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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
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phone calls taper off."
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phone calls taper off."
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Can a VFD be configured to have a delay? Its a robicon VFD.i.e you increase its frequency and the motor speeds up after a while.
choice of software for drafting PLC panel drawings and loop schematics
New Replies:
By Ger on 1 October, 2009 - 9:37 am -
I have been designing PLC panels for a number of years now using Autocad. It gets easier over time...
By M Griffin on 29 September, 2009 - 4:20 pm -
In reply to bqviet: Yes, I agree that Dia can probably do the job as well as any of the other...
I really don't know why people have to use such a complex tools as AutoCAD for this job. I work for...
By M Griffin on 26 September, 2009 - 4:00 pm -
Panel layout drawings and schematics have two different sets of requirements. Panel layout drawings...
from the instrumentation and control department...
want some guides about power plant instrumentation and control
want some guides about power plant instrumentation and control
I need user manual or any technical drawings regarding Yorkshire YSF6 circuit breaker 11KV,630A
New Replies:
Hi,
Retro fitting a spare 630A breaker to the Yorkshire YSF6, would you mind emailing it to...
What is the difference between NPS low and NPS high
Bidirectional flow meter for flow measurement.
New Replies:
By Rohit Chandak on 30 September, 2009 - 1:26 pm -
Hi Tushar,
As its steam application I would recommend use of bi-directional Averaging Pitot...
By Mark Thomas on 25 September, 2009 - 9:26 am -
Without much process information a Coriolis meter could work in each application.
If you would...
Proper selection of a online flow sensor for measurement of air flow in 3" pipe
New Replies:
By Rohit Chandak on 30 September, 2009 - 1:19 pm -
Orifice Plate has been most standard instrument on such application but over the years engineers...
By Daniel M on 27 September, 2009 - 12:40 am -
If you need measure NORMAL m3/h, you can use Thermal Dispersion flow meters, or of course...
Is it possible to connect Siemens AO card 4-20mA output to Siemens 4-20mA AI card?
New Replies:
Hi guys,
Thank you very much for the suggestions:)
My AO card model is 6ES7-332-5HF00-0AB0
and...
By Y.K.JARIWALA on 30 September, 2009 - 10:15 am -
Normally , AO cards are source signal [4-20 madc] & hence when you connect it to AI card of the...
By Roy Matson on 30 September, 2009 - 6:42 am -
Hello,
The simple answer is to use a signal isolator. However if you study the wiring drawing...
By rsanjeevan on 30 September, 2009 - 4:03 am -
Hi,
place a suitable isolator b/w ao & ai card and see. i hope this will work because it may...
from the Electrical engineer department...
Medium Voltage Variable Frequency Drive to Control the Speed of Motor
I am electrical engineer by profession and currently I am doing research on medium voltage Variable Frequency drive (also called as VFD, VSD, AC drive, VVVF, etc.)
New Replies:
Dear Mahesh sir,
I am also an electrical engr. now working with PRAN_RFL GROUP, Bangla desh. I...
allowable pressure drop across control valve
Offshore hydrocarbon gas detectors' voting criteria
New Replies:
By Phil Corso on 29 September, 2009 - 1:00 pm -
Arvinon... An ESD company I once had provided M of N voting systems for applications similar to the...
By Aravindh on 29 September, 2009 - 6:36 am -
Hi,
May i know how did you manage this voting requirement? Kindly request you to share me your...
How to put to master in the same Modbus bus RS485
New Replies:
By Lorne on 28 September, 2009 - 10:03 am -
Check out the PLC09 Arbitrator (www.calta.com). It was developed for exactly this application.
...
By Patrick L on 28 September, 2009 - 2:58 am -
Hi There,
HMS makes a gateway that is Modbus RTU slave to Modbus RTU slave. Connect one master...
By criders on 25 September, 2009 - 6:20 pm -
Hi,
I think that you would have to find a way to sync the two masters somehow. When one of the...
INTERFACING SIEMENS S7 PLC WITH ABB AC800M + COMPACT HMI
How to calibrate Gas Vortex flow meters, with Gas or liquid?
New Replies:
By Daniel M. on 27 September, 2009 - 12:10 am -
Hello Amid
vortex is a velocity meter. The K factor determined with water, is valid for ANY...
I am facing some problem in converting DeltaV DCS graphics into OSISofts PI ProcessBook Graphics
New Replies:
I've used GrITS for converting Bailey to PI graphics but not DeltaV. The support is very good. I...
Communicating my Allen Bradley PLC with DF1 configured processor.
For DF1 full duplex is it 9300-USBS? or any other converters are available
For DF1 full duplex is it 9300-USBS? or any other converters are available
New Replies:
By Ken Roach on 26 September, 2009 - 2:25 am -
Yes, the 9300-USBS is fully supported for DF1 Full Duplex communications to all Allen-Bradley...
Problem connecting to Factorytalk historian server.
New Replies:
Make sure you have the server name exact, and that the users names and computers to use the system...
GT Trip on IGV control trouble
New Replies:
By nanang on 25 September, 2009 - 11:24 am -
dear CSA,
we can see the condition of servo valve and cylinder hydraulic actuator using servo...
Same problem occurs with our machine also. but it happens during startup and GT IGV get opened from...
Thermal relief valve is required at pump suction ?
New Replies:
By fahm on 25 September, 2009 - 10:26 am -
Dear Akash,
I'm Mr.Fahm. Regarding u're issue TRV which is in a building. for what sort of pump...
How to measure the oil level on seawater in a specific area?
New Replies:
By Jason on 25 September, 2009 - 7:42 am -
We have several 'Leakwise' units installed.
We use them for trace level detection, I cannot tell...
How to determine the new exhaust temperature setting of MS5001 GE Gas turbine, after changed of capital part to R or P/NT type.
Bailey DCS (infi90) training and support these days???
New Replies:
By Roger on 24 September, 2009 - 4:30 pm -
Hi John,
just wondering where you are located. My experience is quite different. Maybe its an...
C Core repeatedly fails. Causes I/O to freeze.
New Replies:
> What have you done to try to resolve the problem other than resolve a ground? <
...
Quick panel to 1747-SN
New Replies:
Thank you for your feed back
But can I buy a converter which has rs485 to Remote IO protocol...
Can any body tell me the minimum level of wattage of signal to ignite the hydrocarbon atm?
New Replies:
It is the amount of energy available to the fuel mix thats important and that can be delivered not...
By Bruce Durdle on 23 September, 2009 - 6:58 pm -
You are not interested in the wattage so much as in the energy that can be released into a spark. ...
from the is-there-anything-newer department...
Looking for books on tandem rolling mill theory and operation...Software developer at an industrial automation contracting company wants to learn more about product is a rolling mill control systems
New Replies:
Regarding books, there are two books by William Roberts you may also have come across: "Hot...
By Peter on 23 September, 2009 - 3:35 pm -
Mike,
I agree, there's a huge number of factors that go into rolling. We deal almost...
How to program script into the keys of the Honeywell OEP keyboard for Experion
New Replies:
In our native window displays we have a target on the display which is configured (group number is...
Thanks so much for taking the time to respond Rudi. I really do appreciate it. However I believe...
urgent Encoder figure out problem
New Replies:
By vibz86 on 23 September, 2009 - 1:41 pm -
I thought of connecting channel A to port B int pin (rb0) and connecting channel B to RB4. Then...
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