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- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
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As the North American Director of PLCopen I would like to receive as many thoughts as possible about what ideal PLC controller software would be. I plan to use this information to propose new PLCopen standards to improve IEC 61131.
New Replies:
By Jeremy Pollard on 10 April, 2007 - 11:52 am -
Well done Michael. We will add to the list... just having my Wheaties. :)
Cheers from: Jeremy...
By Michael Griffin on 10 April, 2007 - 1:09 am -
In reply to Curt Wuollet: It would be interesting to see if we can compile a list of automation...
By Michael Griffin on 9 April, 2007 - 10:57 pm -
In reply to Jeremy Pollard: I think we need to keep in mind what we are talking about here. We are...
By Michael Griffin on 9 April, 2007 - 10:53 pm -
In reply to Ken Stewart: I will repeat again, "security by obscurity" doesn't work. You...
By Jeremy Pollard on 9 April, 2007 - 10:40 pm -
Ken - you raise an interesting point... I have wondered if the IEC-61131 'standard' should be a...
By Jeremy Pollard on 9 April, 2007 - 12:16 pm -
Great dialog guys. Open is as Open does...
Cheers from: Jeremy Pollard, CET The Caring...
By Ken Stewart on 9 April, 2007 - 11:48 am -
Michael,
Here is my concern: where is the audit log? If someone breaks into a computer system...
By Jeremy Pollard on 8 April, 2007 - 8:14 pm -
Michael..
I would suggest that the world of automation, being a very small cog in a big wheel, has...
By Michael Griffin on 8 April, 2007 - 8:12 pm -
In reply to Ken Stewart: Your comment is far off track for two reasons. One reason is that we are...
By Curt Wuollet on 8 April, 2007 - 8:10 pm -
Hogwash!
The worst security problems in the world are on closed systems. High security systems are...
By Curt Wuollet on 8 April, 2007 - 1:49 pm -
The only thing PLC Open needs to address our needs is obvious and totally lacking. That is: An...
By Ken Stewart on 7 April, 2007 - 9:22 pm -
Hi Michael,
I understand your plea for openness. One of the underlying assumptions in your...
By Michael Griffin on 7 April, 2007 - 2:56 pm -
In reply to Jeremy Pollard (on the subject of openness in PLCopen):
It makes for an interesting...
By Jeremy Pollard on 7 April, 2007 - 1:47 am -
Hi Michael. One reply in six months tells the story of the lack of passion, interest, and 'a who...
By ww on 24 March, 2007 - 1:34 pm -
First off, i agree with most post to this already, As I am a programmer myself for multiple...
By William Sturm on 24 March, 2007 - 1:32 pm -
Just a thought, the PC industry has had standardized hardware for some time and it hasn't affected...
By Jiri Baum on 24 March, 2007 - 1:30 pm -
Hello,
I think this is the key for standards themselves, too - you need good will and effort if...
By Michael Griffin on 24 March, 2007 - 1:26 pm -
In reply to Jeremy Pollard: I agree with your point that an open committee is unlikely to provide...
By Marc Sinclair on 24 March, 2007 - 10:12 am -
Hi,
Is that the sort of work you want anyway?
When I first started programming PLCs we used...
By Joe Jansen on 23 March, 2007 - 10:55 pm -
I agree. My initial idea was to require a standard file format. XML preferred, but the standard...
By Jeremy Pollard on 21 March, 2007 - 10:21 pm -
Michael - you make some good points. As the former PLCopen managing director, I understand what...
By Nik Kinze on 18 March, 2007 - 1:56 pm -
All of this has I am sure a very noble intent. However, companies are in business to make money. An...
By Michael Griffin on 18 March, 2007 - 1:55 pm -
In reply to Pankaj Gupta and Joe Jansen: PLCopen already *has* an XML format. Have a look at the...
By Michael Griffin on 17 March, 2007 - 5:24 pm -
In reply to Bill Lydon, PLCopen North America: The classic book on IEC 61131-3 is "Programming...
By Pankaj Gupta on 17 March, 2007 - 1:21 am -
I think moving to XML for PLC programming would be a great move in control industry. This will...
By Bill Lydon, PLCopen North America on 17 March, 2007 - 1:09 am -
Michael,
This is exactly the kind of input I want to hear.
