Welcome to Control.com, the global online community of automation professionals.
Control.com - Nerds in Control
Member Login
Search
Jump to a Date
Sponsored Communities
Cool stuff
Twitter Feed
Neat Stuff
Visit our shop for nerds in control lifestyle products.
Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
Warp 7 -- It's a law we can live with.
RSS Feed
Use this link to get an RSS feed of the Control.com article flow, for private, non-commercial use only:www.control.com/rss/
To get a personalized feed, become a member at no cost.
English to German (T_Mail):
Curt (über Deutschland)
> scheint es, eine Menge entwicklung Linux geben Steuer,
diean in tha geht
> Teil der Welt.
Das führt zu die Frage... sollte wir versuchen, unsere Liste mehrsprachig zu bilden?
Curt (über Deutschland)
> scheint es, eine Menge entwicklung Linux geben Steuer,
diean in tha geht
> Teil der Welt.
Das führt zu die Frage... sollte wir versuchen, unsere Liste mehrsprachig zu bilden?
New Replies:
By Harald Albrecht on 9 October, 2001 - 1:50 pm -
Jiri Baum wrote: > English to German: [funny translations omitted] Maybe something for...
I would be happy to participate in your project in an area where I can. On the other hand, I would really like to understand the concept more, in more detail and the implications of real time constraints ....
New Replies:
By Mario de Sousa on 9 October, 2001 - 1:44 pm -
Peter Wurmsdobler wrote: > Bottom line: replace PLC paradigm by reasonable control >...
By Peter Wurmsdobler on 9 October, 2001 - 1:29 pm -
Jiri, The general problem for me with PLCs is their classical paradigm: run loops as fast as...
By Peter Wurmsdobler on 9 October, 2001 - 1:10 pm -
Robert, > LXRT is even _hard_ realtime in user space. Just give it a try :-) I have to try it!...
By Robert Schwebel on 9 October, 2001 - 12:44 pm -
On Mon, 1 Oct 2001, Peter Wurmsdobler wrote: > Both RTLinux and RTAI offer something like soft...
By Jiri Baum on 9 October, 2001 - 12:41 pm -
[sched_setscheduler(2)] Peter: > However, this brute force approach does not release the CPU...
By Mario de Sousa on 9 October, 2001 - 12:35 pm -
Peter Wurmsdobler wrote: > Even this solution is still bad as if there is ahother process doing...
By Peter Wurmsdobler on 9 October, 2001 - 12:17 pm -
Jiri, > At present, we haven't; however, soft real-time is easily achieved by > setting the...
By Mario de Sousa on 9 October, 2001 - 12:09 pm -
Peter Wurmsdobler wrote: > Mario, > > > How can we help? > I did not understand...
By Jiri Baum on 9 October, 2001 - 12:08 pm -
Mario: > > How can we help? Peter: > I did not understand correctly the library...
By Peter Wurmsdobler on 9 October, 2001 - 11:41 am -
Mario, > How can we help? I did not understand correctly the library implementation and the...
By Curt Wuollet on 9 October, 2001 - 11:31 am -
Welcome Pete, The more the merrier. Regards cww -- Free Tools! Machine Automation Tools...
By Mario de Sousa on 9 October, 2001 - 11:26 am -
Peter Wurmsdobler wrote: > Even though I am not a user for the moment, nor an active matPLC...
Should we try to make our list multi-lingual?
New Replies:
By Curt Wuollet on 9 October, 2001 - 1:43 pm -
If we can get a polylingual volunteer to do it, sure! If we have to burden the documentors right...
Why would anybody who cares enough to write Open Source code on Linux want to depend on MS proprietary protocols and having a Windows box
in the mix?
in the mix?
as you probably know, I´m trying to implement a
autoconf/automake build environment for Linuxplc...
autoconf/automake build environment for Linuxplc...
looking through the files in the LinuxPLC source tree I noted that very few attention is put to tests...
from the Automation List department...
Re: [MAT-devel] Oven demo graphical interface ready. (Screen Shots)I placed screenshots of the oven_gtk demo windows in my personal homepage...
New Replies:
By Juan Carlos Orozco on 5 October, 2001 - 2:49 pm -
The updated README file of the oven_gtk demo with instructions on how to use it are now in the CVS....
By Juan Carlos Orozco on 28 September, 2001 - 5:10 pm -
OK Jiri, I finaly commited some information on how to use the oven demo, for now I just made the...
I seem to be getting quite a bit of "why not use Modbus" questions out of this discussion. I hope to fully air my concerns about Modbus and why I think it to be totally inadequate for our primary purpose...
New Replies:
By Harvey Babb on 3 October, 2001 - 9:46 am -
snip>Please, tell me where in any of Modicon's publically available documentation I can find the...
www.smbd.org has some guidelines on security issues available under automation, security section in article 2.
