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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
"Reflections on Ice-Breaking"
Candy
Is dandy
But liquor
Is quicker.
-- Ogden Nash
Candy
Is dandy
But liquor
Is quicker.
-- Ogden Nash
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Help with Area Classification
New Replies:
By Bruce Durdle on 13 October, 2009 - 2:29 pm -
Class I Div 2 is not a IEC classification - the IEC equivalent is Zone 2.
If you are working to...
Class 1 div 2 need IIC junction box acc. to IEC standard.
It's easy to fabricate Exd IIC T6...
A computer virus caused serious problems recently for an Australian electric utility.
New Replies:
By Old, Bob on 13 October, 2009 - 9:02 am -
I'm not sure this is any more solid but check out the first two threads:
...
By curt wuollet on 12 October, 2009 - 11:54 am -
The scanty information I read said that the idiots had their operation dependent on Windows even...
Need help with c script in wincc 5.1
New Replies:
Try this one.
int a;
a=GetTagBit("tag1");
if (a==1)
{
...
Can anybody told me how to tune Baldor Linear motor .
We need to understand how works AND voting for 2 channels in a relay module of 3500 system.
Curious about fuses protection when using power distribution blocks.
has anyone a user manual for a landis and staefa central heating controller type RWB9 ?
New Replies:
I was looking for the manual for the mentioned controller in one of our project file that we...
Need a PLC that runs on 12 volts and supports IEC 1131-3 Structured Text.
New Replies:
Beckhoff has a large range of controllers that use their Twincat IEC 6-1131 software, allow you to...
I'm looking for a relay which will operate if the input has energised x times in y minutes
need to link two modbus master devices
New Replies:
By Jerry Miille on 9 October, 2009 - 10:09 am -
You can use the MARC Omnii-Comm:
http://www.miille.com/din266-p00.pdf
for this type of...
INTERFACING SIEMENS S7 PLC WITH ABB AC800M + COMPACT HMI
New Replies:
By Rob on 8 October, 2009 - 11:02 pm -
Yes, you can if you wish. No, you don't require any other methods.
I assume your S7-313C PLC...
4-20ma and loop powered
New Replies:
By Rick Irvine on 1 October, 2009 - 7:54 pm -
Transmitters are called 4 wire or 2 wire. A 2 wire transmitter only has 2 wires connected to it. ...
If i send the command(010300210001, crc, crc) using serial port in VB.NET. I don't get any response.
New Replies:
The tutorial actually is great and should answer all you questions but just to add...
Point 2.) ...
> 1.) You have got to set up the port - Port Number, Baud rate, start/stop bits, data bit,...
Unfortunately you are a long way off the mark.
1.) You have got to set up the port - Port...
I am a newbie also, maybe you are closing the port before info or string is read. vb has examples...
Coal flow where to start?
New Replies:
By Ken Emmons Jr. on 1 October, 2009 - 8:35 am -
I assume you are talking about the small pellet sized coal in delivery tubing? Can you monitor the...
We need to talk to Crestron with a Beckhoff PLC, by using the Crestron read/write blocks
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...
By Mark Thomas on 22 September, 2009 - 5:06 pm -
A Coriolis Mass flow meter would give you great measurement. I put together a sizing with you flow...
Error message in a VB PlugIn to browse devices in a Lonwork network
New Replies:
By D. Fisher on 30 September, 2009 - 10:11 am -
Try going out to www.echelon.com/support and downloading and installing LonMaker 3.2 Service Pack...
measuring or detecting sugar level
New Replies:
Hi,
If the sample is Homogeneous and you would like to measure Sugar Concentration. I suggest go...
How from a VBScript can I talk to an AB PLC5 using a Wonderware DAS Server(DASABTCP)?
New Replies:
Thanks for your reply. I'll have a look on your suggestions....
Application involving high vibration and oil/dust contamination, choosing between using internal relay contacts, external electromechanical relays, or SRRs.
New Replies:
By curt wuollet on 28 September, 2009 - 11:03 pm -
I'm right with you on the driving relays with relays issue. But I've seen it done in many places....
By M Griffin on 28 September, 2009 - 9:30 pm -
I assume that all your output loads are 120VAC. Given your concerns about reliability, I would...
Grass root project looking a cheap way of bringing groups of temperature signals that are in close proximity into a DCS
New Replies:
By David on 28 September, 2009 - 7:10 pm -
HART is an FSK signal superimposed onto a 4-20mA signal from a field transmitter. The HART signal...
>> groups of temperature signals <<
> I would think that you mean thermocouple...
The Emerson FFB 848T is a possible solution for this type of application and a good one. I use them...
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...
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...
Problem found in measures with passive magnetic sensors in a over-speed trip system.
Would appreciate recommendations for batch controllers for fuel loading
Clone to new OS with new hardware or Clone to new hardware with same OS?
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...
I am looking at using this sensor.
from the application, engineering, automation department...
Interfacing Siemens S7-300 cpu 313C with ABB's compact HMI scadaHow to interface the Siemens S7-300 cpu 313C with ABB's Compact HMI SCADA?
Some technologies have been in development for years, but only a few enjoy commercial success.
New Replies:
By M Griffin on 23 September, 2009 - 4:24 am -
If I knew the answer to all that for sure, then in 3 to 5 years I would probably be pretty rich. I...
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