Emerson Exchange 365

The DeltaV version 10.3 modules and named sets are in the zipped *Configuration download . The installation, screen prints, and user guide pdf files are in the zipped *Documentation download . The operator graphics and process history trend charts are in the zipped *Graphics-Charts download . The following is an overview in the user guide. Overview The labs are designed to be run from operator graphic screens ( PDF preview ) so the user does not need to get into DeltaV control studio. This makes the labs fast and easy to use independent of DeltaV configuration knowledge opening up the labs to technicians, process engineers, and students. The user can change PID structure and options on the fly without a download. Automated tests and metrics are setup to capture the current and best performance. The use of labs for process control improvement was demonstrated in a series of 12 Deminars at http://modelingandcontrol.com/archives/deminars/ recorded by Greg McMillan and Jim Cahill . The DeltaV composite template library modules can also be used by DeltaV users for other purposes. These library modules provide online metrics for setpoint changes and load disturbances, bang-bang logic for the fastest possible setpoint response, and generic simulations to give an incredibly rich spectrum of dynamic response possibilities of actuators, valves, processes, and sensors. The *-Screens.pdf file shows the operator screens and the *-Installation.pdf file provides instructions for a DeltaV Simulate standalone laptop installation.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #72: Achieve Best Loop Coordination and Optimization By Greg McMillan (Technical... Read the full text.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #71: Achieve Best Disturbance Rejection and Setpoint Response By Greg McMillan (Technical... Read the full text.

What are the relative merits of different PID structures, a setpoint (SP) filter, and analog output (AO) setpoint rate (velocity) limits? Should I seek a general solution I can use all the time and each knob fits a particular purpose, or a controller... Read the full text.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #12: The Good, the Bad, and the Ugly of Magmeters By Hunter Vegas (Technical)  Early... Read the full text.

Anti-reset windup (ARW) protection is a standard feature of industrial PID controllers. In some DCS, ARW limits are adjustable besides output limits.   The ARW limits may not be at their best values. ARW default values may not match up with output limits... Read the full text.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #74: Eliminate Split Range Oscillations By Greg McMillan (Technical) Just as split... Read the full text.

This last checklist may help you get the most out of your career and your life.   Our accomplishments and our humanity are tightly related. The checklist is a summary of an understanding gained of an attitude and philosophy that has helped me be a better... Read the full text.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #15: You Cannot Control What You Do Not Understand By Hunter Vegas (System Design... Read the full text.

Contrary to common conceptions, bioreactors have more sophisticated analysis and control and with the advent of at-line analyzers more extensive opportunities than chemical reactors. The specialty chemical industry can get a preview of the future from... Read the full text.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #83: Don’t Use On-Off Valves for Control Valves By Greg McMillan (Technical)  Prior... Read the full text.

Nearly every process input is a flow, whether directly via a material input flow or indirectly via an energy input (e.g., utility flow). Good flow control is important for achieving the desired material and energy balance and stoichiometric ratio for... Read the full text.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #35: Operators Can Make or Break an Automation Project By Hunter Vegas (Career) Senior... Read the full text.

Nearly all of the deadtime in pressure loops comes from the automation system. For gas pressure there is a process time constant or integrating process gain that becomes slower as the volume increases and the throughput decreases. Tight control is possible... Read the full text.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #54: Look for Opportunities to Improve Plant Profitability By Greg McMillan (Career... Read the full text.

Compressor surge is the fastest gas dynamic phenomena. A precipitous drop in flow occurs in 0.05 seconds and subsequent flow reversals occur every 1 to 2 seconds. The speed of response requirements for control valves, measurements, and controllers are... Read the full text.

Note: The following tip is from a new book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #18: Cheap Instrumentation Is Exactly That By Hunter Vegas (System Design) The expression... Read the full text.

The maximum level controller gain for stability is one or two orders of magnitude higher than expected. The main limit to how high you can go in controller gain is often measurement noise and control objective. The common practice of using much less than... Read the full text.

Note: The following tip is from the upcoming book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #100: Use an Enhanced PID for At-Line and Off-Line Analyzers By Greg McMillan... Read the full text.

pH is the most common analytical measurement. pH is important for product purity and environmental compliance. The most stringent pH control requirements occur in bioreactors for biopharmaceuticals where a deviation of 0.05 pH can cause a noticeable degradation... Read the full text.

At ISA Automation Week, Thursday, 27 September 2012 from 9:30 to 11:00 a.m., attendees of a panel discussion “The Best of the ISA Mentor Program – Building the Future” will review the highlights of the ISA Mentor program and the accomplishments of the... Read the full text.

Batch processing is a critical part of many high value added biological and chemical processes. Batch processes are capable of higher conversions than continuous processes because there is no discharge flow until the batch is deemed complete. Continuous processes tend to have more analyzers, and be more mature, well defined, and well behaved. Batch processes are used to get the product to market faster.   Also, unknowns can be mitigated by holding the batch longer. read more

Note: The following tip is from the upcoming book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #43: Small, Continuous Waste Streams = BIG Money By Hunter Vegas (Career)... Read the full text.

Flow feed-forward control is the most utilized and underutilized advanced regulatory control technique. Proper implementation involves the use of ratio control and cascade control. Processes can be started up and moved quickly to new operating points by achieving a new flow ratio.   Temperature and composition loops have a particular ratio for any given setpoint, whereas level and pressure loops have a ratio typically independent of setpoint. The ratio is found by simply dividing flows from an up to date Process Flow Diagram (PFD). read more

Note: The following tip is from the upcoming book by Greg McMillan and Hunter Vegas titled, 101 Tips for a Successful Automation Career, inspired by the ISA Mentor Program. Tip #57: Be a Team Player By Greg McMillan (Career) When I started my career,... Read the full text.