Select Page: Previous 1 2 3 4 5 6 7 8 9 10 11 Next
Control.com topic...
Process Control
Topic: Continuous process industries, DCS questions.
from the control and instrumentation department...
flame scanner
Originally posted by danesh simmry on 11 December, 2009 - 12:18 pm
we have bottom fired boiler and in every boiler 2 scanner is installed.
the furnace oil are snagged in the orifice head and also in the head of the scanner. so the scanner wont be able to work for a long time.
New Replies:
we are used the model- 85 IR F3-1 EX Regards, Danesh...
Originally posted by krk on 26 February, 2010 - 6:18 am
Advantages of historized process tags in History module over PHD (plant historian database) for panel operators monitoring purpose.

New Replies:
What Rudi said. Basically, if you have a reliable PHD or any similar current historization...
We are on R534 with US's only, so our issues may differ from yours, but... 1. HM data can be...
I don't understand your argument about a time delay for PHD tags. You can have PHD scan your tags...
Topic: Power generation equipment control.
from the Operations department...
Gas Turbine Function
Originally posted by Maatallah on 4 March, 2010 - 6:52 pm
Video on gas turbine function
New Replies:
I don't have any links, but there are companies around the world that sell training videos about...
Topic: Continuous process industries, DCS questions.
from the Automation List department...
Honewell C200 and ControlLogix
Originally posted by Sameh on 19 October, 2007 - 3:33 pm
I want some detailed information about the relation between Honeywell C200 and Allen Bradley ControlLogix...
New Replies:
C200 & ControLogix use the same protocol CNI and backplanes may be exactly same. YOU CANNOT...
I have to believe this is AB I/O going into a Honeywell Chassis, as AB I/O is considerably more...
Originally posted by Vishvesh on 4 March, 2010 - 2:59 pm
Engineering Repository Data Base structure for Honeywell-Experion DCS
New Replies:
Hi Use Bulk Build/Bulk Edit tools in control builder. Use xml exports in control builder. ...
Topic: Continuous process industries, DCS questions.
from the Forum department...
calibration of pnumatic control valve
Posted by Amer 111 on 5 March, 2010 - 1:10 am
Searching for a documented procedure for doing calibration on fisher pneumatic vales detailed in steps and photos.
Topic: Continuous process industries, DCS questions.
from the Forum department...
Hydrocarbon gas fiscal accuracy
Originally posted by ARFP on 16 February, 2010 - 9:23 am
Accuracy required for gas custody meter
New Replies:
If you are measuring a type of refinery fuel gas, the AGA8 method can be used (same as API 14.3). ...
Better is the best, generally based on API guidelines linearity of +/-0.15% of reading with...
Topic: Continuous process industries, DCS questions.
from the Instrument department...
Draught Gauges
Posted by Logu on 4 March, 2010 - 1:33 am
why and when the "Draught Gauges" are used in refinery industries
Topic: Continuous process industries, DCS questions.
from the Forum department...
Moog 770 144 I/H Actuator
Posted by Symphony on 4 March, 2010 - 1:21 am
searching a MOOG 770 144 Current to Hydraulic Converter
Topic: Sensor technologies.
from the Automation List department...
Coal Bunker level measurement
Posted by Tarun on 3 March, 2010 - 11:34 pm
looking for better technology for coal bunker level measurements
Originally posted by WilliamKF on 2 March, 2010 - 8:25 pm
When I have a PID loop to control a process where there is a delay between setting a value and when it can be seen to have an effect, which of the three inputs adjusts for that?
New Replies:
This is software based controller to control the rate of packet transmission for network. The...
To the extent that delays in feedback and PID loop processing get smaller, the better off you are....
First of All is it your PID loop controller is --> PLC Based or --> Electronic...
You are talking about dead time. I am assuming you are talking about independent gains so the...
Topic: Engineering and workplace issues.
from the Instrument department...
Thermocouple Cables
Originally posted by Logu on 3 March, 2010 - 4:34 am
What is use of compensation cables in thermocouple
New Replies:
control.com has this really neat feature called 'Search'. I actually typed 'thermocouple...
Assuming you really mean thermocouple extension cables: You need to understand how a...
Topic: Engineering and workplace issues.
from the Need to be sure we have a non leaking sy department...
Leak testing Procedure for new beverage Stainles steel Process Pipework
Posted by Mickb on 3 March, 2010 - 2:07 pm
We have a new Process system consisting of several new Tig welded Stainless Steel pipe runs. The Process is for soft drinks

