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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?
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Is there an open-source PLC? PuffinPLC.org seems to have disappeared.
New Replies:
By M Griffin on 15 September, 2009 - 5:34 pm -
In reply to pvbrowser: You asked: "The result will be converted to C by a generator and be...
In reply to all the responses of my post above.
###############################################
...
By curt wuollet on 14 September, 2009 - 2:22 pm -
Hi PV
> If you use a full blown PC for automation, is a PLC software really needed???
>
...
By M Griffin on 14 September, 2009 - 1:07 pm -
In reply to pvbrowser: What a soft logic system does is provide a ready made framework for an...
By Bill Code on 14 September, 2009 - 12:53 pm -
From a technical perspective, the structure of the program you have outlined will work. And, I...
By William Sturm on 14 September, 2009 - 12:34 pm -
There are two main issues with using a standard PC language like C or Basic for machine control....
If you use a full blown PC for automation, is a PLC software really needed???
Of course you need...
By M Griffin on 13 September, 2009 - 5:51 pm -
In reply to William Sturm:
With this sort of software, you probably don't want a large team....
By curt wuollet on 13 September, 2009 - 11:16 am -
That certainly is one model, but it depends, I think, somewhat on the scope of the project. Smaller...
By M Griffin on 12 September, 2009 - 8:51 pm -
If anyone wants an idea of the size of the MAT project, this is what I get when I run the source...
By William Sturm on 12 September, 2009 - 6:24 pm -
IMHO, most successful open source projects start with one person (or maybe a close knit group)...
By curt wuollet on 12 September, 2009 - 12:54 pm -
Thanks, Michael
Even I didn't know that :^)
A couple of points that need clarification.
...
By M Griffin on 12 September, 2009 - 2:22 am -
Actually, now that I think of it you probably want to look at this too:...
By curt wuollet on 11 September, 2009 - 8:27 pm -
You can tak a look at mat.sf.net. It appears our developers have moved on.
Regards
cww...
By M Griffin on 11 September, 2009 - 7:42 pm -
I have one called MBLogic.
Download site: "http://sourceforge.net/projects/mblogic/"
...
Looking for information on pinout for UM 1.5 cable for the PS4 223 PLC CPU from Möeller
Analog signal splitter with -1/+1 mA input/output range?
BOOTP required at each power up for device IP address?
New Replies:
By James Ingraham on 15 September, 2009 - 11:09 am -
1) Use the bootp server software provided by Rockwell.
2) After assigning an IP address, right...
Illegal response size error message on ABB PLC
New Replies:
By Patrick Lansdorf on 15 September, 2009 - 7:32 am -
Hi there,
Are you sure that the exception, 04, is Illegal Response Length. The modbus spec. says...
Controllogix processor is loosing a program on its own.
New Replies:
I am having similar problems with our AB Make PLC5/40 (Ethernet) Processor Modules. Exactly similar...
By bob peterson on 14 September, 2009 - 3:01 pm -
Your best bet is to get in touch with Rockwell tech support, or search the knowledge base there....
By Ken Roach on 14 September, 2009 - 1:14 pm -
I agree; the first thing to rule out is the 2007 "Atmel 64" issue, in which a bad batch...
Is the processor faulting? If so, can you go online with the processor? Or as soon as you try to go...
By David Ferguson on 14 September, 2009 - 7:44 am -
There is a known issue with I think "Admul" (spelling) chip processors. Go to...
I need to control a FC51 Danfoss VFD with LS PLC.
I need to start , stop & jog the drives.
I need to start , stop & jog the drives.
New Replies:
By Derik on 15 September, 2009 - 12:23 am -
Dear Mr.Bruce
I have already gone through the manual & can't just get it right
...
The answer to your questions will take a bit more space than available on this forum. I recommend...
By Derik on 14 September, 2009 - 1:32 pm -
I , an application engineer from LS Automation & Danfoss Engineer, tried to establish the...
Dear Mr. Bruce,
Thank you very much. I will try these setting once I am back in office tomorrow...
PLCS Project required
New Replies:
By P.KUMAR on 14 September, 2009 - 9:29 am -
Nice to reply thru mail engr,
First of all I have to make clear one thing that PLC is control...
How do you convert an integer format to real format in the S7 300 CPU's?
New Replies:
By david mertens on 14 September, 2009 - 3:14 am -
I think you are looking for the SCALE function. This function converts the input of an analog input...
By Jan Steen Nielsen, Denmark on 11 September, 2009 - 2:05 pm -
You may also use S7 standard function-blocks:
"I_DI" followed by "DI_R"
To...
Step 5 memory inadequate - Cannot Transfer File
New Replies:
Compressing memory is a menu driven function you will find it on the GUI. I am not sure which PG...
By M Griffin on 13 September, 2009 - 11:06 pm -
Compress is not the same thing as reset. You use the programming software to do a compress. When...
I'm not try yet. OK,I will try first to reset the memory. Actually the PLC have 2 reset. reset and...
By M Griffin on 13 September, 2009 - 2:45 am -
Did you try compressing the memory in the PLC first?...
You need to try first compressing the memory or resetting the memory. Usually when a PB or FB is...
Problem with receive data form PLC to the buffer using C# or VB language.
XBTGT2110 and a TWDLCAA24DRF CPU that does not want to communicate
New Replies:
> The two most common causes for this are the use of a incorrect cable or the serial port...
Searching for Engineering checklists, etc...
Setting PG/PC interface Manually
New Replies:
Thank you for your help. I will try it...
Licensed-FREQ Ethernet Radio for USA SCADA application.
New Replies:
By John D Quandt on 11 September, 2009 - 6:39 pm -
I am the regional sales manager for GE MDS and we do have the SD9 available that is an ideal fit...
Question about how to develop a software which is communicating on modbus/TCP
New Replies:
By M Griffin on 11 September, 2009 - 5:27 pm -
In reply to JonC:
I read your blog post, and it sounded interesting. How did you do the remote...
By JonC on 11 September, 2009 - 11:55 am -
Hey all,
Don't know if anyone is still working on this. I have written a great deal of code...
I am seeking help with my sensor device design questions.
Is this a possible way to connect LOGO! Siemens to a HMI?
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