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The Control Blog

Industrial Automation & Control, Applications and Insights – by Shady Yehia

Heat Exchanger Control Strategies – Integrating Feedback, Feedforward and Cascade Control

Combining several schemes for heat exchangers control, like feedback, cascade and feedforward control, in an integrated approach, has proven to be an excellent Continue reading “Heat Exchanger Control Strategies – Integrating Feedback, Feedforward and Cascade Control”

Why You Need NO Timers, Other Than ON DELAY

Lately I’ve been reading some PLC brochures, I noticed one vendor bragging that his smallest PLC provides 7 types of timers and timing functions, presenting this as a differentiating factor between his PLC and the other brands. As much as the words sound tempting Continue reading “Why You Need NO Timers, Other Than ON DELAY”

Journey to the Center of the Plant, from FIELD to SCADA and Back! Part 4 – The Journey Back

Now that we finished the forward direction of our signals journey, time to follow our foot steps back from SCADA to the field, giving automatic and manual control commands to our process to alter it.

Continue reading “Journey to the Center of the Plant, from FIELD to SCADA and Back! Part 4 – The Journey Back”

Journey to the Center of the Plant, from FIELD to SCADA and Back! Part 3 – SCADA Software

­Now it’s time to create your SCADA software, in Part 2 we continued following our tank temperature from being a physical variable until it reached our computer in the form of a  Continue reading “Journey to the Center of the Plant, from FIELD to SCADA and Back! Part 3 – SCADA Software”

The 7 Habits for Successful Automation Solution Selling

Some people think that automation solution selling is no different than products or services selling. Nothing can be farther from the truth; solution selling can be tricky for the most  Continue reading “The 7 Habits for Successful Automation Solution Selling”

Journey to the Center of the Plant, from FIELD to SCADA and Back! Part 2 – Network and OPC

This post is the second post in the series “Journey to the Center of the Plant – from FIELD to SCADA and Back”, if you haven’t read Part 1, I recommend you read it first so you can follow the subject.

Continue reading “Journey to the Center of the Plant, from FIELD to SCADA and Back! Part 2 – Network and OPC”

Journey to the Center of the Plant, from FIELD to SCADA and Back! Part 1

Everyday more and more industries move towards centralized plant monitoring and control through SCADA systems. Clear understanding of how process information is flowing through an automation system managed by SCADA is a KEY skill for Continue reading “Journey to the Center of the Plant, from FIELD to SCADA and Back! Part 1”

To VFD or to FCV, that is the Question!

Implementing flow control in centrifugal pumps and fans by means of variable speed AC drive instead of the traditional mechanical flow control devices is capable of providing energy savings from 10% to 60% depending on Continue reading “To VFD or to FCV, that is the Question!”

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