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Control.com topic...
Process Control
Topic: Power generation equipment control.
from the Forum department...
Gas turbine control
Posted by Bita on 12 April, 2013 - 12:04 pm
Gas turbine fuel control
Topic: Engineering and workplace issues.
from the Forum department...
24VDC power supply fuse protection
Originally posted by Sakram on 6 April, 2013 - 3:39 pm
24VDC Floating power supply fuse protection.
New Replies:
I have seen power supplies ungrounded with a pair of lamps Positive - lamp - ground - lamp -...
Dear Russ, Thanks for your reply. We are extending (+) to field limit switches and connecting...
I use branch CBs to isolate the 24 VDC from its load but that is not "protecting" much of...
It's bad practice to run your 24VDC ungrounded. I've seen it cause not only inexplicable bizarre...
Topic: Continuous process industries, DCS questions.
from the I&C department...
custody flow meter
Posted by ars1981 on 10 April, 2013 - 5:44 pm
custody flow metering
Originally posted by praveen on 7 April, 2013 - 3:35 pm
Temperature compensation for density variation of air in hydrostatic measurement
New Replies:
Why are you so against adding some air to maintain the level? To keep it simple use a simple...
FYI, a year ago, maybe two years ago, a forum topic involved diminishing air pressure in a closed...
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Release dates of DCS
Posted by tq_ice on 8 April, 2013 - 5:08 pm
Age of DCS systems
Topic: Information resources, documentation.
from the can a dream become true? department...
Advice on how to reach Oil & Gas industry
Originally posted by Rafluska on 6 April, 2013 - 7:27 am
I'm trying to find a way to go to work on an Oil plant.
New Replies:
Thank you for your feedback Dan it helps for sure, especially the connection between assembler with...
Hi Rafluska, Your background in AI and high-level languages (HLL) doesn't handicap you. If...
Topic: Power generation equipment control.
from the Doubts department...
AVR prismic a30
Originally posted by A man who want to learn on 23 March, 2013 - 9:16 am
Standby card leds 1 and 2 has been switching on AVR Prismic
New Replies:
By Sebastian Rebord on 5 April, 2013 - 1:27 pm -
When the AVR is operating in main and the balance with the standby is OK, LED1 and LED2 have to...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Transfer Function of a Solenoid Valve
Originally posted by Declan Flynn on 25 March, 2013 - 11:58 am
Looking for a transfer function for a solenoid valve which regulates the quantity of steam that is provided to a heat exchange coil
New Replies:
Sebastian is right... i should have double checked my logic and math before i submitted that one......
By Sebastian Rebord on 5 April, 2013 - 11:32 am -
Declan, As NIC said the easiest way is consider the transfer function as a first order delay...
Declan, The easiest way is to assume that the model just involves a simple time constant....
The Valve I am looking at is a proportional valve (control valve) where the output flow is...
Thanks for the reply, I will obtain more information on what type of valve I am looking at and will...
Well, usually the transfer function for a solenoid valve is: On: 0% Off: 100% ;) A...
Originally posted by khan on 5 April, 2013 - 7:54 am
I need some help with selection of air velocity and temperature sensors & actuators that will work on hard environmental conditions inside the air-duct.
New Replies:
Hi, For temperature sensor, it should be kept in mind that high air speed and that too with sand...
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
Pilot Operated Deluge Valve
Originally posted by RM on 25 March, 2013 - 8:53 pm
Pilot Operated Valve
New Replies:
Pneumatically Operated Deluge Valve: Simulate the Low Pressure in the Fusible Line by draining...
anyone?...
Topic: Power generation equipment control.
from the Forum department...
vibration in GE Frame 6
Originally posted by Ridha on 18 March, 2013 - 5:20 am
vibration in GE Frame 6 after major overhaul
New Replies:
Ridha, Thanks for the feedback! I'm currently on a re-start of a GE-design heavy duty gas...
Dear CSA, As you previously predict the cause of the vibration was a misalignment. Lot of...
Hmmmm..before the outage/shutdown, was this a controlled shut down? How much run time has been...
Dear CSA, Thank you for the attention you give to this subject. From my side I Strongly...
Ridha, > -The problem is that the vibrations were also measured using an external >...
Posted by Rohit on 29 March, 2013 - 7:33 am
What are the ways available to integrated Siemens S7417 controller with PCS 7 system to Honeywell EPKS system with C300 controllers.
