are some other / new buses that
> > are seen relevant in the future for industry applications.
> > >
> > >
> > > Qt SerialPort has been discussed to later on be re-created as plugin for
> > Qt SerialBus. But before that we would like to have support for new buses
> > in the new module.
> > >
> > >
> > > Yours,
> > >
> > >
> > >         Tuukka
> > >
> > >
> > > ________________________________
> > > Lähettäjä: Michael R Nelson <mnelson at sutron.com>
> > > Lähetetty: 6. heinäkuuta 2015 15:35
> > > Vastaanottaja: Turunen Tuukka; interest at qt-project.org Interest
> > > Aihe: RE: [Interest] Relevant industrial buses
> > >
> > >
> > > We would likely take advantage of Modbus and DNP3, if these became
> > available.
> > >
> > >
> > >
> > > Mike
> > >
> > >
> > >
> > > From: interest-bounces+mnelson=sutron.com at qt-project.org [mailto:
> > interest-bounces+mnelson=sutron.com at qt-project.org] On Behalf Of Elvis
> > Stansvik
> > > Sent: Friday, July 03, 2015 2:36 PM
> > > To: Turunen Tuukka; interest at qt-project.org Interest
> > > Subject: Re: [Interest] Relevant industrial buses
> > >
> > >
> > >
> > > 2015-07-03 12:13 GMT+02:00 Turunen Tuukka <
> > tuukka.turunen at theqtcompany.com<mailto:tuukka.turunen at theqtcompany.com>>:
> > >
> > >
> > >
> > > Hi,
> > >
> > >
> > >
> > > As you are probably aware, we are developing a new Qt SerialBus module.
> > Target is to have a technology preview in Qt 5.6 with support to CANBus.
> > You can look how it is shaping up at:
> > http://code.qt.io/cgit/qt/qtserialbus.git/
> > >
> > >
> > >
> > > I wasn't aware. Very interesting.
> > >
> > >
> > >
> > > The architecture of the new Qt SerialBus is modular, and we would like
> > to add support to new buses relevant for Qt based systems. One area that Qt
> > is widely used is industrial automation, and therefore we are interested in
> > knowing which are the buses you would like to have supported with this
> > module. We are of course also very much open to contributions to get more
> > buses supported.
> > >
> > >
> > >
> > > I wouldn't say I work in industrial automation, but we are building a
> > machine for mineral analysis. We're not using Qt for the machine control
> > parts in this project though (but we are using PyQt for various GUIs, but
> > that's for remote control, not close to the hardware).
> > >
> > >
> > >
> > > Modbus comes to mind as a protocol you might want to support, in its
> > various incarnations (TCP, UDP, serial, ...). It's a very widespread
> > protocol still, despite its age.
> > >
> > >
> > >
> > > I don't know what scope you have in mind for this module. I looked
> > briefly at the code, and the interfaces seems quite general
> > (read/write/configuration parameters).
> > >
> > >
> > >
> > > Other protocols we use at work are various hardware vendor specific
> > protocols over RS-422 and RS-485, so had we used Qt we would have used
> > QtSerialPort. Modbus was the only thing that came to mind right now.
> > Currently we use pymodbus, which is very well-written, if you need
> > inspiration.
> > >
> > >
> > >
> > > Qt for industrial automation is an interesting prospect though.
> > >
> > >
> > >
> > > Best regards,
> > >
> > > Elvis Stansvik
> > >
> > >
> > >
> > >
> > >
> > > Yours,
> > >
> > >
> > >
> > > Tuukka Turunen
> > >
> > > Director, R&D
> > >
> > >
> > >
> > > The Qt Company
> > >
> > > Piippukatu 11, 40100 Jyväskylä, Finland
> > >
> > > Email: tuukka.turunen at theqtcompany.com<mailto:
> > tuukka.turunen at theqtcompany.com> | Mobile: + 358 40 7655 800
> > >
> > > www.qt.io<http://www.qt.io> |Qt Blog: http://blog.qt.io | Twitter:
> > @QtbyDigia, @Qtproject | Facebook: www.facebook.com/qt<
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> > >
> > >
> > >
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> > >
> > >
> >
> >
> > --
> > /*
> >  *Q:  How many members of the U.S.S. Enterprise does it take to change a
> >  *  light bulb?
> >  *A:  Seven.  Scotty has to report to Captain Kirk that the light bulb in
> >  *  the Engineering Section is getting dim, at which point Kirk will send
> >  *  Bones to pronounce the bulb dead (although he'll immediately claim
> >  *  that he's a doctor, not an electrician).  Scotty, after checking
> >  *  around, realizes that they have no more new light bulbs, and complains
> >  *  that he "canna" see in the dark.  Kirk will make an emergency stop at
> >  *  the next uncharted planet, Alpha Regula IV, to procure a light bulb
> >  *  from the natives, who, are friendly, but seem to be hiding something.
> >  *  Kirk, Spock, Bones, Yeoman Rand and two red shirt security officers
> >  *  beam down to the planet, where the two security officers are promply
> >  *  killed by the natives, and the rest of the landing party is captured.
> >  *  As something begins to develop between the Captain and Yeoman Rand,
> >  *  Scotty, back in orbit, is attacked by a Klingon destroyer and must
> >  *  warp out of orbit.  Although badly outgunned, he cripples the Klingon
> >  *  and races back to the planet in order to rescue Kirk et. al. who have
> >  *  just saved the natives' from an awful fate and, as a reward, been
> >  *  given all light bulbs they can carry.  The new bulb is then inserted
> >  *  and the Enterprise continues on its five year mission.
> >  */
> >
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