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Applications
Topic: Motion control, servos, steppers, etc.
from the Power Electronic Engineering department...
Medium Voltage Drive Variable Frequency Drive
Posted by Mahesh Thapaliya on 15 April, 2014 - 2:26 am
Application of Medium Voltage Drive in industry to save energy, obtained desired output
Originally posted by Mik on 16 September, 2009 - 6:34 am
Turbo-generator response to changes in the power grid frequency.
New Replies:
Dear All, I am working on Hitachi Gas Turbines and Shin Nippon Steam turbines. There are three...
Dear mik, Droop is a function in the turbine controller to help controlling frequency on the...
Topic: Software, including programming, OS issues, etc.
from the Annoying Exceptions department...
Negative Acknowledge and Bad Karma
Originally posted by Julie in Austin on 18 February, 2012 - 2:05 pm
How do you feel about security exceptions not being, you know, informative?
New Replies:
> What product are you working on, and are there any other security enhancements you are making?...
> Wait....when Digi hires you, you'll STOP writing code?? Digi -- don't hire Julie! No, Digi...
Topic: Information resources, documentation.
from the Fire & Safty department...
MICRO 1-EV Board
Posted by Ravi on 8 April, 2014 - 7:00 am
Searching for MICRO 1-EV board or for an alternative.
Topic: Application Questions and Problems
from the snoozing while computers control. department...
Missing flight 370 is a control issue
Originally posted by MCC on 18 March, 2014 - 7:05 am
Long haul pilots today...program the flight management systems and snooooooooze
New Replies:
SOE Multatuli. Squence of events. 1) Altimeter readings incorrect: ...
AP. Asiana wrote in the filing made public by U.S. accident investigators that the Boeing 777...
I wonder! If units for scale entry (Ft/Mt/Km)into the FMS was correct, If applicable. Using the...
>>>> Is it not possible the aircraft could have flown into the ionosphere? > It...
> Why is this question not asked.. > Is it not possible the aircraft could have flown into...
it is certainly not the first passenger craft to be lost under similar circumstances What is...
Topic: Motion control, servos, steppers, etc.
from the Clueless but competent. department...
Building a Servo Hydraulic Multi-Actuator System
Posted by Dan on 4 April, 2014 - 1:47 pm
Two technicians are going to build a Servo-Hydraulic Actuator System (As a hobby, this is not commercial). Looking for possible suppliers of used components.
Topic: Application Questions and Problems
from the Automation List department...
Why the Need for Bias in Proportional Only Control?
Originally posted by Roy on 2 July, 2003 - 10:50 pm
Can anyone advise me on why in a Proportional only control, we need to add a Bias term?
New Replies:
The equation you presented gives you the answer: "The equation for "P" only...
Think of it as "poor man's integral". For one specific value of load, you can control to...
you can decrease P controller error offset by adding additional signals from process disturbance to...
Topic: Application Questions and Problems
from the Instrument department...
Adding Process values in Centum CS3000
Posted by zeshan ahmed on 30 March, 2014 - 12:56 pm
Tag not found error when adding process values to fcs from cs3000 yokogawa.
Originally posted by John on 26 March, 2014 - 8:33 pm
If dissimilar metal contact is not a good practice, how come instrument SS tubes are usually directly connected to CS process piping?
New Replies:
I am not a metallurgist, but I did sleep at a Holiday Inn once. The difference between Cold...
Topic: Software, including programming, OS issues, etc.
from the R&D department...
IAR Embedded Workbench software
Posted by Prem Sanil on 27 March, 2014 - 3:36 am
Working on Kiel version 4 - get message saying type qualifier on return type is meaningless.
Topic: Application Questions and Problems
from the Forum department...
Android touch panels
Originally posted by dex on 13 June, 2013 - 8:52 am
Best Android touch panels with IP protection
New Replies:
>What is the ultimate goal for this? Since you mentioned C# please see my response (the 6th...