I would also like thoughts, ideas,...
By Bill Lydon, PLCopen North America on 17 March, 2007 - 1:09 am -
Joe,
Good ideas, keep them coming.
Thank You,
Bill Lydon
414-427-5853
...
By Vladimir Zyubin on 17 March, 2007 - 12:21 am -
Agreed. You point out fundamental problems of the standard that make it very problematic for...
By Dennis Patterson on 16 March, 2007 - 11:10 pm -
I've been programming PLCs for 25 years now. I'm waiting for the day when a PLC is a generic of...
By Michael Griffin on 15 March, 2007 - 1:44 am -
I believe that there is presently a lack of trust in PLCOpen and a general cynicism about...
By Joe Jansen on 15 March, 2007 - 12:30 am -
Bill,
Thank you for coming to the users to get this info. It is nice to know that someone wants...
I have built hardware and software for sensing and controlling the motors in a robot and do some specific functions. Any suggestions and techniques to build new in assembly language are welcomed.
I want to learn Binary code...
New Replies:
By Myrissa Weeks on 5 April, 2007 - 10:57 pm -
You make words by combining the codes for letters. First you have the code that tells whether the...
need help on the IEC 62056-21 protocol using EMH meter ITZ and DMZ...
New Replies:
By Anonymous on 27 March, 2007 - 10:06 pm -
Hi,
I'm studying this standard, but I can't figure how is the message format. Is it ASCII or...
By sever on 22 March, 2007 - 12:55 am -
Hi, all.
Help please. I'm from Russia. I work with a gear under protocol IEC 62056-21. The gear...
By Anonymous on 17 March, 2007 - 12:30 am -
i'm starting working on IEC 62056-21 standard, but i don't find much information.
If anyone has...
Vax Station in Provox DCS
New Replies:
By Bob Peterson on 25 March, 2007 - 11:43 am -
The OS is called VMS. It uses a completely different set of commands. Type in help at the command...
I am working actually with protocol modbus and microcontroller AT89c52.
New Replies:
By R.Jayapal on 25 March, 2007 - 11:08 am -
Mr Arshad may send me the assembler source code for modbus for use in my hobby project.
Thanks.
...
i'm doing a project in VB to decode the data that is read from comm port... actually all the data that read is from the comm port are string characters that we can't understand...
New Replies:
By Ali on 24 March, 2007 - 12:43 am -
I had the same problem. I realized that my device was actually idle Low rather than high, so I just...
I have called an exe generated from matlab using shell command from vb6. the black console appears for a moment. how can i see the output?
New Replies:
By Anil on 14 March, 2007 - 11:52 pm -
Hi This is Anil,
I want to design a program in VB.NET in such a way that I will enter my input...
i have to connect the plc (its for a tablet coating machine) to the computer using RS232 port.
New Replies:
By Anonymous on 13 March, 2007 - 11:49 pm -
Connect OPC/DDE server to configure SQL database....
I need to find a resource to interface php with modbus/TCP
New Replies:
By Roy Yin on 13 March, 2007 - 10:40 pm -
Modserver is a service program, just like OPC server. To control a RTU, C, PHP, or any script...
By Michael Griffin on 11 March, 2007 - 6:01 pm -
In reply to Roy Yin: I had a look at your web site as I was curious, and noticed your mention of...
By Roy Yin on 10 March, 2007 - 3:56 pm -
I have a program called Modserver on Linux (Fedora, Suse). It is very reliable.
The whole...
from the communication department...
How can i read text data from com port and store it as .mdb format in visual Basic 6reading text from com port and store it as .mdb format
New Replies:
By Anonymous on 10 March, 2007 - 12:39 pm -
i need to capture the PLC data using the RS232 serial port and connect it to the computer. the data...
Does anyone know a code of optimization which is Simulated Annealing and Genetic Algorithm?
New Replies:
By Anonymous on 6 March, 2007 - 11:40 pm -
See:
http://www.nrbook.com/a/bookcpdf.php
Look for section 10.9
Not C++ but C....
i can't run the DOS commands in VB programs. Please help me.
New Replies:
By Anonymous on 6 March, 2007 - 11:09 pm -
Thank you for this example, it helped out tremendously....
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