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Search: Posts Made By: rytko
Forum: LIVE PLC Questions And Answers December 1st, 2009, 01:29 PM
Replies: 7
Views: 1,404
Posted By rytko
Undergraduate engineering and technology schools...

Undergraduate engineering and technology schools are usually teaching theory, not practice, and many of the topics in the classes presented haven't changed in decades (if not centuries), so what is...
Forum: LIVE PLC Questions And Answers July 21st, 2009, 01:11 PM
Replies: 14
Views: 4,715
Posted By rytko
Since you don't even understand the s-domain, I'm...

Since you don't even understand the s-domain, I'm pretty sure it'll be quicker, cheaper, and easier if you purchase software that is already made for this purpose. Several companies produce...
Forum: LIVE PLC Questions And Answers July 1st, 2009, 03:49 PM
Replies: 18
Views: 3,699
Posted By rytko
They are not flimsy; they are ABET-EAC...

They are not flimsy; they are ABET-EAC accredited. The programs have just become so specialized to EE that they have added EE courses and dumped the standards I mentioned before. From what I can...
Forum: LIVE PLC Questions And Answers June 30th, 2009, 10:44 AM
Replies: 18
Views: 3,699
Posted By rytko
I prefer to work with controls engineers with ME...

I prefer to work with controls engineers with ME degrees in the process control field. They have a better understanding of how the equipment operates, e.g., compressors, boilers, heat exchangers, air...
Forum: LIVE PLC Questions And Answers May 8th, 2009, 11:09 AM
Replies: 11
Views: 2,541
Posted By rytko
Try searching "multichannel temperature...

Try searching "multichannel temperature controller."
Forum: LIVE PLC Questions And Answers March 31st, 2009, 12:41 PM
Replies: 2
Views: 2,954
Posted By rytko
You have to go to Control Panel - Add or Remove...

You have to go to Control Panel - Add or Remove Programs, then click on AutoCAD Electrical. This should bring up a screen that allows you to modify the installation and add new manufacturer...
Forum: LIVE PLC Questions And Answers March 6th, 2009, 09:58 AM
Replies: 2
Views: 1,083
Posted By rytko
How about Rockwell's Integrated Architecture...

How about Rockwell's Integrated Architecture Builder or ProposalWorks?
Forum: LIVE PLC Questions And Answers February 17th, 2009, 04:39 PM
Replies: 4
Views: 1,519
Posted By rytko
Type C is often used for processes that have...

Type C is often used for processes that have frequent step changes in setpoint which would cause large immediate changes error leading to immediate changes in the control output (i.e., "bumps") due...
Forum: LIVE PLC Questions And Answers December 5th, 2008, 09:58 AM
Replies: 10
Views: 2,697
Posted By rytko
Please do not listen to Archon's comments. They...

Please do not listen to Archon's comments. They show little understanding of system dynamics, PID control, and control theory in general. Archon very much shows a "limited knowledge of it." There are...
Forum: LIVE PLC Questions And Answers October 23rd, 2008, 09:46 AM
Replies: 3
Views: 4,365
Posted By rytko
An engineer can design and program a control...

An engineer can design and program a control system that will work great, but if it isn't easily maintainable, many people (especially technicians) consider it to be useless. Why do you think such a...
Forum: LIVE PLC Questions And Answers October 13th, 2008, 12:18 PM
Replies: 2
Views: 1,222
Posted By rytko
There was a paper written on detecting race...

There was a paper written on detecting race conditions in ladder logic. I don't know if it will help you, but you might find it interesting. Check out:...
Forum: LIVE PLC Questions And Answers May 6th, 2008, 11:23 AM
Replies: 23
Views: 8,653
Posted By rytko
The whole point of using deviation variable...

The whole point of using deviation variable models is that they are independent of initial conditions. I've modified my original scripts and models to allow linearization and simulation using the...
Forum: LIVE PLC Questions And Answers May 5th, 2008, 11:53 AM
Replies: 23
Views: 8,653
Posted By rytko
Sorry I didn't see this thread earlier. I have an...