Topic: Continuous process industries, DCS questions.
from the Forum department...
Calibration Training
Originally posted by Cheryl Hamilton on 27 March, 2013 - 12:35 pm
Looking for calibration training beyond the basics.
New Replies:
That would probably be a Metrology course Beyond the basics, every device is different. Regards ...
Topic: Continuous process industries, DCS questions.
from the Market department...
alstom p320 software manual
Posted by peter on 27 March, 2013 - 9:15 am
who can help us? we need the LEA instruction manual for alstom p320.
Topic: Engineering and workplace issues.
from the Level Control department...
Magnetorestrictive Level Transmitter issues
Posted by Braindead on 26 March, 2013 - 11:46 pm
Extreme vibration and loss of signal on level transmitters
Topic: Human-Machine Interface and SCADA.
from the looking for a worthy successor department...
Has Wonderware Intouch had its day ?
Originally posted by Matt Anderson on 8 June, 2011 - 4:56 am
Intouch user of many years has had enough and needs to find a suitable replacement
New Replies:
By Christopher LaFavers on 26 March, 2013 - 10:17 pm -
I've found ClearSCADA to be a great product. Licensing has a great price structure for my smaller...
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
Emergency shut down system for process plant
Originally posted by nirav on 19 December, 2012 - 1:17 am
As per my knowledge for ESD system is always implemented through PLC is there any particular safety reasons for that?
New Replies:
ESD system should be separate and integrated with your DCS system. ESD system can be hardwired sil...
Topic: PLCs and related questions.
from the serious department...
Mark VI - VCMI Board Replacement
Originally posted by Fausto on 23 February, 2010 - 9:59 am
Mark VI not working with a VCMI board replacement!!
New Replies:
Dear Fausto You may use the following procedure Replacing a VCMI To replace and reload the...
Originally posted by Anthony Murray on 19 March, 2013 - 10:09 am
This is a survey aimed specifically at automation/control engineers in relation to security for industrial control networks
New Replies:
I would like to get a copy of the results. I wanted to reiterate Walt's point that your questions...
Topic: Engineering and workplace issues.
from the INSTRUMENTATION department...
Measure boiler level
Originally posted by sanjib on 21 September, 2010 - 12:11 am
have to measure boiler drum level of 500 mm
New Replies:
Dear, I am measuring the drum level 0-920mmWC. My transmitter range set is +620 to -320. So, the...
Topic: Continuous process industries, DCS questions.
from the automation department...
Drum level control by two element
Originally posted by atish on 11 March, 2013 - 4:53 am
What is cascade control & explain two element in simple language?
New Replies:
By RISHI THANKS NEED MORE HELP on 22 March, 2013 - 4:37 am -
Dear Thanks for imdt reply. we belongs to filed of plc programing & basic faculty is...
In case of drum level control a. Single element control - Drum Level as input' b. Two element...
Topic: Continuous process industries, DCS questions.
from the stop the real nerd department...
Electrical wiring color code standards
Originally posted by Larry Grayson on 3 August, 2004 - 4:05 pm
Looking for color standards for control wiring.
New Replies:
Did you ever get an answer? This is the standard I inspect for, if the client(AHJ)does not have...
Topic: Continuous process industries, DCS questions.
from the DCS department...
Yokogawa CS3000 engineering stations.
Posted by Vipul on 21 March, 2013 - 9:14 am
In Yokogawa CS3000, if DCS engineering station 164 and its partner fails, is it possible to restart another stations?
Topic: Sensor technologies.
from the Forum department...
Bearing Temperatures
Originally posted by Owais on 5 March, 2013 - 2:21 am
Bearing Temperatures hunting
New Replies:
There may be various reasons. Some of them are listed below 1. Improper grounding of system: The...
Topic: Continuous process industries, DCS questions.
from the instrumentation department...
Instrumentation Books
Originally posted by allenbradley06 on 16 March, 2013 - 4:22 pm
Can you recommend a book about instrumentation and process control in a petrochemical plant and oil and gas
New Replies:
As a book author I fully agree with Walt regarding the pirating of copyrighted material. It takes...
By Gerald Beaudoin on 20 March, 2013 - 8:19 am -
Right on Walt....I know that not everyone shares this point of view. but as a consumer of any...
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