Blogs

2011.03.29: PID Unleashed
2011.03.28: Process Simulation – Part 3
2011.03.25: Can’t Get No Satisfaction
2011.03.21: Process Simulation – Part 2
2011.03.17: Master of Space and Time
2011.03.14: Process Simulation – Part 1
2011.03.09: Split Range Control Deminar #12 Review
2011.03.09: The Confluence of Legends
2011.03.08: Split Range Control Deminar #12 Announcement
2011.03.07: Model Predictive Control
2011.03.04: A Calculation so Simple Yet so Powerful
2011.03.04: Are We Misleading Our Operators?
2011.02.28: Ratio Control
2011.02.24: Opportunity for Minimizing Loop Interaction
2011.02.24: Engineers and Technicians Take a Bow
2011.02.21: Valve Position Control
2011.02.18: Dynamic Reset Limit
2011.02.14: Split-range Control
2011.02.11: The Latest in pH Measurement and Control
2011.02.11: Valve Position Control
2011.02.08: Virtualization – Real Today, a Reality Tomorrow
2011.02.07: Override Control
2011.02.03: Control Talk
2011.01.31: Cascade Control
2011.01.27: Smart Adaptive Feedforward Control
2011.01.24: Feedforward Control
2011.01.20: We are ISA
2011.01.17: Tuning and Loop Performance
2011.01.11: Universal Concept – Bias
2011.01.10: PID Feedback Control
2011.01.06: Review of Deminar #11 – Feedforward Control -Timing is Everything
2011.01.05: Feedforward Control using PID and PIDPlus – Deminar 11 Starts in 15 minutes
2011.01.03: Process Characterization – Integrating Process
2010.12.30: Universal Concept – Deadtime
2010.12.27: Process Characterization – Inverse Process Response
2010.12.23: XY Plots for Operations and Process Analysis
2010.12.22: Temperature Measurement – The Most Important of the Common Measurements
2010.12.20: Process Characterization – Self-regulating Process
2010.12.16: Star Performers in Minimizing Life Cycle Costs
2010.12.13: Tutorial Series – Foundation Fieldbus
2010.12.09: Measurement and Valve Errors – Sources and Impact
2010.12.08: Exceptional Opportunities in Process Control Course Presentations
2010.12.06: Roundtable Presentation – Life Science Industry Forum
2010.11.29: Control Loop Foundation – Web Support
2010.11.26: Reactor Temperature Control Insight of the Day
2010.11.25: Secret Installation Effects
2010.11.25: Reactor Temperature Control Insight of the Day
2010.11.24: Reactor Temperature Control Insight of the Day
2010.11.23: Reactor Temperature Control Insight of the Day
2010.11.22: Reactor Temperature Control Insight of the Day
2010.11.22: Control Loop Foundation Class
2010.11.19: Heat Exchanger Temperature Control Insight of the Day
2010.11.18: Feedforward Control – Deminar 11 Dec 1 Free Book
2010.11.18: Heat Exchanger Temperature Control Insight of the Day
2010.11.18: Deminar Demos – Process Control Lab Website
2010.11.16: Heat Exchanger Temperature Control Insight of the Day
2010.11.15: Heat Exchanger Temperature Control Insight of the Day
2010.11.15: Control Loop Foundation Web Site
2010.11.11: Control Loop Foundation Overview
2010.11.09: Feedforward Control – Deminar 11 Dec 1
2010.11.08: Can Measurement Delay be Helpful?
