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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
Two wrongs don't make a right, but three lefts do.
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Linux increasingly adopted by Fortune 500 companies
Web HMI for HVAC
New Replies:
By Mark on 1 August, 2009 - 4:52 pm -
Hello,
PeakHMI might be a good fit for you.
Good luck,
Mark
http://www.peakhmi.com/...
By M Griffin on 1 August, 2009 - 11:49 am -
I have a free web based HMI called "HMI-Server" that might be suitable. You can download...
some one know about logic or programming for air washers?
New Replies:
By Bob Peterson on 1 August, 2009 - 4:41 pm -
Get out your 2nd or 3rd semester physics book.
Working with air can be counter intuitive.
Its...
AIR that we breathe day in and out is a funny entity. If you follow the process on psychrometric...
Equal percentage characteristic
New Replies:
By Mik on 1 August, 2009 - 8:13 am -
Allan,
can you explain in more details what kind of tuning problems can be experienced? In...
The main application for using an equal percentage valve characteristic is where it is controlling...
Armor Start DC bus fault
New Replies:
By Steve Myres, PE on 31 July, 2009 - 10:54 pm -
You do realize that configuring the fault MESSAGE to go away doesn't give the drive more regen...
from the A presentation of the title. department...
Ship's Alarm Control and Monitoring System (ACMS) for commercial vessels
Resources for Ship's Alarm Control and Monitoring System (ACMS)
package that will allow me to datalog from the plc directly to a SQL table
New Replies:
By Trevor Ousey on 29 July, 2009 - 6:30 pm -
Easily possible to retrieve data from the CLX and pass into a SQL database...
Rockwell has a...
Discussion about osisoft pi
New Replies:
By Alvaro Rodriguez on 29 July, 2009 - 5:15 pm -
Take a look at iHistorian from GE Fanuc....
I would like to read a text string from a device which connected to the serial port and save this string to a text file or in to a database..
New Replies:
By Umaima on 29 July, 2009 - 12:53 pm -
Hi there,
plz send me the source code in c for sending the data to the serial port. ...
i have some confusion about control valve choking phenomena...
New Replies:
By Ronald Deepak on 28 July, 2009 - 10:31 pm -
Dear All,
Good to see a discussion going on here about choked flow. I would like to add a few...
CHIPTOPI on ALPHASTATION VMS
New Replies:
By Juan Senquiz on 28 July, 2009 - 6:43 pm -
I am wondering was this issue resolved? Also if you are still running on an Alpha you may want to...
from the Leak Detection Systems For Pipelines department...
New Revision of API 1130 (Covering Pipelines' Leak Detection etc)API-1130 (3rd edition) applicable to gas pipelines or not ?
Reliability and availability of ZENON supervisor and STRATON automation software ?
New Replies:
Hi fjr1300,
Answering your third question the engineering tool can be used for PC and Windows CE...
Non contact type method for on line measurement of thickness of Calendered fabric sheet at different points on it's width
New Replies:
By Curt Wuollet on 26 July, 2009 - 6:01 pm -
I believe Keyence sells these type of gadgets as well, at least I remember a sales pitch.
...
By Rob on 26 July, 2009 - 9:17 am -
Flat Sheet Measurement of this range of thickness is very common in the Pulp & Paper Industry....
SERVO VALVE NULL Bias Current
New Replies:
> But, the position error, which I haven't really seen a good trend of, is still puzzling. <
...
This explanation would make more sense, especially because there is no upset in the turbine output...
Update 2:
I can observe full curve oscillation for servo currents with 12.5 Hz and 33Hz...
Update:
After switching the dither off I haven't observed any more jumps last night.
I'm...
By minister on 23 July, 2009 - 6:12 pm -
I was thinking in my bed about this changes of the servo current. It's not the resistance that...
Thanks CSA for you input:
Post update:
>You have not provided any information on...
This is troubleshooting: Understanding the possible causes of a problem and working to eliminate...
CSA,
I had opportunity to shutdown GT1 and found something interesting.
It seems that...
The more I think about this the more I think if you're seeing it on all the servos on all the units...
MIKEVI
The forum is great thing, I agree with you.
I will update my post if I get any new...
In the early days of Toolbox, it was possible to download to individual VSVOs. Maybe that's not the...
CSA,
thanks for your post. I appreciate your time spent at the computer.
> Can you please...
Minister,
the great thing about GE's control systems are that they have lots of great tools to...
You have a TMR control system. That means that each control processor has it's own gain and null...
Dear CSA,
Thank you this time for your reply!
> One more time: The SRV regulator is a...
what is the effect of pressure on rotameter?
New Replies:
By Roy Matson on 24 July, 2009 - 11:38 am -
Rotameters are just like any other flow restriction, the more pressure you put on them the more...
Can someone explain to me how this lead / lag pump configuration works?
New Replies:
By Edward Li on 22 July, 2009 - 11:59 am -
Hi Chan:
If you get that logic already, just ignore this one, if not, send me an email so I may...
deciding between ABB 800xA and Emerson Ovation
New Replies:
By Bob on 22 July, 2009 - 9:35 am -
Hello Walt,
Glad I ran into your post, so I share this very important information with you.
...
Can anyone list a good, reliable, TESTED Alarming Scenario software-hardware that dials out alarms and annunciates the alarms over the phone?
New Replies:
I have Wonderware's SCADAlarm. It has worked very well for me. It can send messages to...
Need help to get a open omron protocol specification.
New Replies:
Thanks a lot, i want to start workin with rs232 usin a cj1m plc.
I'll look for this documentation....
By M Griffin on 20 July, 2009 - 3:56 pm -
The protocol is called "FINS", and it is fully documented in their manuals. Depending on...
from the Control department...
Methane Non-Methane Measurement Techniques in Ambient Monitoring SystemsRequest to kindly help determine the most widely used techniques for Measurement of Methane Non-Methane
equation/Formula to calculate effect of change in pressure on Delta P
New Replies:
By ghate vinod on 20 July, 2009 - 1:45 am -
> how you have decided delta P as 1000 mmWC? is there any standard or general practice? <
...
Frame 5 MW swing.
New Replies:
By Dooley, Vince on 20 July, 2009 - 12:48 am -
This may or may not be relevant but when dealing with dynamic stability issues it can be useful to...
Is there any simulator available for HNZ protcol?
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