Posts from...Today, Tuesday, September 2, 2014
from the High School department...High School Math - How is this used in the real world?
My high school students ask when/how/if abstract topics like polynomials, factoring, rational functions are ever actually used in the Real World. I don't know..maybe you do?
By pvbrowser on 2 September, 2014 - 6:23 am -
Back at university i learned control engineering. You need to be familiar with the frequency...
By Curt Wuollet on 1 September, 2014 - 7:21 pm -
Thermocouple linearization is a good example. They are cheap, they are sensitive, they require a...
The behaviour of a car's suspension system - in terms of bounce period and damping - are given by...
By CuriousOne on 31 August, 2014 - 7:53 pm -
Thank you for making me aware of tinyurl....
By Peter Nachtwey on 31 August, 2014 - 4:57 am -
> I bet people on this forum do all the time (even if they don't realize they > learned the...
shortened URLs for the thermocouple polynomials above Thermocouple polynomials ...
By CuriousOne on 30 August, 2014 - 5:56 pm -
Anything that is non-linear must have a equation that represents it or we cannot find the limits to...
By CuriousOne on 30 August, 2014 - 11:10 am -
Thermocouples are widely used in industry to measure temperature. In order to control temperature,...
from the Forum department...Running Analog Signal
I need help with running analog signal alongside some 110 lines
By Sam on 2 September, 2014 - 5:58 am -
The shielded, twisted pair cable is a must since that will help prevent any electrical induction....
from the maintenance department...Gas Turbine Cannot Reach Minimum Operating Speed for Complete Sequence
Gas turbine HP shaft speed does not reach minimum operating speed
from the Mechanical department...Initial Torque Required for Gas Turbine
How to calculate the initial torque required by gas turbine
from the Electrical department...Isolated Generator and Droop Governor
Can an isolated generator use droop governor?
Manoj Dubey, Hmmm..... Seems someone didn't like my response. Let's assume the turbine was...
Sir, The answer to the question: Would the generator set (prime mover and generator) trip on...
By Manoj Dubey on 30 August, 2014 - 3:04 am -
Sir, from above explanation I have understood that steam or fuel inlet will be constant to...
from the Forum department...Siemens Statement Help
Converting a Siemens S5 program to ladder and need help with a block.
By Eddy on 1 September, 2014 - 1:47 pm -
Follow conversion in STEP7 Ladder.
T36 Q47.1 I62.4 F18.7 ...
from the Siemens/Schneider/Beckhoff or other?! department...New to the motion world
Hello I have a new project with 11 axes of motion (Servos) and need advice on one of three options.
By raph_rf on 1 September, 2014 - 12:54 pm -
Hi paolo it's for Pick and place (Handling) machine. We have a 3 axis robot arm (RRR) on a 3...
from the Instrument department...ALE111 module send failure
Yokogawa ALE111 module communication problem
I have a similar problem. We are using ALE111 Ethernet card with controller ADV10D to communicate...
from the Power Generation department...Getting a better understanding of GT control PART 3
Getting a better understanding of GT control PART 3
CSA: We have dealt with L14HSX before,and it is an aux signal to L14HS. It will keep logic 1...
XVCMIR0S01_A XVCMIS0S01_A L14HSX L94X ...
L3SFLT L86GCVT L86FPG2LT L4PSTX4 ------|/|-------|/|------|/|--------(...
Neo, Thanks for breaking up this thread again. As for not reading signals literally, well,...
from the Instrumentation Engineers department...Wet Leg Carried Over Problem in Differential Pressure Transmitters
The seal which is filled in wetleg of DPT, is carried away with pipe fluid.
By Sam on 1 September, 2014 - 8:04 am -
Why did you use the buffer solutions? The SS impulse lines are very resistive to ammonia corrosion...
By d on 31 August, 2014 - 1:29 pm -
Routine refilling of all such wet legs is commonly practiced in such cases....
from the Electrical Engineer department...parallel operation of generator
We are having 18MW captive power plant to fulfill requirement of power and steam in company.
Sagar, All the generator prime movers do NOT need to be running in the fixed load setpoint. And,...
By sagar on 30 August, 2014 - 6:35 am -
Because of the vibration in the turbine we have to restrict the load on the TG set. The total...
Sagar, Hmmmm....My understanding of the definition of a captive power plant is one that is...
from the Mark VIe Governor department...Mark VIe Governor control
What are the basics of governor control?
N.V.Q, You say you're accustomed to reading SAMA diagrams; everyone, at some point in their...
Thank you very much for your answer. I am checking now the Turbine control logic software...
N.V.Q, I would also recommend looking at the manuals provided with the turbine (not the Mark VIe...
By JFB on 28 August, 2014 - 5:05 pm -
> N.V.Q, > Please work with GE There are non OEM training companies that do a good job,...
