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What is Process Gain? Why is Process Gain important when tuning Processes?
Professionals who tune PID controllers using manual methods tend to agree that understanding the Process Gain of their system is of the up-most importance. Among industry practitioners the Process Gain is often referred to as the “how far” or even the “sensitivity” variable and yet these descriptions can be rather vague to beginners.
Read MoreWhat Attributes Should You Look for in a Workshop Instructor?
Walking out of a classroom with the impression that you didn’t learn as much as you should have is never a good feeling. After an experience like that it can sometimes be hard to put your finger on what exactly went wrong:
Read MoreWhat is a Distributed Control System?
In a recent blog post we paid tribute to Dick Morley and his pivotal contribution to the process automation industry: the Programmable Logic Controller (PLC). Since the PLC and Distributed Control System (DCS) are both instrumental in controlling complex production processes, people occasionally use the two terms interchangeably. While the two are related, their applications are notably different.
Read MoreThe Power of the Hear-See-Do Learning Method
There is an old proverb that goes: “If you test a fish on how well it climbs a tree, it will think it’s a failure.” While this proverb is often used in relation to traditional K-12 education, it stands true in just about any educational scenario…
Read MoreDick Morley and the Story of the PLC
It’s been a few months since Dick Morley passed away. While a younger generation of engineers may be unfamiliar with Morley’s work, those that work in production environments are most certainly beneficiaries of his invention of the Programmable Logic Controller (PLC)…
Read More4 Reasons the OSI PI Data Historian is King of the Market
Data historians are a “must have” technology and among the automation market’s options the PI Historian from OSIsoft is the gold standard. OSIsoft has more-or-less led the historian market from its inception in 1980. The reason: OSI has continuously innovated to assure that the PI Historian is highly efficient and that it provides the preferred platform for higher value data…
Read MoreWhat Does Controller Output Reveal About FCE Health and Asset Reliability?
Remember the Far Side? Of course you do, but do you remember the one depicting the boy who leans his whole body forward as he pushes against a door that clearly reads “Pull”? Although the sign leading up to the building shows “Midvale School for the Gifted” this particular student doesn’t seem to get it. Any possibility of progress is blocked by a physical constraint…
Read MoreWhat Do I Need to Know About OSI’s Asset Framework?
Asset Framework from OSIsoft changes a manufacturer’s ability to extract value from plant data. It takes the seemingly infinite number of tags registered within the data historian and organizes them in an intelligent, hierarchical manner. This structure is increasingly valuable as plants apply sensor technologies to more and more equipment for the purpose of monitoring performance.
Read MoreWhat is the Moving Boxcar Method? How is Boxcar Averaging Applied to Control Loop Monitoring?
No surprise – advanced diagnostic tools like PlantESP constantly crunch data in order to uncover important trends and provide actionable insights. As the automation market’s leading controller performance monitoring solution PlantESP typically performs complex calculations on each PID control…
Read MoreWhat Effect Does Noise Have on Controller Tuning?
Noise – that random variation in your data signals – is seemingly everywhere. Low frequency process and high frequency signal noise are two sources that directly affect control. There’s no avoiding it. Indeed, when tuning PID controllers practitioners simply need to deal with it. As they say: It is what it is!
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