Topic: Continuous process industries, DCS questions.
from the Forum department...
Exact Purpose of Positioner?
Originally posted by M Soundarvel on 27 February, 2010 - 1:49 am
Imagine a Flow Control Valve without positioner. Exact Purpose of Positioner?
New Replies:
I would like to add a few things. Since the control valve and actuator are mechanical elements,...
This is an old argument - Do you need a positioner on a control valve? For accurate flow control...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Controlling Hopper level via VSD/VFD
Originally posted by gao on 3 February, 2010 - 9:09 am
improve control of a hopper used for holding a powdered material
New Replies:
You may program the VFD if option is provided for two speeds operation. Which is usually given in...
Check your filtering time or your ramp down/up time....
Topic: Continuous process industries, DCS questions.
from the Electronics abd Instrumentation department...
GAS Totalizer
Originally posted by Abdul Ahad on 2 March, 2010 - 12:15 pm
Why we used the temperature sensor for Gas totalizer
New Replies:
Volume is directly Proportional to Temperature. Suppose you are measuring same volume for a gas...
Topic: PLCs and related questions.
from the Trying to block IP addresses department...
Using a Router with A-B PLC's
Originally posted by Tom on 27 February, 2010 - 3:52 pm
Can you use a router (Linksys BEFSR81) to filter IP addresses between PLC's that are networked together?
New Replies:
Thanks, but I couldn't get it to work using these ports. I thought I might be able to at least see...
Tom I think you'd better use hub switch from cisco rather than router then configure the switch...
Tom, For EtherNet/IP protocol communications, the C*Logix uses TCP Port 44818 and also UDP Port...
Originally posted by BigTom209 on 17 February, 2010 - 7:28 pm
Experiencing odd problems with the ratcheting gear
New Replies:
Well I've learned a fair bit just by studying the schematic, reading what limited info we have on...
You seem to have obtained a good deal of information from the self-sequencer designer that would be...
Dear all, "Expect the unexpected." Refer to www.control.com/thread/1236334463. ...
In reply to CSA: You asked why I don't have Flash installed. The reason is simple. There little to...
Thank you, M. Griffin! I tried several substitutions, but didn't think about the good old...
http://s29.photobucket.com/albums/c267/BigTom209/?action=view&curr ent=2-18-201011-30-23PM.flv ...
In reply to CSA: I suspect the video URL problem is a character encoding problem. Microsoft uses a...
The clarification should help you a lot. If it's not the turbine side of the clutch that's...
Topic: Power generation equipment control.
from the steam turbine control department...
Steam Turbine IPC
Originally posted by sd on 18 February, 2010 - 9:30 pm
IPC and Load Control doubts for GE steam turbine running on Mark V
New Replies:
Thanks Juan. Will check on that should the same problem come back. Hopefully it doesn't ;) ...
Topic: Continuous process industries, DCS questions.
from the Vertical Orifice Plate department...
Vertical Steam Flow Measurement with Orifice Plate
Originally posted by SG on 13 December, 2005 - 10:34 pm
Does anyone have experience/knowledge of measuring saturated steam flowing vertically down using an orifice plate?
New Replies:
Averaging Pitot Tube or ACCELABAR could be an alternative technology to be deployed against Vortex...
Topic: Continuous process industries, DCS questions.
from the Hour Meter department...
Hour Meter with comms
Originally posted by Miguel Zepeda on 26 February, 2010 - 12:44 pm
Hour meter that have some sort of output to send to PLC or via comms
New Replies:
I haven't seen a self-powered hour meter like that, and I have looked for them in the past. If they...
Yes, I know that you say is better and more practical, but my customer wants that the other way,...
Why not just have the PLC keep track of the hours and drive a small serial display if you don't...
Select Page: Previous 1 2 3 4 5 6 7 8 9 10 11 Next
 
 

Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2010 Nerds in Control, LLC. All rights reserved.

Users of this site are benefiting from open source technologies, including PHP, MySQL and Apache. Be happy.


Fortune
Writing about music is like dancing about architecture.
-- Frank Zappa
Advertise here
Advertisement
our advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive