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Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
Hindsight is an exact science.
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Posts from...
Saturday, September 20, 2008
Plz help me getting the Air flow rate in m3/hr from Std m3/hr.
New Replies:
By Bruce Durdle on 20 September, 2008 - 5:17 pm -
By Bruce Durdle on 20 September, 2008 - 5:17 pm -
Standard m3/hr is actually a mass flow equivalent at a specified temperature and pressure. If you...
Kindly tell me how generator increase its load by just increasing the fuel of prime mover...
New Replies:
By Bruce Durdle on 20 September, 2008 - 5:16 pm -
By Bruce Durdle on 20 September, 2008 - 5:16 pm -
Increasing the fuel flow to the prime mover increases the speed and therefore causes the alternator...
I am investigating the need for remote control products within automation.
New Replies:
By Joe Jansen on 20 September, 2008 - 4:25 pm -
By Joe Jansen on 20 September, 2008 - 4:25 pm -
For what it is worth:
I find myself using Radmin for Windows frequently lately. In situations...
The role of control systems engineering
New Replies:
By Michael Griffin on 20 September, 2008 - 3:24 pm -
By Michael Griffin on 20 September, 2008 - 3:24 pm -
I'm not sure what your question is here. Are you asking for an explanation of what the Nyquist...
By Rushi Shroff on 20 September, 2008 - 1:25 pm - Mr Griffin,
I am actually very confused with why we are taught control system engineering...
By Michael Griffin on 20 September, 2008 - 12:04 am - Understanding the Nyquist theorem is fundamental to using analogue signals with any modern digital...
Converting rs232 to rj45 or panelview 8 pin for dh485
I am using 2 MicroLogix PLCs on DH 485 network.
I want to get the data on SCADA but it does not have that driver. I want it on RS485. Is it possible?
I want to get the data on SCADA but it does not have that driver. I want it on RS485. Is it possible?
New Replies:
By Evandro Carlos Vizicato on 20 September, 2008 - 1:38 pm -
By Evandro Carlos Vizicato on 20 September, 2008 - 1:38 pm -
If the Micrologix is a Micrologix1500 or Micrologix1200 or Micrologix1100 you donīt need any...
Upload application from Panelmate 1000
I would like to know how to use LCC/DCC keypad.
New Replies:
By CTTech on 20 September, 2008 - 1:32 pm -
By CTTech on 20 September, 2008 - 1:32 pm -
I generally refer to geh-5980. But using the keypad will enable you to locate the board within the...
By CSA on 20 September, 2008 - 12:18 am - This has been covered in several previous posts on control.com.
The 'Search' feature of...
We are facing a problem of Mark V controllers <R>, <S>, <T> whenever lightening strikes near by electrical switch yard.
New Replies:
By CTTech on 20 September, 2008 - 1:30 pm -
By CTTech on 20 September, 2008 - 1:30 pm -
CSA
Yes. All cores use the same power source(PD), but a single set of wires feed DTBA and is...
By CSA on 20 September, 2008 - 12:29 am - CTTech,
The same 125 VDC source feeds <CD> and <QDn>; in fact, the positive 125 VDC...
By CSA on 20 September, 2008 - 12:24 am - Tushar,
The power switches were grounded for human safety (personnel protection)....
DX9100 checksum/BCC calculation
New Replies:
By victor on 20 September, 2008 - 1:29 pm -
By victor on 20 September, 2008 - 1:29 pm -
Hello, please find my e-mail address in my web site that is www.factory-solutions.com.ar.
Thank...
We want to establish communication between Yokogawa Centum DCS with a PC over serial link
Adjusting the PID of a closed loop stepper system to the control system gives unexpected results
New Replies:
By Prashant on 20 September, 2008 - 1:27 pm -
By Prashant on 20 September, 2008 - 1:27 pm -
Hello,
I had tried same thing for servo control. Servo was used in position control loop and...
Have a waterfall churning out 12KW from an induction generator. My local utility gave me a new electronic meter that records the absolute kWh. So now when I send them excess power they charge me for the privilege! My old spinning disk meter was more fair even with an anti reverse ratchet!
New Replies:
By Phil Corso on 20 September, 2008 - 1:26 pm -
By Phil Corso on 20 September, 2008 - 1:26 pm -
Rob, further to my earlier post! As you suggested, I reviewed your website. You are to be lauded...
By Phil Corso on 20 September, 2008 - 12:09 am - Rob,
The utility is charging you for the cost of reactive Volt-Amperes (VAr) the induction-motor...
We have four GE Frame9 gas turbines (MarkIV) that always run on base load. While GT is running on furnace oil, sometimes (at least once in 2 hours) heavy dark black smoke comes out of boiler stack (GT running in combined cycle mode) which lasts from 5 to 10 minutes & then becomes normal...
New Replies:
By CSA on 20 September, 2008 - 12:29 am -
By CSA on 20 September, 2008 - 12:29 am -
jojo,
You bring up a very good possibility; this poster has never told us if the GE-design...
Compressor bleed valve problems in power plant.
New Replies:
By CSA on 20 September, 2008 - 12:22 am -
By CSA on 20 September, 2008 - 12:22 am -
Ero,
I'd be really interested to know what GE-design heavy duty gas turbine uses...
Looking for options for hardware/software that interface Fieldbus sensors to a Windows/Linux PC or a SBC running an RTOS.
New Replies:
By Curt Wuollet on 20 September, 2008 - 12:18 am -
By Curt Wuollet on 20 September, 2008 - 12:18 am -
These are available but the hardware is ungodly expensive as often they are a coprocessor type...
from the electrical department...
Terminal (load) voltage changes in single alternator due to change in driving torqueEffect of varying the driving torque of single alternator on load voltage (load connected is purely RESISTIVE).
New Replies:
By Phil Corso on 20 September, 2008 - 12:15 am -
By Phil Corso on 20 September, 2008 - 12:15 am -
Shahvir,
The correct explanation can be derived from information I provided in my White Paper...
By CSA on 20 September, 2008 - 12:13 am - I don't really understand the question; is it related to a single alternator driving a load...
I am interested in applying as a PE in electrical engineering.
New Replies:
By peter on 20 September, 2008 - 12:15 am -
By peter on 20 September, 2008 - 12:15 am -
Thank you for your answer.
I went to the website you gave me. But to my surprise, some courses...
How can I format a memory EPROM for S7 Siemens?
New Replies:
By Shahid Waqas on 20 September, 2008 - 12:12 am -
By Shahid Waqas on 20 September, 2008 - 12:12 am -
Do you want to store the S7 logic in to EEPROM?
One simple way is use your PG (Siemens...
Trying to learn Modbus from ground up. Looking for good, understandable resources.
New Replies:
By Michael Griffin on 20 September, 2008 - 12:08 am -
By Michael Griffin on 20 September, 2008 - 12:08 am -
Try the following where some else just asked the same question:
...
Safety requirements and OPC
Flow measurements are not constant in the C2H2 pipeline.
New Replies:
By John Catch on 20 September, 2008 - 12:02 am -
By John Catch on 20 September, 2008 - 12:02 am -
For low pressure gas, don't forget insertion style Turbine Flow Meters, which are likely the most...
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