Sorry I didn't see this thread earlier. I have an article and MATLAB/Simulink files for this that I give to the college students I teach. Here it is.
Forum: LIVE PLC Questions And Answers April 18th, 2008, 11:45 AM
Replies: 15
Views: 2,345
Posted By rytko
I have a passion for both engineering and...

I have a passion for both engineering and teaching. I've found when I only teach full-time I miss engineering, and when I only work as an engineer full-time I miss teaching, so I do both. I work...
Forum: LIVE PLC Questions And Answers January 28th, 2008, 10:22 AM
Replies: 23
Views: 3,985
Posted By rytko
The problem of finding the transfer function of a...

The problem of finding the transfer function of a real system from input-output data is known as "system identification" and can be more difficult to solve than the control problem. There are linear...
Forum: LIVE PLC Questions And Answers December 13th, 2007, 11:04 AM
Replies: 15
Views: 2,629
Posted By rytko
A Hall-effect sensor should be able to pick up...

A Hall-effect sensor should be able to pick up the magnetic field produced by the spark plug current. It's non-contact.
Forum: LIVE PLC Questions And Answers September 28th, 2007, 10:17 AM
Replies: 11
Views: 2,216
Posted By rytko
I also have Erickson's book, and I think it's one...

I also have Erickson's book, and I think it's one of the best out there.
Forum: LIVE PLC Questions And Answers November 29th, 2006, 09:06 AM
Replies: 10
Views: 6,039
Posted By rytko
Tank levels usually don't change very fast, so I...

Tank levels usually don't change very fast, so I doubt an interrupt is necessary. The normal program scan should be adequate.
Forum: LIVE PLC Questions And Answers October 6th, 2006, 09:57 AM
Replies: 3
Views: 1,042
Posted By rytko
Oh, and put in a fuse so you stop blowing card...

Oh, and put in a fuse so you stop blowing card inputs. One with a blown fuse indicator.
Forum: LIVE PLC Questions And Answers October 6th, 2006, 09:53 AM
Replies: 3
Views: 1,042
Posted By rytko
Use a signal isolator in between. There is likely...

Use a signal isolator in between. There is likely a problem because of connecting the two different power supplies together.
Forum: LIVE PLC Questions And Answers September 15th, 2006, 10:13 AM
Replies: 42
Views: 5,368
Posted By rytko
I suggest watching the movie "Network" (1976)....

I suggest watching the movie "Network" (1976). It's a great story about one man standing up to people who pay more attention to the bottom line than the people who produce the bottom line. It always...
Forum: LIVE PLC Questions And Answers August 31st, 2006, 09:58 AM
Replies: 12
Views: 2,884
Posted By rytko
If I remember right, you have to keep the exact...

If I remember right, you have to keep the exact format.
Forum: LIVE PLC Questions And Answers December 9th, 2005, 12:20 AM
Replies: 26
Views: 3,143
Posted By rytko
More fun from the folks at IT ... 1. They...

More fun from the folks at IT ...

1. They shutdown a gateway computer between two networks (controls and office) over holiday break. Since a previous IT manager made the HMIs move onto the office...
Forum: LIVE PLC Questions And Answers October 19th, 2005, 12:46 PM
Replies: 5
Views: 3,619
Posted By rytko
Some users find the ISA form easier to tune. If...

Some users find the ISA form easier to tune. If you think about the PID equation in terms of phasors, the P term is at 0 degrees, the I term is at -90 degrees, and the D term is at 90 degrees. The...
Forum: LIVE PLC Questions And Answers April 26th, 2005, 04:57 PM
Replies: 9
Views: 2,149
Posted By rytko
I like PIDSYM2. I believe it's available from...

I like PIDSYM2. I believe it's available from http://www.caddepot.com (http://www.caddepot.com/). It has menu-driven component selection via previews and a loadable linetype file with standard ISA...
Showing results 1 to 25 of 56

 
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