⧑ Industrial Control Group

Nucleonic level measurement for rail cars (tanker wagons)

Hi, Has any one used Nucleonic level gauge to measure liquid level during a rail car loading and unloading operation? W...

2 comments posted 21yrs

posted by Raj_Sreenevasan

2 comments posted 21yrs posted by Raj_Sreenevasan

Siemens Simatic WF-470 Video Display Module (Old)

Hello! I need help with automation modernization project. Old automation process control system uses Siemens Simatic S...

2 comments posted 21yrs

posted by no.spam.jukka58

2 comments posted 21yrs posted by no.spam.jukka58

simple inverted pendulum problem/ optimal control

I have a question. yes it's a homework question. I already gave it in so please no "we won't do your homework for you"...

15 comments posted 21yrs

posted by sparkle

15 comments posted 21yrs posted by sparkle

If you know a good manufacturer, please tell me.

Hi I am a inventor in London. My invention is a Batteryless Bicycle safely light which is not very difficult to manufac...

5 comments posted 21yrs

posted by iwicom

5 comments posted 21yrs posted by iwicom

Maths: the Laplace Transform of the convolution of two functions

The Laplace Transform of z(t) = x(t) * y(t) is Z(s) = X(s) . Y(s). In the demonstration of this, I fail to see why we a...

6 comments posted 21yrs

posted by jcastong

6 comments posted 21yrs posted by jcastong

Modbus C program for linux

Hello. I'm looking for simple C program using MODBUS RTU protocol to communication to device (RS486). I would attempt bi...

2 comments posted 21yrs

posted by g

2 comments posted 21yrs posted by g

4-20mA source and sink

Hi All, I am trying to understand 4/20mA outputs. I have two questions 1) Why do some output cards have +/-20mA capabil...

1 comments posted 21yrs

posted by tom2378

1 comments posted 21yrs posted by tom2378

How to overwrite some registers on a DSP

Hi all, Because of using a different kind of pulspattern to control a three-phase inductor mashine, i implemented an ow...

1 comments posted 21yrs

posted by enrs

1 comments posted 21yrs posted by enrs

gain scheduling or alternate approach?

Dear all, I'm designing an aircraft controller for a semester project. Strictly control, as the identification part has...

7 comments posted 21yrs

posted by nospam_rdrs

7 comments posted 21yrs posted by nospam_rdrs

PROFIBUS

I was wondering if there is anyone in this group actively working on the PRofibus field bus. I had some questions about...

4 comments posted 21yrs

posted by vinayinfosec

4 comments posted 21yrs posted by vinayinfosec

Correlating A/D and Quadrature Encoder with Direction Reversal

I need to acquire analog input data that is correlated with position information from an incremental encoder. In an old...

13 comments posted 21yrs

posted by no-one

13 comments posted 21yrs posted by no-one

Can you recommend economical single board PC?

Hello Group, Can you recommend economical single board PC? reliable operational system, to run small continuous long-ti...

3 comments posted 21yrs

posted by a8421

3 comments posted 21yrs posted by a8421

Using feed forward as negative feedback

I just worked on a pressure regulator valve controller that connected a high pressure (170 psi) air system to a lower (...

4 comments posted 21yrs

posted by jpopelish

4 comments posted 21yrs posted by jpopelish

Motion Control of Multi-hulled vessels

I am presently in my final year at Southampton University in the UK and am doing a group project on motion control in m...

1 comments posted 21yrs

posted by sjp301

1 comments posted 21yrs posted by sjp301

Truth Tables Help

I have a four part question in a tutorial, parts 1 & 2 I don't have any problem with. Parts 3 & 4 I have no idea what t...

6 comments posted 21yrs

posted by email

6 comments posted 21yrs posted by email