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The threads that wouldn't die...
- PC reliability?
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- Where do we go from here?
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- 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
The trouble with a kitten is that
When it grows up, it's always a cat
-- Ogden Nash.
When it grows up, it's always a cat
-- Ogden Nash.
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Posts from...
Sunday, October 21, 2007
Mismatch in fuel gas flow values for GE Frame5 Mark V turbine.
New Replies:
By CSA on 21 October, 2007 - 6:42 pm -
By CSA on 21 October, 2007 - 6:42 pm -
One of the things I've always done when this was raised as a problem is to use a water tube...
By gas_flow on 21 October, 2007 - 5:03 pm - >How long ago was the orifice plate and
>metering tube installed?
The Orifice Plate, DP...
I want to know the fuel oil pressure to GE frame 9 gas turbine when the unit is running on fuel oil...
New Replies:
By CSA on 21 October, 2007 - 6:30 pm -
By CSA on 21 October, 2007 - 6:30 pm -
Which Frame 9 GE-design heavy-duty gas turbine generator do you have: a 9E or a 9FA or a 9FB?
...
Controlling a valve using digital outputs
New Replies:
By Roy Matson on 21 October, 2007 - 6:22 pm -
By Roy Matson on 21 October, 2007 - 6:22 pm -
Eric,
From your description of the valve I assume it is an electric motorised valve (not a...
By Stefan Lynge Christensen on 21 October, 2007 - 6:03 pm - Hello
You need a so call "three point controller" (closing, opening, stopped). This is a...
By A.K.Hait on 21 October, 2007 - 6:02 pm - If you have pneumatic solenoid actuated control valve as on/off valve then whatever you do in the...
What is meant by Scaling of Control values
One example on HMI cimplicity
New Replies:
By CSA on 21 October, 2007 - 6:17 pm -
By CSA on 21 October, 2007 - 6:17 pm -
If you won't respond to *all* the questions asked of you, it's virtually impossible to assist you.
...
By jamal on 21 October, 2007 - 5:51 pm - Mr.CSA our cimplicity program version 6.1 build5303 toolbox program v11.04.03c build 7142
my...
By hmi on 21 October, 2007 - 4:55 pm - thank you for your response to me. cimplicity program it version 6.1 build 5303
toolbox version...
explain of starting control for gas turbine
want to control level of a tank by simply turning pump on/off...
New Replies:
By Roy Matson on 21 October, 2007 - 6:08 pm -
By Roy Matson on 21 October, 2007 - 6:08 pm -
Hi,
The normal way to control a pump in this situation is to have two switches one that opens on...
how reliable is Foxboro DCS
New Replies:
By Chandarana Rajesh on 21 October, 2007 - 6:07 pm -
By Chandarana Rajesh on 21 October, 2007 - 6:07 pm -
Dear erne. castro @ gmail. com
yes, you can very well fetch data from vt100 with small amount...
Need some direction.
New Replies:
By Mark on 21 October, 2007 - 6:07 pm -
By Mark on 21 October, 2007 - 6:07 pm -
Automated Solutions offers several off-the-shelf Modbus products that can be used to build your...
How terminal resistance gets cancelled?
New Replies:
By Roy Matson on 21 October, 2007 - 6:06 pm -
By Roy Matson on 21 October, 2007 - 6:06 pm -
Sreeraj,
If you are familar with a Wheatstone Bridge. The 3 wire RTD is placed in the circuit with...
By Steve Yates on 21 October, 2007 - 6:05 pm - or this one
http://newton.ex.ac.uk/teaching/CDHW/Sensors/an046.pdf
Steve
www.mtl-inst.com...
I need a temperature transmitter, which includes remotely selectable dual inputs...
New Replies:
By Roy Matson on 21 October, 2007 - 6:04 pm -
By Roy Matson on 21 October, 2007 - 6:04 pm -
Eric,
Rosemount make a transmitter, I think it's model 3144 that has two inputs. How the inputs...
By Steve Yates on 21 October, 2007 - 6:03 pm - From a switching point of view, it may be easier to use 2 transmitters and just switch wich output...
i am stuck-up using the VIPA PLC (CPU 315sn) that uses a Siemens S7 Protocol...
Please give me some example codes in VB 6.0 to interface libnodave.dll with S7-300/S7-400
I want some detailed information about the relation between Honeywell C200 and Allen Bradley ControlLogix...
New Replies:
By Anonymous on 21 October, 2007 - 6:00 pm -
By Anonymous on 21 October, 2007 - 6:00 pm -
any one here from Honeywell to reply this issue?...
Modbus RTU protocol Vs J-bus protocol.
New Replies:
By dchartier on 21 October, 2007 - 5:56 pm -
By dchartier on 21 October, 2007 - 5:56 pm -
Hello shyam;
Jbus and Modbus are very similar, there is only a slight variance in the addressing...
AC Motor question
New Replies:
By nanda on 21 October, 2007 - 5:55 pm -
By nanda on 21 October, 2007 - 5:55 pm -
Theoritically thats how generators (fixed output) and motor (fixed input).... but thats not...
Trouble communicating to SLC 5/01 using PIC adapter.
slip ring IM of 50 KW used for hoist purpose makes a humming sound...
New Replies:
By Phil Corso, PE on 21 October, 2007 - 5:52 pm -
By Phil Corso, PE on 21 October, 2007 - 5:52 pm -
Responding to Ritesh's 20-Oct (20:53) query... it could be an open-rotor circuit:
1) What are...