N.V.Q, Please work with GE to get this information. We have discussed this, basically, in the...
from the Linux RS485 department...RS485 2-wire auto - Linux support
RS485 PC hardware with 2-wire auto mode AND full Linux support
By Curt Wuollet on 31 August, 2014 - 10:03 am -
You might also try poking around the comedi project and Linux machining sites for cards that have...
By tanstaafl on 30 August, 2014 - 5:12 pm -
Leo: > To date I have got my code talking to my sensors (RS485 modbus RTU) on my Windows...
By digguru81 on 29 August, 2014 - 12:54 pm -
Hi Leo, Have you considered using a USB port to send the signal to your computer? There's a...
from the wonderware device intigration department...Communication Between Emerson DeltaV DCS and Wonderware
Communicating through FSGateway between Emerson DCS DeltaV and Wonderware System platform
from the Investors department...New Flow Measurement Method
How to find an investor of instruments.
By JMW on 31 August, 2014 - 6:27 am -
What are the usual contract of employment conditions? In the USA any idea, innovation or...
Thank you again. I think what I have to do is to make sure that my idea works perfectly. Then I...
By JMW on 28 August, 2014 - 12:48 pm -
> I am on same process of fund raising that A. Hasseli for a different products line. If anyone...
from the Help needed department...Sliding Mode Control
Help with Anti-swing Sliding Mode Controller for Gantry Crane
from the Power Generation department...Getting a better understanding of GT control PART 2
Getting a better understanding of GT control PART 2.
CSA: I opened a new thread for this one is a little long and disorganized. ...
from the Forum department...GE Frame 7EA Combustion Turbine Starting Motor
Starting motor does not cutout when a normal shutdown is given below 60% speed.
Bill Futch, I second everything MIKEVI said; it's not necessary to ramp fuel down before...
By MIKEVI on 28 August, 2014 - 7:27 pm -
Bill, s orry for the long delay in answering, I do not have a good excuse for you. So your...
from the ELECTRICAL PROJECTS department...Replace RS-485 with Siemens Profibus Cable
I am building a Modbus RTU network and am considering replacing RS-485 cable with Siemens Profibus cable. Want to hear from those who have done this.
By PG on 29 August, 2014 - 10:41 am -
Hello, apparently this guys are Siemens Distributors for South America: http://bit.ly/1nJZxLH ...
from the instrumentation department...Difference Between IP and MAC Addresses
What is the difference between IP address and MAC address?
By David Ferguson on 29 August, 2014 - 9:13 am -
Google it.........short answer, yes you have both MAC is a hardware address assigned at factory of...
from the Forum department...Isochronous Load Sharing on Dissimilar Generators
Advantages of isochronous load sharing over iso-droop mode configuration of three generators.
Thanks alot CSA. A great help. Very well explained....
from the Forum department...MODBUS to Lan Convertor
Looking for a MODBUS to Lan convertor.
By ICP- Robert on 28 August, 2014 - 7:35 pm -
We have a series of products called our TDS series. Using 2 of these, you can form a serial data...
from the Forum department...Hot Air Dryer Supply / Exhaust Air Handling
Supply and exhaust air handling control method evaluation.
By Curt Wuollet on 28 August, 2014 - 7:27 pm -
IIRC, the quantity that was changing was the exhaust velocity. You already have your supply plenums...
from the I&C department...Solatron flow computer Corrected volumetric flow
re-configure Solatron 7951 flow computer.
By JMW on 28 August, 2014 - 12:18 pm -
Hi, I think the contact details I gave are probably going to get you to them but just in case: ...
from the Education department...Java PID example
I am searching a PID controller example in Java with source code.
By James Ingraham on 28 August, 2014 - 12:11 pm -
Google turned up a few things. This one looks interesting: ...
from the Programming languages department...Shell command in VB 6
Help with the shell command in VB 6
By Max on 28 August, 2014 - 11:34 am -
You are calling a Microsoft Word File not the Microsoft Word Application, it should be like this ...
from the Instrumentation department...Instrument Control Loop
Maintenance procedure of process control loop.
By Sam on 28 August, 2014 - 7:29 am -
On any live process plant this procedure can be followed directly or be adapted slightly to suit...
from the Forum department...TCP/IP over Ethernet
Is TCP/IP on ethernet better?
What does ethernet port with web server mean? If there is any literature related to that please...
from the Automation List department...Control Valve Cycle Measurement
How to measure the control valve cycles?
By Sam on 28 August, 2014 - 4:38 am -
I think you are making things more complicated than it needs to be. I have never heard about...
from the Instrumentation and Control department...Calculating Pressure Transmitter Range
How can we test Rangeability of Pressure Transmitter?
By Kamaraj on 28 August, 2014 - 4:34 am -
Thanks Mr.David & Thanks for all....
Swipple's Rule of Order:
He who shouts the loudest has the floor.