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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
Law of Probable Dispersal:
Whatever it is that hits the fan will not be evenly
distributed.
Whatever it is that hits the fan will not be evenly
distributed.
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Posts from...
Today, Friday, July 3, 2009
Cicode function problem - Variable Tags
Mk V System Upgrade
New Replies:
By hello on 3 July, 2009 - 4:20 am -
By hello on 3 July, 2009 - 4:20 am -
Thanks everyone for your support, you're the best!!...
By rodman michaels on 8 June, 2009 - 10:16 am - There is already a matured product in the market called TMOS, that can completely replace the I-DOS...
Which is the correct bits stop number with none parity?
New Replies:
By Francesco Savino on 3 July, 2009 - 3:07 am -
By Francesco Savino on 3 July, 2009 - 3:07 am -
Before all,Thanks a lot for your answers.
The problem was born because two days ago i did some...
By Jerry Miille on 1 July, 2009 - 7:58 pm - Sure, if they strictly follow the specifications!
But, there are many, many suppliers of...
By David on 1 July, 2009 - 5:35 pm - Yes, but as you've noticed, many do not use two stops for no parity.
In fact, I find it rarer to...
Transfer problem since change in program
New Replies:
By Greg on 3 July, 2009 - 1:06 am -
By Greg on 3 July, 2009 - 1:06 am -
As ask before: do you have your upload information activated? If not you cannot upload a program...
By Robert Willis on 2 July, 2009 - 7:39 pm - Your messge is very hard to understand so I am going to repeat it so that I can meake sure that I...
Voltage VS. VAr / PF Control
New Replies:
By CSA on 3 July, 2009 - 12:49 am -
By CSA on 3 July, 2009 - 12:49 am -
Thank you for the feedback!
It's good to know what you found and how you've solved the problem.
...
By CIS on 2 July, 2009 - 10:50 am - Just wanted to give an update on what we have found. The reason for the Generator voltage being...
Reasons for high vibrations in turbines
New Replies:
By ctb on 2 July, 2009 - 11:27 pm -
By ctb on 2 July, 2009 - 11:27 pm -
Thrust balance issues. Caused from tbv or lack of cdp/hpc bleed....
By MOB on 15 June, 2009 - 5:27 am - Vibrations reasons (w.r.t gas turbines) -
1. Lube oil film failure
2. Low oil header...
By Ore Rotundo on 15 June, 2009 - 3:18 am - Usually GT bearings are equipped with radial, axial and seismic vibration probes. Standard GE HD...
By Bruce Durdle on 14 June, 2009 - 6:54 pm - If you lose a blade or 2 you will also get vibrations...
By Mk6TA on 14 June, 2009 - 6:11 am - Until now I've only seen two causes for high vibrations: bad shaft alignment and bad flame dynamics...
generator lube oil system
OPC Server Hanging at will
New Replies:
By UTR on 2 July, 2009 - 10:45 pm -
By UTR on 2 July, 2009 - 10:45 pm -
Having used both Matrikon and Kepware for similar applications I would reccomend moving to Kepware...
By Adriel Michaud on 2 July, 2009 - 10:26 am - MIX, have you contacted our OPC Support team? They'd be able to assist in resolving the issue. ...
By Fred Loveless on 2 July, 2009 - 9:59 am - Not all of us that develop OTS software are like that. I never assume that my software is not at...
By Curt Wuollet on 1 July, 2009 - 12:01 pm - Yes, but with shrinkwrap software shrouded in secrecy, it's very difficult to find out which. So,...
By Randy T. Jakosalem on 1 July, 2009 - 12:00 am - Sometimes its not the software but the hardware. Maybe your PC have not enough RAM space to run...
By Fred Loveless on 30 June, 2009 - 5:29 pm - Try KepserverEx (http://www.kepware.com). We have and extensive posotive history working with...
By Mark on 30 June, 2009 - 3:07 pm - Try a different OPC Server. Free, fully-functioning, 30 day trial version available for download at...
By Mark on 30 June, 2009 - 10:11 am - Hi,
The list of possible problems is very long. Without more data, finding the problem and...
By Curt Wuollet on 29 June, 2009 - 7:43 pm - I would probably try a different server. Or demand that the author fix it. Without code or...
Difference of Diaphragm Seal type (capsule, welded, clamp, etc)
New Replies:
By Sushant Chanana on 2 July, 2009 - 10:42 pm -
By Sushant Chanana on 2 July, 2009 - 10:42 pm -
Hello Mettiki,
Just go to this link and download product catalog(6.16): ...
Need a laboratory to calibrate a heat treat oven
Effect of installation of IGV
New Replies:
By ctb on 2 July, 2009 - 8:59 pm -
By ctb on 2 July, 2009 - 8:59 pm -
IGV & the first five stages of stator vanes on th lm6000 HPC are designed as variable geometry...
Create triggers at compressed and uncompressed archives. Create new tables in a WinCC project database. New tables will be synchronized in a redundant server system?
I'm seeking advice on a replacement device for an ADAM-6017, that's approximately the same size.
New Replies:
By William Sturm on 2 July, 2009 - 5:53 pm -
By William Sturm on 2 July, 2009 - 5:53 pm -
If you can do C programming, look at the single board computers from Rabbit Semiconductor. They are...
By M Griffin on 30 June, 2009 - 9:44 pm - I've never bought anything from the following, so I can't exactly recommend them. However, you...
By Don Lupo on 30 June, 2009 - 6:38 pm - I checked the datasheet on the Advantech-6017 module and it indicates an update time of 10...
Trying to use a Microcor III PR controller made by Coreci. Age unknown. The controller works in manual mode, but I am unable to decipher tuning and programming codes without a manual. Any help locating a manual for this controller would be greatly appreciated.
