Blogs

Dead Time Dominance Does Not Have to Be Deadly

Severely dead-time-dominant loops are particularly challenging because a control loop cannot see and start to correct for an unmeasured disturbance until after one dead time. Complete correction takes at least two dead times. Also, such loops are more susceptible to noise, since there is not a major process time constant...

What can PoE do for me?

Most industry pundits believe it is only a matter of time before we will truly have ‘Ethernet everywhere’ and what that might mean. Other than the obvious increase in bandwidth and difference in power available via PoE what new measurements and sensors might now be possible? An obvious option of...

Three Sides to Every Story

When it comes to articles in our magazine, there are usually three sides to the story. The first is the opinion of the writer, the second is input from vendors, and the third and most important by far is input from our readers: automation professionals working in process plants. ...