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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
Liar, n.:
A lawyer with a roving commission.
-- Ambrose Bierce, "The Devil's Dictionary"
A lawyer with a roving commission.
-- Ambrose Bierce, "The Devil's Dictionary"
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Posts from...
Wednesday, December 5, 2007
We are in the middle of design for one of the most complex fish hatcheries ever to be built in North America. Our engineering consultant is recommending standard PLC and SCADA alarm and control system but one of our staff is really pushing a WinPLC based system...
New Replies:
By Victor Robert on 5 December, 2007 - 8:57 pm -
By Victor Robert on 5 December, 2007 - 8:57 pm -
Sorry, Curt. I didn't mean to put down the product; I don't know anything about it. Its just that...
By Curt Wuollet on 5 December, 2007 - 4:42 pm - Just as a note:
You can buy the mainboard used in the $200 WalMart PC for $60. And I don't...
can i use a 4 wire prt instead of a 3 wire one to do the same job?
New Replies:
By Mohammed Fawzi Kharoosa on 5 December, 2007 - 8:53 pm -
By Mohammed Fawzi Kharoosa on 5 December, 2007 - 8:53 pm -
Hi
What is the function for 3rd wire? It means we can use 2 wire RTD at all. As I said 4 wire...
By Mohammed Fawzi Kharoosa on 5 December, 2007 - 6:41 pm - Three wire & Four wire sensors provide compensation for lead resistance and It depend for the:
...
By Bryce Gillan on 5 December, 2007 - 5:04 pm - When using a 4-wire RTD, the effect of lead resistance is eliminated and has no impact on accuracy....
By Issac on 5 December, 2007 - 5:03 pm - You're on track. Cut off the extra wire.
A 4 wire RTD is a 3wire RTD with an extra wire....
Can anyone point to available references?
New Replies:
By Dooley, Vince on 5 December, 2007 - 8:51 pm -
By Dooley, Vince on 5 December, 2007 - 8:51 pm -
Try looking for the history of the company AVO. They were pioneers in that area.
Regards
Vince...
I had made redundancy in ControlLogix on hardware side but facing problem on software side
New Replies:
By Tom Tran on 5 December, 2007 - 8:38 pm -
By Tom Tran on 5 December, 2007 - 8:38 pm -
Talal,
For redundant Controllogix, you need to configure an alias topic.
1. Configure topic...
By Talal on 5 December, 2007 - 5:20 pm - Come on Guys help me out..
The probelm is that Tag quality in Rslinx OPC test client is BAD...
Is it possible to draw a curve of the GT compressor's fouling with the dat you can have with dump of the memory (Mark V <I>) ?
New Replies:
By Gianluca de Arcangelis on 5 December, 2007 - 4:53 pm -
By Gianluca de Arcangelis on 5 December, 2007 - 4:53 pm -
Air intake Filters are not all the same, and "best" doesn't really apply to the OEM...
How does one adjust the cross-current compensation in paralelled alternators
Failure to perform GE frame 9FA Compressor Blade Wash-Mark VI Speedtronic
New Replies:
By Gianluca de Arcangelis - www.tteur.com on 5 December, 2007 - 4:52 pm -
By Gianluca de Arcangelis - www.tteur.com on 5 December, 2007 - 4:52 pm -
Of course, compressor washing is required so to clean the compressor and take the output to the...
In the loop powered IS transmitters in the field , 24 VDC comes from DCS I/O card or the barrier?
In a two gen system, two gen which were sharing equal load,one gen is disconnected and then after frequency for both reached 50hz ,gen is resynchronised in the network. so should they share same load as earlier or not?
What to do with an old power supply?
New Replies:
By CSA on 5 December, 2007 - 4:44 pm -
By CSA on 5 December, 2007 - 4:44 pm -
I believe GE has a repair-and-return option for most of their Speedtronic equipment....
Noise? or What to look for?
New Replies:
By Norman Bourne on 5 December, 2007 - 4:39 pm -
By Norman Bourne on 5 December, 2007 - 4:39 pm -
Hi Brian,
I have had a problem with a Telemecanique Safety relay, and whilst browsing the web,...
from the Automation List department...
Graphical Editor or MMI for use with Visual Basic or Visual C++
I am looking for a graphical editor or active-x based MMI package that I can use in conjunction with Visual Basic and/or Visual C++...
New Replies:
By CSTSOFT on 5 December, 2007 - 4:38 pm -
By CSTSOFT on 5 December, 2007 - 4:38 pm -
Very good graphic designer, you should take a look. http://www.cstsoft.com...
i need book about gas turbine control system frame 9 and MARK-V
New Replies:
By CSA on 5 December, 2007 - 2:02 pm -
By CSA on 5 December, 2007 - 2:02 pm -
Umm, have you looked in the instruction manuals provided with the turbine-generator by the packager...
Help me to find the communication problem DCS MARK 5 over MODBUS
New Replies:
By dchartier on 5 December, 2007 - 1:53 pm -
By dchartier on 5 December, 2007 - 1:53 pm -
Hello Damene;
First checking the cabling is a good start, but not the only one.
Modbus...
I have Frequency Inverters and Soft-Starters from WEG. They are MODBUS/RTU capable, and I started to link them to the computer through RS485 network.
New Replies:
By Alejandro Farre on 5 December, 2007 - 1:52 pm -
By Alejandro Farre on 5 December, 2007 - 1:52 pm -
I suppose no one is familiar with this type of devices from WEG?
What about any device like...
To control Parallel port with TwinCAT
Question about AC servo motor drives
New Replies:
By Curt Wuollet on 5 December, 2007 - 1:44 pm -
By Curt Wuollet on 5 December, 2007 - 1:44 pm -
Most drives will handle "foreign" motors if you have the data for the motor and they are...
By William Sturm on 5 December, 2007 - 1:43 pm - Some drives can be configured for other motors, but many cannot. A-B Ultra 100, many Baldor, and...
By Ken Emmons Jr. on 5 December, 2007 - 1:43 pm - If this is the typical permanent magnet servo with hall switch commutation and incremental encoder,...
from the Automation List department...
Boiler Feedwater Pump Control in Steam-powered Pumping StationControl for a boiler feedwater system which is to continously supply feedwater at 240 psig to a steam turbine plant.
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