New Replies:
By Wim21 on 2 July, 2009 - 5:32 pm -
By Wim21 on 2 July, 2009 - 5:32 pm -
I am interested in a copy of your user's manual of the Microcor III. Can you send it by email or by...
project using the Temco Thermostats (TSTAT5) which are run on Modbus communication (daisy chain connection)
New Replies:
By Benson Hougland on 2 July, 2009 - 5:29 pm -
By Benson Hougland on 2 July, 2009 - 5:29 pm -
Hello SK- I suggest posing your question to Opto 22 Product Support at support@opto22.com, or call...
Common mode voltage measurement
New Replies:
By Jerry Miille on 2 July, 2009 - 5:27 pm -
By Jerry Miille on 2 July, 2009 - 5:27 pm -
The reason that two wire connections can work is because the logic power supplies at each location...
By Oliver77 on 2 July, 2009 - 1:29 pm - Hi Jerry,
Very informative links, thanks.
I have used devices(power meters, controllers,...
By Curt Wuollet on 2 July, 2009 - 1:03 pm - Common mode voltage has no meaning without a reference point. The shield would be a good guess as...
By Lew McKinney on 2 July, 2009 - 9:59 am - I agree Jerry. I always used a "cheater" plug on the power supply of the scope to be able...
By Curt Wuollet on 2 July, 2009 - 12:05 am - But that isn't the common mode voltage.
Regards
cww...
By Jerry Miille on 1 July, 2009 - 11:03 pm - Excellent response and absolutely correct as far as viewing the common mode signal is concerned!
...
By Oliver on 1 July, 2009 - 10:08 pm - Your procedure mentions a third point,i.e., logic ground as the reference. A lot of RS485 devices...
By Lew McKinney on 1 July, 2009 - 1:50 pm - One of the easiest ways to view a signal like this is to use a dual trace scope of sufficient BW. ...
By Curt Wuollet on 1 July, 2009 - 12:22 pm - Strictly speaking, the common mode voltage is the average voltage of the two differential signals....
By Jerry Miille on 1 July, 2009 - 10:34 am - Simple,
Connect one side of your scope (not a meter because this voltage can and usually is...
high radial vibration at journal bearing of air compressor is adding to our woes
Job Maintenance for YSF6 CB,11KV, 630A
Test system for training on the basics of PLC-based control systems
New Replies:
By Germinal Puigbertrand on 2 July, 2009 - 1:48 pm -
By Germinal Puigbertrand on 2 July, 2009 - 1:48 pm -
You have to take a look into the FREE PAC CONTROLLER SIMULATOR included into the Opto22 's PAC...
from the Electrical and Mechanical Engineering department...
Problem with steam turbine and induction generatorCoupling damage frequently occurring in 75 kw steam turbine synchronized with Induction generator
New Replies:
By Shaiby Koshy on 2 July, 2009 - 1:20 pm -
By Shaiby Koshy on 2 July, 2009 - 1:20 pm -
Dear sir,
if sync is to be done not only with speed (Hz) what all things need to be taken care...
By Phil Corso on 30 June, 2009 - 6:09 pm - Koshy... Apparently during run-up of the STG driver, there is sufficient residual magnetic flux in...
Best design for high voltage substation earthing system
New Replies:
By Almshouse on 2 July, 2009 - 12:00 pm -
By Almshouse on 2 July, 2009 - 12:00 pm -
Go to www.eng-tips.com They have forum for High Voltage....
Resources for automation and control freelancing in London?
New Replies:
By Pedro on 2 July, 2009 - 11:56 am -
By Pedro on 2 July, 2009 - 11:56 am -
He Is in London, Ontario CANADA folks.............
By Ian on 1 July, 2009 - 2:31 am - Hi,
I did what you are now doing back in 1997-2003. I never ended up getting contract work in...
I want to prepare a Pump Control Scheme Study Report for a large water supply network.
New Replies:
By Dick Caro on 2 July, 2009 - 11:47 am -
By Dick Caro on 2 July, 2009 - 11:47 am -
I can supply such a report. Please contact me off this list if you are interested.
Dick Caro
...
Shutdown logic signal between two DCS systems
New Replies:
By A.K.Hait on 2 July, 2009 - 11:27 am -
By A.K.Hait on 2 July, 2009 - 11:27 am -
In my experience I haven't come across any standards which says that shutdown through serial link...
By khanna on 2 July, 2009 - 5:29 am - These are two critical shutdown signals to trip-valves. As such we have not done this yet as we...
By Roy Matson on 30 June, 2009 - 10:49 am - How critical are the shutdown signals? What will happen if you loose communications?
Have you...
Motor Speed Control
New Replies:
By Alexandre Lima on 2 July, 2009 - 10:47 am -
By Alexandre Lima on 2 July, 2009 - 10:47 am -
It's is possible using a Varible Frequency Drive, or a Drive, it's an electronic device that can...
teleperm xp system admini documentation needed
yokogawa ALP111 and Siemens 315-2dp-af03 communication problem.
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 shashank on 2 July, 2009 - 6:23 am -
By shashank on 2 July, 2009 - 6:23 am -
Hi neha,
i would be very thankfull if u plz send me the c code for reading data bytes from...
By neHA on 8 June, 2009 - 9:46 am - >you can read a data from the serial port using turbo C compiler, use inport and outport to...
By Curt Wuollet on 4 June, 2009 - 1:42 am - I'd be happy to except that the serial port code for Linux would probably not compile. The IO stuff...
By Paul Wacker on 3 June, 2009 - 3:05 pm - Have you considered a simple web search for this?
...
Refitting GT 9th & 13th pipe work for Cooling Optimization
Send status from one PLC to another via net Profibus.
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