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Applications
Topic: Continuous process industries, DCS questions.
from the Nuts department...
Cable tray separation
Originally posted by jasoin carroll on 4 June, 2014 - 1:11 pm
Is there a standard that says the highest voltage cable should go in the top or the bottom tray?
New Replies:
Jasoin... The ANSI/IEEE-Std supports your contention regarding Vertical Segregation of Data...
Jasoin... I suggest you procure: ANSI/IEEE Std 422-1986 "Guide for the Design and...
Topic: Continuous process industries, DCS questions.
from the INSTRUMENTATION department...
Differential Pressure Transmitter Calibration
Originally posted by RAMESH on 31 May, 2014 - 5:43 am
Changing the range of Differential Pressure Transmitter Calibration.
New Replies:
Tables A-1 and A-2 on pages 118-119 of the 3051 manual shows the LRL and URL range 'limits' (not...
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Instrument Tech Training Topics
Originally posted by GBrown on 29 May, 2014 - 4:50 pm
My boss has asked me to create a training program from the instrument techs that is one 3 hour course a month for 2 years.
New Replies:
Providing a list of suggested topics to your intended audience is a great technique to spur a...
Topic: Application Questions and Problems
from the Instrument department...
Adding Process values in Centum CS3000
Originally posted by zeshan ahmed on 30 March, 2014 - 12:56 pm
Tag not found error when adding process values to fcs from cs3000 yokogawa.
New Replies:
i think u have to use station to station data link transfer for tags or u can use global switches...
Topic: Engineering and workplace issues.
from the Electrical Engineer department...
VFD Speed
Originally posted by Sagar on 26 May, 2014 - 5:45 am
Over speeding a motor by reference signal even if the frequency limit has been set in the VFD module
New Replies:
Thanks Steve...
Originally posted by Alphite on 28 May, 2014 - 4:25 pm
How to control flowrate and pressure with a positive displacement pump.
New Replies:
A positive displacement pump is essentially a constant-flow device, with discharge pressure...
Originally posted by Rajesh on 2 December, 2008 - 3:43 am
Induction motor running beyond rated speed
New Replies:
I don't think speed will go beyond rated speed if we have already fix the limit in the VFD....
Topic: Application Questions and Problems
from the Automation List department...
Can Siemens PCS7 be considered as a True DCS?
Originally posted by Dr. R. Murugesan on 24 March, 2007 - 10:17 am
All the Vendors claim their offering is a true DCS and 'can perform the assigned role'...
New Replies:
Hi every one (I am fresher fellow) I read all the above posts but still i could not conclude...
Topic: Power generation equipment control.
from the ABB Advant department...
ABB OS500 upgrade
Originally posted by Will P. on 5 March, 2014 - 5:46 pm
ABB OS500 upgrade to newer version HP B2600
New Replies:
I did backups that way for years and it worked when needed. But there are programs such as G4L...
Topic: PLCs and related questions.
from the Forum department...
Modbus TCP to PLC using vb.net
Originally posted by Steve Sodzi on 7 May, 2010 - 10:30 am
visual basic code to write to a Schneider Premium PLC via TCP. The only problem is that i cannot read the response back from the PLC.
New Replies:
By martijn pijpers on 16 May, 2014 - 7:06 pm -
> My dll can do all of this and it's free. It's called Shortbus. Look up "shortbus modbus...
Topic: Engineering and workplace issues.
from the serious department...
TXP control system administration
Posted by mhmd on 16 May, 2014 - 5:44 pm
is there a way to take an image of ES, PU, SU, OT, without using SCSI tape reader
Topic: Engineering and workplace issues.
from the Critical classification department...
PLC in Class 1 Div 2, cooling options
Originally posted by I&CAdvisor on 1 August, 2013 - 4:44 pm
are cooling options available for panels in Class 1 Div 2 areas?
New Replies:
Hello, these are even better enclosure coolers: Check out these guys...
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:
http://turbocontrol.com/gnuroot.htm I just updated the page above with a new example that opens...
>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...
Topic: Local and wide area networking in factory automation.
from the AKH department...
4-20 ma HART Transmitter
Originally posted by gct on 7 May, 2014 - 4:10 pm
HART transmitter showing only 4 ma or 3.9 ma but it should show 12 ma as per process variable indicated in HART communicator.
New Replies:
Adding to David It could also be the loop is not set up with the proper Voltage or load. It...
Without knowing what the function of terminals 1, 2, 3 and 4 are, it's not possible to determine...
Originally posted by Anonymous on 3 December, 2005 - 6:29 pm
what kind of electrical CAD software is most used by you guys?
New Replies:
Hi, I find WSCAD software is very good, its easy to learn and easy to use! Its not overladed as...
Topic: Continuous process industries, DCS questions.
from the Forum department...
pulse scale factor
Posted by Hoo on 8 May, 2014 - 3:41 am
pulse scale factor
Topic: Software, including programming, OS issues, etc.
from the Modbus connectwith android using TCP department...
Modbus connect with Android via TCP
Originally posted by Sabarreesh on 6 May, 2014 - 4:17 am
we can connect android APP with modbus simulator (mod_RSsim.exe) using socket connection. but we couldn't write and read values from registers using functions from "jamod-1.2-SNAPSHOT.jar".
we got output like this 00 00 00 00 00 06 00 03 00 00 00 00
New Replies:
Hi, I suggest to you a freeware software for communication with Modbus TCP/RTU devices. It is...
Topic: Engineering and workplace issues.
from the Instrumentation Department department...
Multihole orifice plate
Posted by Asok Kumar Hait on 6 May, 2014 - 11:20 am
User experience in use of multihole (conditioning) orifice plate
Topic: Application Questions and Problems
from the Damper control department...
Generator damper control
Posted by Luap on 1 May, 2014 - 8:22 pm
Changing from pneumatic damper control to electronic damper control
Topic: Application Questions and Problems
from the Forum department...
DCS Clock Malfunction
Posted by Muthu on 1 May, 2014 - 1:07 pm
Can the malfunctioning of the GPS clock trigger the ESD bits and shutdown the running plant?
Topic: Power generation equipment control.
from the Forum department...
Transformer Multiple Grounding
Originally posted by Jack on 27 April, 2014 - 8:36 pm
Paralleling Transformer earthing connection
New Replies:
Why use single grounding? My first thought would be because that's what the customer wants. ...
Topic: The Business of Automation and Control
from the Automation List department...
JimPinto.com eNews 25 April 2014
Posted by Jim Pinto on 24 April, 2014 - 8:24 pm
The latest JimPinto.com eNews is on the web
Posted by rizki on 23 April, 2014 - 12:55 am
help me to connect Vijeo citect and unity pro xl
Topic: PLCs and related questions.
from the Forum department...
Yokogawa error message
Originally posted by Nacer on 8 August, 2011 - 10:09 am
Yokogawa error message
New Replies:
You've basically created a tag without it being registered in the taglist. This can be done if you...
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...
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...
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.
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