2010.11.05: Advanced Temperature Measurement and Control Insight of the Day
2010.11.04: Batch Process Analytics – update –
2010.11.03: Advanced Temperature Measurement and Control Insight of the Day
2010.11.02: Advanced Temperature Measurement and Control Insight of the Day
2010.11.01: CHARMED Upgrading UT Pickle Separations to DeltaV v11
2010.11.01: Advanced Temperature Measurement and Control Insight of the Day
2010.10.29: Advanced Temperature Measurement and Control Insight of the Day
2010.10.28: Enhanced PID for Wireless Eliminates Split Range Oscillations
2010.10.28: Advanced Temperature Measurement and Control Insight of the Day
2010.10.28: Use of Data Analytics in Pharmaceutical Manufacturing
2010.10.27: Advanced Temperature Measurement and Control Insight of the Day
2010.10.26: Advanced Temperature Measurement and Control Insight of the Day
2010.10.25: Advanced Temperature Measurement and Control Insight of the Day
2010.10.22: How to Get Started With Advanced Control
2010.10.15: ISA Automation Week 2010 – The Most Important Week in my Career
2010.10.14: Guidelines for Setting Filtering and Module Execution Rate
2010.10.13: Review of Deminar #10 – Dead Time Compensator Myth Buster
2010.10.12: Dead Time Compensator Myth Buster
2010.10.08: The Complete Picture
2010.10.08: Process Analysis Using 3D Plots
2010.10.03: Short Course on Control Loop Foundation
2010.10.01: The Latest on Smart and Wireless Instrumentation
2010.09.24: Developing and Selling Process Control Ideas, Products, and Services – Emerson Exchange Short Course
2010.09.24: Control Loop Foundation
2010.09.08: Review of Deminar #9 – Process Control Improvement Primer
2010.09.07: Deminar #9 Bonus – Addition of Eleventh Concept to Primer
2010.09.02: Wireless Benefits of Humor
2010.09.01: Preview of Deminar #9 – Process Control Improvement Primer
2010.08.26: Review of Deminar #8 – PID Control of Runaway Processes
2010.08.11: Review of Deminar #7 – PID Control of True Integrating Processes
2010.08.09: Deminar #7 – PID Control of True Integrating Processes
2010.08.05: Wireless PID Benefits Extend to Abnormal Situations, Analyzers, and Valves
2010.07.12: July Deminars Rescheduled for August
2010.07.12: Wireless Online Process Metrics
2010.06.28: Thank Goodness for Throttled Flows
2010.06.23: Review of Deminar #6 – PID Tuning for Near-Integrating Processes
2010.06.15: A Smorgasbord of Batch Cycle Time Minimization Opportunities – Part 1
2010.06.09: Review of Deminar #5 – PID Tuning for Self-Regulating Processes
2010.06.08: Auto Tuning and Adaptive Control of Nonlinear Processes
2010.05.28: Deminar #4: On-line Process Control Lab Access and Use
2010.05.20: How Fast Does Valve Position Communication Need to Be?
2010.05.13: Review of Deminar #3 – PID Control of Slow Valves and Secondary Loops (How to Eliminate Bursts of Oscillations with the “Dynamic Reset Limit” PID option)
2010.05.11: The Most Underutilized Component in Nearly Every Control Loop
2010.04.22: Deminar #2 Review – PID Control of Valve Sticktion and Backlash (How to Eliminate Continual Oscillations with the “Integral Deadband” PID option)
2010.04.13: Deminar #1 Review – PID Control of Sampled Measurements (How to Eliminate Oscillations from Analyzers and Wireless Measurements with a PID Enhancement)
2010.04.05: Interactive Opportunity Assessment – Introduction
2010.04.02: Exceptional Opportunities in Process Control – Peak and Integrated Error – Part 4
2010.03.29: Exceptional Opportunities in Process Control – Peak and Integrated Error – Part 3
2010.03.22: Exceptional Opportunities in Process Control – Peak and Integrated Error – Part 2
2010.03.10: Exceptional Opportunities in Process Control – Peak and Integrated Errors – Part 1
2010.02.22: Exceptional Opportunities in Process Control – Flow and Level Measurements
2010.02.15: Exceptional Opportunities in Process Control – Adaptive Level Control
2010.02.05: Exceptional Opportunities in Process Control – Middle Signal Selection
2010.01.27: Exceptional Opportunities in Process Control – Smart Wireless pH and Conductivity
2010.01.19: Exceptional Opportunities in Process Control – Measurement Noise
2010.01.12: Exceptional Opportunities in Process Control – Virtual Plants
2010.01.05: My Top Twenty Broken New Years Resolutions
2009.12.15: Exceptional Opportunities in Process Control – VSD Dynamics and Rangeability
2009.12.08: Exceptional Opportunities in Process Control – Control Valve Rangeability
2009.12.01: Exceptional Opportunities in Process Control – Control Valve Dynamics
2009.11.16: Exceptional Opportunities in Process Control – Startup and Abnormal Conditions
2009.11.09: Exceptional Opportunities in Process Control – Articles and Books
2009.10.23: Exceptional Opportunities in Process Control – Expertise Development
2009.10.15: Exceptional Opportunities in Process Control – ISA Boston Presentation
2009.10.09: Exceptional Opportunities in Process Control – Online Metrics
2009.09.25: Exceptional Opportunities in Process Control – Live Process Flow Diagrams
2009.09.15: Exceptional Opportunities in Process Control – New Sensor and Valve Technologies
2009.09.09: Exceptional Opportunities in Process Control – Sample Time
2009.09.02: Exceptional Opportunities in Process Control – Integrating Process Tuning and Performance
2009.08.18: Post Retirement Key Points – Part 4 (2009 Articles)
2009.08.10: Post Retirement Key Points – Part 3 (2007 – 2008 Articles)
2009.08.04: Featured Articles
2009.07.24: Post Retirement Key Points – Part 2 (2005 – 2006 Articles)
2009.07.06: Post Retirement Key Points – Part 1 (2003 – 2004 Articles)
2009.06.01: What Have I Learned? – Bridging the Gap between Universities and Industry
2009.05.28: What Have I Learned? – Writing
2009.05.19: What Have I Learned? – Wiring and VFD Problems
2009.05.11: What Have I Learned? – Cost and Source of Oscillations (Part 4)
2009.05.04: What Have I Learned? – Cost and Source of Oscillations (Part 3)
2009.04.27: What Have I Learned? – Cost and Source of Oscillations (Part 2)
2009.04.20: What Have I Learned? – Cost and Source of Oscillations (Part 1)
2009.04.07: What Have I Learned? – Ratio Control (Part 2)
2009.04.03: Featured Articles
2009.04.03: Books
2009.04.03: Lectures
2009.03.30: What Have I Learned? – Ratio Control (Part 1)
2009.03.25: Application Notes
2009.03.24: What Have I Learned? – Manipulation of Multiple Flows (Part 3 – MPC)
2009.03.16: What Have I Learned? – Manipulation of Multiple Flows (Part 2 – Valve Position Control)
2009.03.09: What Have I Learned? – Manipulation of Multiple Flows (Part 1 – Split Ranged Control)
2009.03.04: What Have I Learned? – Cascade Control (Part 3)
2009.02.23: What Have I Learned? – Cascade Control (Part 2)
2009.02.16: What Have I Learned? – Cascade Control (Part 1)
2009.02.09: What Have I Learned? – Unexpected Wireless Benefits
2009.02.02: What Have I Learned? To Lag or Not to Lag?
