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Today, Monday, March 15, 2010
Pneumatic Control Valve Calibration
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By Jonas Berge on 15 March, 2010 - 11:36 am -
What is the exact problem?
What aspect of the positioner are you trying to calibrate?
- input...
By Roy Matson on 15 March, 2010 - 11:00 am -
Amer,
Sometimes the control valve positioner is not linear travel wise i.e. 50% signal...
By Mike on 13 March, 2010 - 4:42 pm -
If I was in your position, First thing I would do is located the manual for the control valve you...
I know, but if I need to program the control valve to be full open when it reaches to 60% of the...
By Roy Matson on 12 March, 2010 - 1:26 pm -
You shouldn't need to use a HART communicator. A mA source is what you need. Start the stroke at...
What is the different between float and displacer level measurement
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By Roy Matson on 15 March, 2010 - 10:52 am -
A float does just that, it floats on top of a liquid following the surface up and down.
A...
http://www.iceweb.com.au/Technical/LevelTechnologies.html...
Developing a pilotless dc vehicle - which will follow a
magnetic tape on ground.
magnetic tape on ground.
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Using PLC for control BLDC motors isn't good idea due to necessity to commutation of motor and use...
Ladder logic simulator software portable
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http://www.plcsimulator.net/
Register first and then start programming.. You can even save your...
ABB AC800M controllers.
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Thank you again.
Regards,
Phineas....
'they also claim it has to be done on site while connected to the 800xa via an engineering...
John,
Thank you for your comprehensive and highly informative answer.
Luckily, I have...
"It seems that downloading to a network of AC800's, the download software distributes the...
How does a vendor reach the final pricing of a particular service for DCS and for a whole service contract?
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By Amit Anand on 15 March, 2010 - 5:12 am -
Thanks a lot Sudeep.
The % of list price may vary from 5% to 30% for support services (if I am...
How do I calculate the average value of the wind direction when 0° and 360° are the same?
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Hi Ville!
Try to trap 360 value and output it as 0 so to make your average correct. Just add...
By Robert Scott on 13 March, 2010 - 5:53 pm -
Sorry, alex001, your C program does not solve the problem. To see that it does not work, just feed...
By alex001 on 13 March, 2010 - 7:12 am -
I've written the following program in C.
Can you tell me if it works correctly for your problem?
...
Creating homegrown PLC hardware
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By curt wuollet on 14 March, 2010 - 4:37 pm -
> According to Atmel's web site, it includes:
>...
By M Griffin on 13 March, 2010 - 10:31 pm -
With regards to compilers: gcc-avr is in the Ubuntu (and therefore I imagine Debian) repositories -...
By M Griffin on 13 March, 2010 - 9:55 pm -
There are several different Creative Commons licenses. For all of them however, I don't think there...
By curt wuollet on 13 March, 2010 - 1:02 am -
Hi all
Request for comments on releasing the design under a Creative Commons license.
...
By curt wuollet on 12 March, 2010 - 9:50 pm -
What i find really interesting is the low threshold to being in the embedded Linux game. Even...
By M Griffin on 12 March, 2010 - 5:26 pm -
The AVR board looks like it would do the job for a Modbus/TCP interface, provided it works with the...
from the Moving from Ruby to Structured Text department...
Global type declarations, Beckhoff TwinCATHow does one declare a global type declaration using TwinCAT?
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By Roger Christopher on 14 March, 2010 - 3:17 pm -
Click on the Data Types tab in the left pane of the editor, then define your structures, enums and...
Got a malfunction in a magnetic pickup in flow divider
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By mksod on 14 March, 2010 - 12:00 pm -
Dear CSA
Thank you very much...
You need to jumper a good pick-up to <S>'s input after you disconnect the wires of the bad...
About how to put operator log action messages as events.
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"I observed that when operator stops an equipment a event log is generated at same time the...
Any provision to consider for connection of stainless steel tube of instrument tap to carbon steel block valve?
Looking for documents and programming information for ASPLA ICS
generator responds after load shedding
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It seems you are asking what happens when a generator and some load (the "island") are...
C Code for enabling serial port in powerpc440ep
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This class for serial communication works on many different operating systems.
...
By M Griffin on 12 March, 2010 - 4:24 pm -
I assume you are using Linux or something similar. Just type "linux serial port c code"...
To upgrade or to substitute the PANEL Mark V
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It's presumed since you posted in a Mark V-related thread that you are looking for Mark V...
By Muadz on 13 March, 2010 - 8:13 am -
Hi,
My company is looking to purchase OEM parts for GE Nuovo Pignone frame 5 to keep as spare...
Problem with TSX Premium MODBUS TCP messaging not solved
What is duplex thermpcouple wire. Is it related to duplex sensor thermocouple.
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By Carl on 13 March, 2010 - 1:53 pm -
Yes, duplex wire is similar to duplex elements. Duplex wire has two pairs of T/C wire for...
How can I reliably measure sodium hydroxide (50%) density online.
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By Carl on 13 March, 2010 - 1:51 pm -
refractive index is used to measure flowing concentration of NaOH. See K-Patents' app note at
...
By Dave Ferguson on 12 March, 2010 - 5:53 pm -
Funny how things work. I just started up a caustic plant this week that makes down 50% sodium h to...
Thanks All.
In our process we are diluting raw caustic from 48% to 23%....
I cant recover safety mode after a download in Delta mode to Siemens PLC.
from the Automation List department...
Receiving data from a weighing scale using RS232 with VB 6 AppI have a digital weighing scale I need to connect to the PC using RS232 communication port.
how to start programing in Simatic s7
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By Jan on 12 March, 2010 - 7:48 pm -
Hello Eslam
Visit website "Controlwiki.com"
Select "PLC Archive"
Select...
Siemens Step7 with PID SIMO (single input, multiple outputs)
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By Jan on 12 March, 2010 - 7:16 pm -
Hello Mr./Mrs. Noname
Send me a mail.
I think I can help by sending you a small program for...
The Siemens S7-1200 PLC
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I've spent some project time working with one of these. I really like the way that Step 7 Basic...
i have an 800foot run of #12 rwu wire to be run to feed an 120 100 va transformer. is this adequate wire size
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By Phil Corso on 12 March, 2010 - 5:12 pm -
Electric... voltage-drop and conductor-loss are 2.67-V, and 2.22-W. respectively.
If you want...
By M Griffin on 12 March, 2010 - 3:55 pm -
Try the following links for information on calculating voltage drop.
...
By Bill on 12 March, 2010 - 1:18 pm -
800 ft of #12 wire, single phase, will have voltage drop of approximately 2.7 volts/ampere....
Can we force cool a single shaft
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You need to get procedure and recommendations from GE. This would likely involve operating the unit...
Need some help with a controls problem...
transfer the Array of structure through MODBUS TCP
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By M Griffin on 12 March, 2010 - 4:07 pm -
You won't be able to send all of that in one message, as it would take too many registers to fit....
Need help in finding a way to read alarm messages from the foxboro dcs using my application
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