What is the ultimate goal for this? I have broken down and run embedded windows for the HMI on some...
Running a linux x11 GUI app on an Android device may have just gotten a lot simpler! GNURoot has...
I just added a bit more information (and a few links) to this page that I mentioned several days...
>> Out of curiosity, why do you avoid using Android? Android (and iOS) is *much* more...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Control valve Placement
Posted by instrumentguy01 on 21 March, 2014 - 4:22 pm
correct control valve placement
Topic: Application Questions and Problems
from the Automation List department...
Wire marking methods
Originally posted by Joe Manns on 13 October, 2002 - 10:31 pm
A local panel shop is constructing a small water tower control panel for me...
New Replies:
Like the other comment, I also came across this while doing a google search and found it very...
Topic: Programming languages.
from the Forum department...
Programming Language for Modbus + HMI
Originally posted by Christopher Bärwald on 27 February, 2014 - 12:22 pm
Which language is best to learn for making windows applications to view/trend/make HMI for modbus signals.
New Replies:
There are multiple advantages of using the most recent platforms and tools: .NET framework, LINQ,...
> (A) Sounds like a job for pvbrowser. Thanks for hinting to our project. In pvbrowser you...
(A) Sounds like a job for pvbrowser. (B) If you really insist on writing it yourself it...
Hello, Maybe it is the cost/feature set that has you against a commercial HMI. I assume your...
I was faced with this same question many years ago and I elected to write I/O DLLs via Visual C++...
Topic: Application Questions and Problems
from the instrumentation department...
flow control valve
Originally posted by rdiazf on 12 March, 2014 - 1:13 pm
Low cost valve for water flow control
New Replies:
Or you can use a fixed orifice and control pressure. Or have the low limit a constant flow and...
Use 4 solenoid valves sized in a ratio of 1, 2, 4 and 8. By combining different valves you can...
Dear Rdiafz, You can purchase a control valve from Annu Valve Products, Ahmedabad, India. I...
Technically, time proportional control is proportional control and typically much simpler than...
> You could use a solenoid valve and control duty cycle if there's enough mixing. Thanks...
I have a lot of experience with industrial flow control valves, but in our industry they are rated...
You could use a solenoid valve and control duty cycle if there's enough mixing. Not using the PLC's...
Topic: Computers in manufacturing; also hardware discussion.
from the Instrument department...
CS 3000 yokogawa error 11186
Originally posted by Mrr on 5 June, 2011 - 3:22 am
Can not download to fcs from cs3000 yokogawa.
New Replies:
Well all the replies are some what right. But one more problem could be due to the trailing time of...
Originally posted by eep on 11 March, 2014 - 2:02 am
Converting the analog signal such as 4-20ma,0-10V to rs232/rs485
New Replies:
If all you need is monitoring functions, we've had success with the Advantech ADAM-4000 series...
Get a Koyo Click from Automation Direct. Up to 36 channels of analog + RS232 and RS485 built in...
Topic: Power generation equipment control.
from the Forum department...
firing temperature calculation
Originally posted by sheila on 17 March, 2009 - 6:20 am
GE gas turbine firing temperature calculation
New Replies:
GTT, I did not get a chance to download the file. I've since been told there is a newer revision...
Dear CSA, I want to know what was reply (later on to the question) of this message. I don't see...
Topic: Continuous process industries, DCS questions.
from the Automation List department...
Control valve positioner
Originally posted by Hemanth on 8 March, 2007 - 10:56 pm
I would like to know the operation of positioner.
New Replies:
One problem i'm facing calibrating with DVC6200 is when the valve is set to fully closed, there are...
Topic: Application Questions and Problems
from the Contactor Evaluation department...
Which contactor brand?
Originally posted by JEIC on 25 February, 2014 - 7:21 am
How would you rank side by side the main contactor brands?
New Replies:
Contactors could be used as a perfect example of a commodity in an economics class. Eaton,...
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