2009.01.16: Site and Myself Being Rejuvenated – Will Return Feb 2
2009.01.12: What Have I Learned? – Einstein and the Ultimate Limits for Loop Performance
2009.01.04: What Have I Learned? – Sharing Knowledge
2008.12.29: The Real Deal with Wet Labs
2008.12.22: The Secret Life of pH Electrodes
2008.12.07: Past, Present, and Future of Automation – Part 6 (Operator Interface)
2008.12.01: Past, Present, and Future of Automation – Part 5 (Benchmarking and Opportunity Assessment)
2008.11.17: Past, Present, and Future of Automation – Part 4 (APC and Wireless)
2008.11.07: Past, Present, and Future of Automation – Part 3
2008.10.26: Past, Present, and Future of Automation – Part 2
2008.10.19: Past, Present, and Future of Automation – Part 1
2008.10.08: High Fidelity
2008.09.26: Tips-N-Techniques (TNT) – Reset Has No Sense of Direction
2008.09.20: Tips-N-Techniques (TNT) – Resetting Reset Time
2008.09.05: Gone Fishin – Back Sept 18
2008.08.28: Tips-N-Techniques (TNT) – Effect of Sample Delay on Tuning and Loop Performance
2008.08.17: Tips-N-Techniques (TNT) – Tuning Furnace and Incinerator Pressure Loops
2008.08.08: Tips-N-Techniques (TNT) – Tuning Runaway Reactor Temperature Loops
2008.08.02: Tips-N-Techniques (TNT) – Tuning Level Loops
2008.07.26: Is This the Time – Part 4?
2008.07.18: Is This the Time – Part 3?
2008.07.10: Is This the Time – Part 2?
2008.07.01: Is this the Time – Part 1?
2008.06.24: Greg has Left the Building
2008.05.26: The Future is Here – Part 2
2008.05.11: The Future is Here – Part 1
2008.04.28: Common Control Myths – Old and Unimproved
2008.04.15: Common Control Myths – Part 6
2008.04.05: Common Control Myths – Part 5
2008.03.14: Common Control Myths – Part 4
2008.03.08: Common Control Myths – Part 3
2008.02.29: Common Control Myths – Part 2
2008.02.22: Common Control Myths – Part 1
2008.02.15: Actual Control Valve Scenarios – Part 3
2008.02.08: Actual Control Valve Scenarios – Part 2
2008.02.01: Actual Control Valve Scenarios – Part 1
2008.01.28: Fifths Rule
2008.01.22: Now for Something Completely Different
2008.01.14: Biggest Opportunities for Process Control Improvement – The Operator (Training Part 2)
2008.01.07: Biggest Opportunities for Process Control Improvement – The Operator (Training Part 1)
2007.12.28: Biggest Opportunities for Process Control Improvement – The Operator (Online Metrics)
2007.12.21: Biggest Opportunities for Process Control Improvement – Controller Tuning – Part 4
2007.12.15: Biggest Opportunities for Process Control Improvement – Controller Tuning – Part 3
2007.12.14: Biggest Opportunities for Process Control Improvement – Controller Tuning – Part 2
2007.11.29: Biggest Opportunities for Process Control Improvement – Controller Tuning – Part 1
2007.11.21: Biggest Opportunities for Process Control Improvement – Controller Output Analytics
2007.11.08: Biggest Opportunities for Process Control Improvement – Basic Control
2007.11.01: Biggest Opportunities for Process Control Improvement – Concentrations
2007.10.25: A Glimpse from the Past into the Future of Biochemical Measurement and Control
2007.10.16: Sensible Sensor Installation – Tips
2007.10.09: Sensible Sensor Installation – Follow Up
2007.10.02: Sensible Sensor Installation
2007.09.24: Feedforward Techniques – Part 4
2007.09.18: Feedforward Techniques – Part 3
2007.09.08: Feedforward Techniques – Part 2
2007.09.04: Feedforward Techniques – Part 1
2007.08.27: From the Beach
2007.08.20: Free Control Technique Buffet
2007.08.14: Limit Cycle Periods – Part 3
2007.08.07: Limit Cycle Periods – Part 2
2007.07.30: Limit Cycle Periods – Part 1
2007.07.20: Freedom to Optimize PID Controller Structure – Part 2