I think I have an idea here based on Jiris previous email, so I'll tell you what I have been working on lately and where I see could be a
potential way to extend the LinuxPLC and add RT functionality to it. ...
potential way to extend the LinuxPLC and add RT functionality to it. ...
New Replies:
By Jiri Baum on 28 September, 2001 - 5:42 pm -
> > Curt: > > > One RT task synchs the maps IFF no userland proc is changing...
By Curt Wuollet on 28 September, 2001 - 5:34 pm -
From the RT side you have no conflict, it has exclusive access in it's slot. From the user side you...
By Jiri Baum on 28 September, 2001 - 5:32 pm -
Rufus: > Moreover, you need a guaranteed > upper bound on any block of the RT. Fortunately,...
By Curt Wuollet on 28 September, 2001 - 5:25 pm -
I agree that if we can simply use something that's out there, we should. I do like dealing with...
By Rufus on 28 September, 2001 - 5:21 pm -
I'm with you, Jiri. I don't understand the comment that synchronization is simplified, unless you...
By Jiri Baum on 28 September, 2001 - 5:12 pm -
Curt: > It's not that you don't have sync, it's that it's inherently self > synching if you...
By Curt Wuollet on 28 September, 2001 - 5:01 pm -
Hi Jiri It's not that you don't have sync, it's that it's inherently self synching if you do it...
By Jiri Baum on 27 September, 2001 - 10:35 am -
Curt: > a megabyte of memory, enough for lots of registers, buffers, etc. that > was...
By Jiri Baum on 27 September, 2001 - 10:34 am -
Ken: > I have been working a lot with RTLinux at a project funded by my > employer. Certainly...
By Mario de Sousa on 27 September, 2001 - 9:22 am -
Hi Ken, Thanks for your thoughts! Actually I think the current architecture of the MATplc...
By Curt Wuollet on 27 September, 2001 - 9:20 am -
Hi Ken, Been there, done that, ran it up the flagpole and nobody saluted. The very early work for...
Do you have any more information/experience with this? If we can get userspace hard-RT, that would solve all the problems with partitioning RT and non-RT tasks...
New Replies:
By Robert Schwebel on 28 September, 2001 - 4:06 pm -
Hi Jiri, On Fri, 28 Sep 2001, Jiri Baum wrote: > Do you have any more information/experience...
By Ken E. on 27 September, 2001 - 4:32 pm -
Hello guys, I dismissed the LXRT as being viable based on an early research of it several months...
Curt has been bringing up some interesting points about RT and shared memory. It also goes back to my original proposal. ...
New Replies:
By Curt Wuollet on 28 September, 2001 - 3:42 pm -
"Ken Emmons, Jr." wrote: > Curt has been bringing up some interesting points about RT...
Those of us in Melbourne, Australia, might be interested in this talk... (LUV is the Linux Users of [the state] Victoria; membership is free, no-one will mind if you just turn up.) ...
New Replies:
By Jiri Baum on 26 September, 2001 - 3:12 pm -
Jiri: > > - User-space tasks can't inherit hard-RT priority, so they cannot > > ...
By Robert Schwebel on 26 September, 2001 - 2:02 pm -
On Wed, 26 Sep 2001, Jiri Baum wrote: > - User-space tasks can't inherit hard-RT priority, so...
By Jiri Baum on 26 September, 2001 - 9:39 am -
I wrote: > Those of us in Melbourne, Australia, might be interested in this talk... ... > The...
By Jiri Baum on 26 September, 2001 - 9:38 am -
A few observations as far as relevance to MAT is concerned: - User-space tasks can't inherit...
Last week I commited the plcshutdown module, which will shutdown the plc when a configurable (in the config file) plc point is set...
New Replies:
By Peter Hopfgartner on 26 September, 2001 - 2:54 pm -
> Once we get this working once again, there is very little in the way of > making a first...
I am writing this message to inform of the current work and plans for the hmi_gtk module.
New Replies:
By Mario de Sousa on 26 September, 2001 - 10:04 am -
Hi Juan, I too believe the above approach is the correct way to go. It wouldn't make much sense...
Hey Guys! I'm looking for some linux based software for an OPTO B1 brainboard.
New Replies:
By Greg Goodman on 25 September, 2001 - 12:27 pm -
> Great, but I still need some kind of software to run on linx that will push the commands...
Is anyone working on using Linux PLC with the IEC 870-5 protocol?
New Replies:
By N.Sreenivasa Reddy on 25 September, 2001 - 10:00 am -
How can I obtain a copy of your IEC 60870-5 documentation. regards Srinivasa N Reddy ...
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2009 Nerds in Control, LLC. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!