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Control.com topic...
Process Control
Topic: PLCs and related questions.
from the gad trubine control system department...
moog servo valve operation
Originally posted by VK on 1 November, 2012 - 10:30 am
How does a MOOG servo valve operate?
New Replies:
Jyshen, You are most welcome....
Dear CSA, Thanks for your superb informative response. Your passion and sincerity to share your...
Topic: Continuous process industries, DCS questions.
from the Department department...
Do I Understand PID's?
Originally posted by Piedon on 17 April, 2014 - 9:58 pm
Just want to see if I understand these things.
New Replies:
A PID controller output depends on the error between the process variable PV and a target value or...
Topic: Continuous process industries, DCS questions.
from the inst department...
Gulde control valves
Originally posted by self on 23 August, 2008 - 2:07 am
Suppliers of GULDE control valves.
New Replies:
By Dipankar Biswas on 17 April, 2014 - 11:41 pm -
> Please let me know the suppliers of GULDE make control valves. We M/s Continental Valves...
Topic: Continuous process industries, DCS questions.
from the instrumentation department...
I/P positioner and I/p transducer Control valve
Originally posted by Emerson process management on 13 May, 2012 - 4:18 am
Difference between I/P positioner and I/p transducer
New Replies:
Look at the principle of operation and internal diagrams of a Bellofram Type 1000 I/P. It does not...
hi sir, I had a question why diaphragm is not used in i/p converter? why they using the bellows?...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Instrumentation cables sizing
Originally posted by Ahmed Sami on 10 April, 2014 - 7:57 am
Instrumentation cables sizing
New Replies:
Dear Ahmed Sami, Your question is incomplete I can say. Cable cross section and hazardous area...
Ahmed Sami, Choosing wire/cable for a particular application is a very involved process. Does...
Why do you sugget 1.5 mm2 cable? Does that follow any standards recommendation or calculations? ...
You Need at least 6x1.5mm (6 core cable)...
please note that for all your instrument devices you can use 3x1.5sqmm (3 core cable)....
Topic: Software, including programming, OS issues, etc.
from the INSTRUMENTATION department...
UREA FLOW METER
Originally posted by Arun Kumar on 14 April, 2014 - 4:20 pm
What type of flowmeter can be installed in a Urea duct as a source of FD and ID fan in the duct?
New Replies:
What are you measuring? Just air flow? We use a DP transmitter for our prill tower air ducts....
Topic: Engineering and workplace issues.
from the Level Control department...
Magnetorestrictive Level Transmitter issues
Originally posted by Braindead on 26 March, 2013 - 11:46 pm
Extreme vibration and loss of signal on level transmitters
New Replies:
Hi Mateus, there is only one instrument when you are working offshore on a FPSO or Platform...
Hi Sam, I am reading your comments about interface level tech for crude and water + emulsion. ...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Actuator indication and control
Originally posted by David Sutcliffe on 11 April, 2014 - 10:32 am
How to obtain indication and control from a Rotork actuator
New Replies:
Other types of actuators use two drive signals: - one signal drives the actuator 'open' - the...
please provide actuator model number and application...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Condensate pots and flow measurement
Originally posted by Karthik on 12 April, 2014 - 3:36 am
Using condensate pots for flow measurements
New Replies:
1. The purpose of condensate pots in steam flow measurement is to isolate or seal the transmitter...
Originally posted by V K GUPTA on 9 April, 2014 - 12:34 pm
Communication between SIEMENS S7-400 PLC Scalance card to Yokogawa DCS CENTUM CS3000R3
New Replies:
you need to use Siemens CS-3000 module to convert your signal to modbus TCP/IP signal and interface...
By Patrick Lansdorf on 10 April, 2014 - 2:17 am -
Hi, I am guessing that the PLC is a Profibus master... You can use a gateway, such as: ...
Topic: Continuous process industries, DCS questions.
from the How hard can it be? department...
Migrating Yokogawa Centum 3000 to Centum VP
Originally posted by DryDrive on 8 April, 2014 - 3:15 pm
Migrating a DCS system from Centum 3000 to Centum VP. Can import control drawings easily, or not?
New Replies:
> Please contact your local Yokogawa office or send a request to >...
By Elbert van der Bijl on 10 April, 2014 - 1:04 am -
In CENTUM VP the database of the old project can be imported/converted. You do not need to import...
