Int_Aug-Sep_web-exclusive_slider

What is a Good Security Approach to Water and Wastewater Process Control Systems?

This article is based on presentations made at the 2013 ISA Water/Wastewater and Automatic Controls Symposium on 7 August 2013. Network security for water sector process control systems (PCS), such as supervisory control and data acquisition (SCADA) systems, is increasingly important and ever evolving due to the need for secure and reliable control systems. Additionally, process […]

Print Friendly
Continue Reading · 0
101 Tips for a Successful Automation Career

Tip #10: Butterfly Valves and/or Ball Valves with Positioners Are Not Control Valves

One of the more heated arguments I had with a client involved his extreme desire to use line size butterfly valves for controlling his process. The entire concept of using control valves for the available pressure drop and for controllability at low flow rates was utterly lost on him. We went round and round until […]

Print Friendly
Continue Reading · 0
The fuel cells stack voltages obtained by combining data from several different measuring devices during polarization curve scanning. The dash line represents the whole stack voltages measured by one device; the solid line represents the sum of individual cell voltages that is obtained by combining data from the other two measuring devices; the solid line with cross marker represents the shift of the solid line. The circle sign represents the specified point recorded by data logger file. This figure gives an example of the problems that are to be focused in the work. (For interpretation of the references to color in this figure, the reader is referred to the web version of this article.)

A robust data treatment approach for fuel cells system analysis

Abstract: This paper describes the implementation of a practical approach for fuel cells system data analysis. A number of data treatment techniques such as data management and treatment, data synchronization, and data reconciliation are introduced and discussed in order to solve the issues raised in the practical case. These techniques are integrated in a software environment […]

Print Friendly
Continue Reading · 0
101 Tips for a Successful Automation Career

Tip #92: Make Reset Time and Feedforward Action Smarter

The reset time can be approximated as a factor of the deadtime, but this dimensionless factor can range from 0.5 to 40 depending upon the type of process. The control literature has focused on self-regulating processes with process time constants in the same range as the deadtime and with little treatment of deadtime dominant processes, […]

Print Friendly
Continue Reading · 0
THANK YOU Card (a lot thanks gratitude message words tag cloud)

Conveying gratitude to ISA members for bringing energy and vitality to the Society

I’m very pleased to report that ISA Automation Week 2013, which was held last week in Nashville, Tenn., was a resounding success. The technical program was highly thought-provoking and packed with critical insights and information that attendees can put to use immediately in their work settings and careers. Such a high-profile, demanding, and resource-intensive conference […]

Print Friendly
Continue Reading · 0
Highway Signpost "Knowledge Transfer"

ISA education and training in December features new course offerings

December introduces two new course offerings from ISA.  Instrument Calibration and Documentation for FDA-Regulated Industries features practical information and hands-on experience on principles of electronic process control instrumentation used in pharmaceutical and other life science industries.  Process Automation Boot Camp For Non-Maintenance Personnel is the second new class from ISA that offers a basic overview […]

Print Friendly
Continue Reading · 0
101 Tips for a Successful Automation Career

Tip #5: Admit Your Errors

This tip is really an extension of the previous “Never Lie” tip. Every engineer in the history of the world has made mistakes. In fact, the best engineers are the ones who have made LOTS of mistakes—and learned from them. As mentioned previously, pain is instructive, and a painful mistake is a wonderful way to […]

Print Friendly
Continue Reading · 0
MES_InTech graphic

What are the Keys to Integrating Automation, MES and Business Systems?

Delivering an integrated manufacturing execution system (MES) is complex; however, by focusing on the key factors outlined in this article, successful projects have been implemented. Folklore among many automation and IT professionals is that MES projects are complex, expensive, and never complete. This article illustrates how to develop a high-level understanding of the MES system […]

Print Friendly
Continue Reading · 0