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416 Results Found
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Decentralized Supervisory Based Switching Control for Uncertain Multivariable Plants
Technical discussion of the design of a decentralized switching control for uncertain multivariable plants. -
AutoQuiz: In What Position Does a Control Valve with a Direct Acting Actuator Fail?
A direct acting valve travels to the closed position when the signal increases. When there is a failure, there is no signal and power. -
AutoQuiz: How to Optimize HMI Screen Design
For HMI screen design, studies show people can remember only a select number of new things for about 20 seconds. -
AutoQuiz: What Is the Final Control Element in a Process Control System?
A final control element is a device that directly controls the value of the manipulated variable of a control loop. -
AutoQuiz: What Part of an Industrial Test Procedure Should Be Performed First?
Looking at a mechanical and electrical situation globally to spot obvious and safety threats first is always best. -
AutoQuiz: How to Measure the Level of a Liquid with a Dielectric Constant
Radar can detect the smallest change in surface level. It does not depend upon the temperature or composition of the fluid as long as the beam is narrow and the dielectric constant. -
AutoQuiz: What is the Best HMI Graphic Display Level for a Distillation Column?
AutoQuiz: A distillation column refers to a piece of equipment in the distillation process that contains several loops. -
Book Excerpt + Author Q&A: Industrial Automation and Control System Security Principles
The second edition of Industrial Automation & Control System Security Principles offers the latest approaches to industrial automation security. -
AutoQuiz: What is the Definition of a Design Standard?
Standards define quality and methods of fabrication or installation of materials and equipment -
How Can ISA Best Meet My Needs?
The more you put into your ISA membership, the more you’ll benefit from our many programs. -
AutoQuiz: What are the Continuous Sequence of Steps Performed by a PLC?
AutoQuiz: Continuous Sequence of Steps Performed by a PLC -
AutoQuiz: How Do You Minimize Electrical Interference in a Control Panel?
AutoQuiz: How to minimize electrical interference when AC power and DC signal wiring meet in a control panel. -
Book Excerpt + Author Q&A: Applying FOUNDATION Fieldbus
Applying FOUNDATION Fieldbus is authored by professionals who have extensive experience in implementing the largest adaptation of the technology. -
AutoQuiz: How to Calculate Rated Torque with Variable Frequency Drives
The volts per hertz ratio (V/Hz) controls the torque of a motor. As long as this ratio is in proportion with the nameplate rating, the motor will develop rated torque. -
Modular Systems Speed and Simplify New Plant Programming
Process equipment and plants are being built off-site as modules and delivered to sites as complete units to save costs and solve staffing issues. -
AutoQuiz: How Do You Change from Single Loop Control of a Process Variable?
AutoQuiz: Change DCS from single loop control of a process variable to cascade, ratio, feedforward, adaptive, or multi-variable control -
AutoQuiz: Which Control Valve Body Style Is Most Likely to Develop Blockage in a Paper-Pulp Slurry Service?
AutoQuiz: Blocked control valves used in a paper-pulp slurry service. -
Product Lifecycle Management and Automation Are Being Drawn Together
Product lifecycle management and automation are being drawn together by a series of technological developments. The driving force is a combination of the elements of hardware, “smart,” and cloud. -
AutoQuiz: What are the Basic Components of a Programmable Logic Controller or PLC?
AutoQuiz: What are the basic components of a programmable logic controller? -
AutoQuiz: What are Protection Techniques for Equipment?
AutoQuiz: Protection techniques for equipment in a Class I, Division 1 area