Originally posted by Alexander Yakovlev on 9 April, 2014 - 6:28 am
Looking for electronic version of GE TILs No. 1813, 1639, 1619 and 1602
New Replies:
Thanks for the advice - yesterday I have tried to register as a member of the users group to obtain...
Alexander, as the moderator notes the "sharing" of information is a difficult and...
Topic: Continuous process industries, DCS questions.
from the Forum department...
2oo3D voting
Originally posted by amanemisa on 8 April, 2014 - 3:54 am
Explain if 1oo2D voting is just similar to 2oo3 voting for ESD system.
New Replies:
Let's start with your requirement of tripping of valve on rise of line pressure beyond high limit....
2oo3 voting is a compromise between 1oo2 (most safe) and 2oo2 (most reliable, e.g. fewer spurious...
Topic: Continuous process industries, DCS questions.
from the HC900-C70R department...
Split Range Control on two valves - HC900-C70R
Originally posted by Frederik on 8 April, 2014 - 7:45 am
Split Range Control on two valves - HC900-C70R
New Replies:
The pressure transmitter is the input to an analog input function block. Its analog value is the...
Originally posted by hatimnazir on 6 April, 2014 - 7:10 am
Honeywell Experion DCS Analog Output Card Failed. Output went to initialization states. Points analog output blocks gone inactive. Action changed for some valves in configuration.
New Replies:
Apart from this, the DCS event also shows the following: "IOM (input output module) switch...
Topic: PLCs and related questions.
from the Over the Cliff department...
Siemens S7 programming
Originally posted by Bapi on 1 April, 2006 - 5:18 pm
Siemens S7 programming
New Replies:
I take issue with this assessment. Take your example of C vs Visual Basic. There's a dramatic...
Topic: Continuous process industries, DCS questions.
from the Automation List department...
Steam flow compensation
Originally posted by Rahul P Sharma on 15 September, 2004 - 6:50 pm
What is the exact formula for steam flow compensation?
New Replies:
> Compensated Steam Flow Formula > Qc=Q*[Square Root of...
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Poll about Open Source DCS/SCADA system.
Originally posted by Robert Perez on 3 May, 2013 - 9:31 pm
Poll about if the industry is ready to start adopting open source DCS/SCADA systems.
New Replies:
<.... That said, no large company has stepped up to provide support for any of the FOSS SCADA...
Topic: Continuous process industries, DCS questions.
from the OSI vs. Aspen department...
OSI Pi versus Aspen Info Plus 21
Originally posted by holger on 6 July, 2010 - 6:22 am
Chemical company with batch processes has to decide if they buy Aspen tech or OSI.
New Replies:
By Tapas Bhattacharyya on 3 April, 2014 - 4:23 am -
The discussion about comparing the selection is very informative. To do better analysis, the areas...
Topic: Continuous process industries, DCS questions.
from the Process Automation department...
Bailey Infi90 System
Originally posted by Harsha on 20 March, 2009 - 6:10 am
Limitations of Bailey Infi90 System.
New Replies:
The only way I know to create a .NBS file is to save from controller, then look for it in the...
Topic: Continuous process industries, DCS questions.
from the Applications department...
Non-Nuclear Density Meter For Slurry
Originally posted by Austin Bell on 24 April, 2012 - 2:27 pm
Does anybody know of a non-nuclear continuous in- line density meter for slurry?
New Replies:
Has anybody tried the DM3 by Sciam Engineering? Any reviews has changed. We have a Salt slurry...
Originally posted by hatimnazir on 29 March, 2014 - 7:36 am
Series C IO Module in Honeywell DCS failed
New Replies:
Assuming it isn't something like being baked to death in a panel because the panel's...
Topic: Information resources, documentation.
from the Museum department...
Ancient Fisher control valve
Posted by Geir on 27 March, 2014 - 10:34 am
Docs for Fisher valve body EC
Topic: Sensor technologies.
from the I&C department...
ATEX Ex ic or ATEX Ex nA ?
Originally posted by Daniel on 12 March, 2014 - 11:21 pm
ATEX Ex ic or ATEX Ex nA ?
New Replies:
Hi, Normally from technical point of view it is required unification of solution. So if you use...
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Final year project using Honeywell DCS
Originally posted by AbhilashKondodi on 26 March, 2014 - 11:42 am
Is there any inbuilt SCADA Software for Honeywell DCS HC900 C30?
New Replies:
Current firmware 4.4 (or higher) HC900 controllers can use flash memory in the controller's CPU for...
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