In order to provide an interface between the internal (digital) world of a computer and the external (analog)…
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Many traditional flowmeter technologies respond to the volumetric flow rate of the moving fluid.…
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Light has long been used as a long-range signaling medium. While communication by light through open air is…
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An exciting development in industrial instrumentation is the WirelessHART radio communication standard,…
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Many years ago, when I was first learning about electricity, I happened to discover a length of coaxial…
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Imagine a major marathon race, where hundreds of runners gather in one place to compete. When the starting gun…
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There is much to be said for neatness of assembly in electrical signal wiring. Even though the electrons…
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Labwork is an essential part of any science-based curriculum. Here, much improvement may be made over the…
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Every programmable logic controller must have some means of receiving and interpreting signals from real-world…
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These fortifications focus on human behavior rather than system design or component selection. In some ways…
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Binary patterns are not just able to represent numerical values. Given a standardized code, they may represent…
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One of the great benefits of digital technology is the ability to communicate vast amounts of information over…
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Abdelaziz, Ahmed (June 2014) Identified numerous typographical errors throughout the book, mostly repeated…
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To understand just how different FOUNDATION Fieldbus is from other digital instrument systems, consider a…
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An engineer named Bob Metcalfe conceived the idea of Ethernet in 1973, while working for the Xerox research…
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Cyber-security seems to have its own vocabulary, ranging from unwieldy technical acronyms to slang terms…
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Some of the simplest types of digital communication networks found in industry are defined by the EIA…
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As discussed at the beginning of this chapter, instrumentation safety may be broadly divided into two…
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The vast majority of PID controllers in service today are digital in nature. Microprocessors executing PID…
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Like so many other industrial data networks, FOUNDATION Fieldbus is an “unswitched” or…
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An engineer named Bob Metcalfe conceived the idea of Ethernet in 1973, while working for the Xerox research…
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In a manually-controlled process, a human operator directly actuates some form of final control element…
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An exciting development in industrial instrumentation is the WirelessHART radio communication standard,…
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I remember first learning about the world-wide Internet, and wondering what it actually looked like. The first…
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There are multiple motives for compromising the security of an industrial control system, some of which…
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Programmable logic controllers are essentially nothing more than special-purpose, industrial computers. As…
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The vast majority of PID controllers in service today are digital in nature. Microprocessors executing PID…
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Many years ago, when I was first learning about electricity, I happened to discover a length of coaxial…
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Light has long been used as a long-range signaling medium. While communication by light through open air is…
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Developed by the Modicon company (the original manufacturer of the Programmable Logic Controller, or PLC) in…
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At the next OSI Reference Model layer (layer 4) is a set of protocols specifying how reliable communication…
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These fortifications focus on human behavior rather than system design or component selection. In some ways…
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A completely different way of measuring liquid level in vessels is to bounce a traveling wave off the surface…
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A bridge circuit is basically a pair of voltage dividers where the circuit output is taken as the difference…
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In the United States, the ANSI and IEEE organizations have standardized a set of numerical codes referring to…
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A design-based fortification is one rooted in technical details of system architecture and functionality. Some…
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Cyber-security seems to have its own vocabulary, ranging from unwieldy technical acronyms to slang terms…
Textbook
Imagine a major marathon race, where hundreds of runners gather in one place to compete. When the starting gun…
Textbook
Every programmable logic controller must have some means of receiving and interpreting signals from real-world…
Textbook
One of the great benefits of digital technology is the ability to communicate vast amounts of information over…
Textbook
The simple PLC ladder diagram (LD) commands consist of contacts and coils, arranged in sequences that mimic…
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A completely different way of measuring liquid level in vessels is to bounce a traveling wave off the surface…
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The following animation shows the calculus concepts of differentiation and integration (with respect to time)…
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Many liquid substances undergo a process whereby their constituent molecules split into positively and…
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Coy, John J. et. al. (December 2012) Sampled graphic illustrations from his NASA Reference Publication…
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Learning is not merely a process of information transfer. It is first and foremost a transformation of…
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Learning from reading printed text is a kind of problem-solving activity it is own right. The problem is how…
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An electromechanical relay is an electrical switch actuated by an electromagnet coil. As switching devices,…
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Thermodynamics is the study of heat, temperature, and their related effects in physical systems. As a subject,…
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As described earlier in this chapter, calibration refers to the adjustment of an instrument so its output…
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A quantitative PID tuning procedure is a step-by-step approach leading directly to a set of numerical values…
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A flow switch is one detecting the flow of some fluid through a pipe. Flow switches often use…
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The three “elementary” particles of matter comprising all atoms are electrons, protons, and…
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Perhaps the simplest form of solid or liquid level measurement is with a float: a device that rides on the…
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A whole class of problem-solving techniques focuses on altering the given problem into a simpler form that is…
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Binary patterns are not just able to represent numerical values. Given a standardized code, they may represent…
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Control strategies such as cascade, ratio, feedforward, and those containing limit and selector functions can…
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A limit switch detects the physical motion of an object by direct contact with that object. An example of a…
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Non-dispersive analysis, while newer in discovery than dispersive analysis (Isaac Newton’s 17th-century…
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This section shows some of the many instrument symbols found in different types of technical diagrams used to…
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