2007.07.14: Freedom to Optimize PID Controller Structure – Part 1
2007.07.08: Gainfully Tuned
2007.06.29: Slow Down
2007.06.23: So Smooth
2007.06.14: If I had Just 12 Wishes for pH Control Systems
2007.06.08: Deadtime’s Secret Identity – Part 2
2007.06.01: Deadtime’s Secret Identity – Part 1
2007.05.25: Location, Location, Location – Part 2
2007.05.18: Location, Location, Location – Part 1
2007.05.10: Control Valves on the Skids
2007.05.03: pH Control Solutions
2007.04.30: A Funny Thing Happened on the Way to the Control Room
2007.04.19: Valves that can Turn on a Dime, or at Least a Quarter – Part II
2007.04.09: Valves that can Turn on a Dime, or at Least a Quarter – Part I
2007.04.02: Analog Control Holdouts
2007.03.26: Linear in a Nonlinear World – Part II
2007.03.21: World Batch Forum PAT Webcast
2007.03.16: Back to the Future of Tuning
2007.03.05: The Good, the Bad, and the Ugly
2007.02.28: Setpoint Rate Limiting in Control
2007.02.27: Stirring it Up
2007.02.19: So Many Models, So Little Time
2007.02.12: Missing in Action
2007.02.12: Reducing Batch Cycle Time
2007.02.05: Development of Adaptive Control Technology
2007.02.05: A Head Start in Practical Process Control
2007.01.29: Protecting Your Back – the Cautious Approach and Fast Getaway Scenario
2007.01.26: SP104 Initiative to Raise Industry Awareness of EDDL
2007.01.22: Block Structure of Fieldbus Devices
2007.01.22: Stuff that Comes at You Too Fast
2007.01.15: Use of Mode in Process Control
2007.01.15: Five Weeks in Five Minutes
2007.01.08: Innovation in the Pharmaceutical Industry
2007.01.08: When is a Batch a Batch?
2007.01.01: PID Modifications for Unreliable Communications
2007.01.01: Top Ten Broken New Years Resolutions
2006.12.25: System Commissioning – Onsite Work
2006.12.25: First Principal Process Gains, Dead Times, and Time Constants
2006.12.18: Linear in a Nonlinear World
2006.12.18: Simulation Using Foundation Fieldbus Function Blocks
2006.12.11: Getting a Kick Out of Stick-Slip Compensation
2006.12.11: Process Control Function Blocks
2006.12.04: Control Using Wireless Transmitters
2006.12.04: Deadly Deadband
2006.11.27: Getting Rid of Dead Time – Beam Me Up Scotty
2006.11.27: Saving PID Tuning When Replacing a Control System
2006.11.20: PID Design
2006.11.20: Without Dead Time and Disturbances I Would be Out of a Job
2006.11.13: Tuning in a Distributed Environment
2006.11.13: Disturbance Location and Speed and Process Delay/Lag Ratio
2006.11.06: Embedding MPC in a Control System
2006.11.06: Communication Interval, Control Execution Time, Analyzer Cycle Time, and Scan Time
2006.10.30: Control of Deadtime Dominant Processes
2006.10.30: Use of PID and MPC for Parental Advisory Control
2006.10.23: Control Performance of Fieldbus Installations
2006.10.23: Use of Model Predictive Control to Eliminate Split Ranged Control
2006.10.16: Combining Split Range and Valve Position Control
2006.10.16: How to Become Rich and Famous as a Technical Book Author
2006.10.09: How Process Control Education Should be Changed in the Universities
2006.10.09: Basics of Fieldbus
2006.10.02: Basics of Advanced Control
2006.10.02: Techniques to Improve pH Measurement Performance
2006.09.25: Unification of PID Controller Tuning Rules
2006.09.25: Control Basics and Terminology

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The opinions expressed here are the personal opinions of Terry Blevins and Mark Nixon. Content published here is not read or approved by Emerson before it is posted and does not necessarily represent the views and opinions of Emerson. © 2006-2012 Terry Blevins, Mark Nixon. All rights reserved.