Part-time embedded training
New Replies:
By anonymous on 21 October, 2007 - 5:49 pm -
By anonymous on 21 October, 2007 - 5:49 pm -
You can join Ramaya College for Advance studies
Don't join these small institutes you will suffer...
What the 'Firing Temperature'(TTRF1) a gas turbine indicates?
New Replies:
By NZ on 21 October, 2007 - 5:47 pm -
By NZ on 21 October, 2007 - 5:47 pm -
Verify if there is no drain drain valve remained open...
Rockwell ProcessLogix
New Replies:
By Sameh on 21 October, 2007 - 5:26 pm -
By Sameh on 21 October, 2007 - 5:26 pm -
Mr James
Could you tell me if we have Controllogix chasis and we changed the processor using C200...
Resource for Gas Turbine Control System
New Replies:
By Kevin J Guthorn on 21 October, 2007 - 5:25 pm -
By Kevin J Guthorn on 21 October, 2007 - 5:25 pm -
Yes I can. I have been associated with a control conmpany that has done numerous control systme...
How to control the voltage and power factor when two generators are running in parallel...
problem is Interrupt line ....
from the projects department...
Selection of Voltage level for Power Evacuation from a Thermal Power Plantwant to know the criterion for system voltage selection for thermal power plant
What are the criteria for changing over fuel on line?
A dc motor of torque 1kg-cm is to be rotated from 1 to 150 r.p.m based on the speed mentioned in that range
New Replies:
By Anon on 21 October, 2007 - 5:19 pm -
By Anon on 21 October, 2007 - 5:19 pm -
Hi,
Don't waste your time evaluating the numerous speed control techniques available without first...
Please advise where I can find the below item
Blind flange 3” 300” A-350 F2
Blind flange 3” 300” A-350 F2
New Replies:
By guanglin jiang on 21 October, 2007 - 5:19 pm -
By guanglin jiang on 21 October, 2007 - 5:19 pm -
we are the specialist of forging flange, we can produce all kind of flange according to customer's...
Needing recommendations for high speed PC based digital I/O.
New Replies:
By JJ on 21 October, 2007 - 5:15 pm -
By JJ on 21 October, 2007 - 5:15 pm -
Shaun,
I'm not sure I can help. For my current application, I am trying a National...
Tank-Pump Problem
New Replies:
By denn on 21 October, 2007 - 5:14 pm -
By denn on 21 October, 2007 - 5:14 pm -
bob,
This is not something that can be calculated reliably (there are tank geometries and flow...
By Curt Wuollet on 21 October, 2007 - 5:13 pm - Awful hard to calculate unless you know the level that the pump cavitates at, which can be...
By Walt Boyes on 21 October, 2007 - 5:12 pm - The pump has a minimum suction head. That is, the minimum pressure at the suction inlet. Unless it...
DB downloading
New Replies:
By xavierwh on 21 October, 2007 - 5:09 pm -
By xavierwh on 21 October, 2007 - 5:09 pm -
Do you mean getting the DB in the S7 PLC to your PC. If that's the case, we call it UPLOAD....
query regarding the explosion proofing of Junction box...
S-7 PLC confusion...
New Replies:
By xavierwh on 21 October, 2007 - 5:06 pm -
By xavierwh on 21 October, 2007 - 5:06 pm -
When configuring your hardware(I/O modules etc.) in Hardware Configuration, the software...
Can anybody tell about the replacement of PCA198 ARCNET Cards used?
New Replies:
By dkimmel on 21 October, 2007 - 5:05 pm -
By dkimmel on 21 October, 2007 - 5:05 pm -
I am considering upgrading a cimplicity 4.0 system communicating with a mark IV controller to the...
Calculation of Repeatability
from the Are there any decent ones anywhere??? department...
PL7 Pro guide for using bridging and FIP, etc.I'd like to be able to assist vendors with setting up the PLCs
New Replies:
By Dweebyone on 21 October, 2007 - 5:02 pm -
By Dweebyone on 21 October, 2007 - 5:02 pm -
obviously this is not a simple question.
Try reading the coms manuals provided with pl7 s.w...
Help with the shell command in VB 6
New Replies:
By lin on 21 October, 2007 - 5:00 pm -
By lin on 21 October, 2007 - 5:00 pm -
So how do you open an already existing file? I am trying to use notepad to open a help text file...
I need simulator
Two CT secondaries, in series.
New Replies:
By Roy Matson on 21 October, 2007 - 4:58 pm -
By Roy Matson on 21 October, 2007 - 4:58 pm -
I can't immagine why you need to do this but depending on the primary it will have different...
Can someone explain the whole 4-20mA thing to me?
New Replies:
By denn on 21 October, 2007 - 4:56 pm -
By denn on 21 October, 2007 - 4:56 pm -
Michael,
I used to live in Port Colburne at the time of 25 Hz power (lights flashed like a...
I need help about wireless connectivity
New Replies:
By Brian E Boothe on 21 October, 2007 - 4:53 pm -
By Brian E Boothe on 21 October, 2007 - 4:53 pm -
What is it with this old 60's /70's Double and Single Pair Cable Usages: "thats such wayyy...
would it cause delay to mix several networks on the same switch?!
New Replies:
By Tomy Zacharia on 21 October, 2007 - 4:52 pm -
By Tomy Zacharia on 21 October, 2007 - 4:52 pm -
You might run into trouble with netbeui if any of your computers use it.
Tomy Zacharia...
Please can someone tell me how to caculate motor power?
New Replies:
By Michael Griffin on 21 October, 2007 - 3:38 pm -
By Michael Griffin on 21 October, 2007 - 3:38 pm -
How to calculate what the motor power and current are? You have already told us what they are.
...
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