PID, APC
Courtesy: Honeywell, CFE Media
Webcasts PID, APC June 18, 2019

Sustaining Advanced Process Control Performance and Benefits

Operation and maintenance of an Advanced Process Control (APC) application can be complex and understood by few. The profitability of a successful APC implementation, however, is understood by all.

By CFE Media
Model-less multivariable control (XMC) automates the way operating teams have always carried out multivariable constraint control and optimizaton manually. Notably, this method does not require detailed models or embedded optimizers. XMC uses patented rate-predictive control (RPC) internally. Courtesy: APC Performance LLC
PID, APC May 13, 2019

Top 5 Control Engineering articles May 6-12

Articles about multivariable control benefits, control network standards, human-robot interaction, data historians, and IIoT benefits for manufacturers were Control Engineering’s five most clicked articles from May 6-12. Miss something? You can catch up here.

By Chris Vavra
Figure 4: In an integrated SIS architecture, safety-critical functions logically and physically are separated—still complying with ISA and NAMUR standards—yet located on the same system. This eliminates the need to maintain multiple defense-in-depth designs. Courtesy: Emerson
PID, APC May 7, 2019

Sustainable cybersecurity architecture for safety instrumented systems

Choosing a safety instrumented system (SIS) architecture for defensible operation across the product lifecycle is one of the first decisions an organization must make; know these applicable standards.

By Sergio Diaz and Alexandre Peixoto
Model-less multivariable control (XMC) automates the way operating teams have always carried out multivariable constraint control and optimizaton manually. Notably, this method does not require detailed models or embedded optimizers. XMC uses patented rate-predictive control (RPC) internally. Courtesy: APC Performance LLC
PID, APC April 30, 2019

Model-less multivariable control benefits

Part 2: Model-less multivariable control (XMC) is designed to solve multivariable control challenges without using detailed models or embedded optimizers.

By Allan Kern
Companies reliant on DCS technology realize migration is difficult and the process delicate, but it's worth it because the costs of losing control of a process is much higher. Courtesy: Maverick Technologies
PID, APC April 29, 2019

Some best practices recommended for DCS migration

A proven process control solution enters the 21st century.

By Jake Henn
Figure 6: A first order control loop Bode analysis find the poles and zeros of the control loop. Courtesy: ControlSphere LLC
PID, APC April 29, 2019

Top 5 Control Engineering articles April 22-28

Articles about object-oriented industrial programming, AI and machine learning benefits, IIoT benefits for manufacturers, and rate-predictive control were Control Engineering’s five most clicked articles from April 22-28. Miss something? You can catch up here.

By Chris Vavra
Figure 9: Second order control loop Bode analysis can help if the first order gain was insufficient. Courtesy: ControlSphere LLC
PID, APC April 22, 2019

Top 5 Control Engineering articles April 15-21

Articles about rate-predictive control, the Engineers' Choice Awards, feedforward control, temperature sensor calibration, and connecting quality and process data were Control Engineering’s five most clicked articles from April 15-21. Miss something? You can catch up here.

By Chris Vavra
Figure 9: Second order control loop Bode analysis can help if the first order gain was insufficient. Courtesy: ControlSphere LLC
PID, APC April 19, 2019

Using IEC 61131-3 programming languages for simulation

See five paybacks of simulation. Use IEC 61131-3 programming languages and modern programming tools to easily integrate simulation to development workflow.

By Gary L. Pratt, P.E.
Shown are outdoor tanks and piping for Angel's Envy Distillery, Louisville, Ky. Courtesy: Mark T. Hoske, CFE Media, Control Engineering
PID, APC April 15, 2019

Top 5 Control Engineering articles April 8-14

Articles about evaluating a system integrator, the Engineers' Choice Awards, IIoT and machine control, questions to ask an SI, and rate-predictive control were Control Engineering’s five most clicked articles from April 8-14. Miss something? You can catch up here.

By Chris Vavra
Figure 3: Running forward. Running forward down a straightaway is easy. With a view of the track ahead, the runner can compensate almost instantaneously to any slow drift to the left or right, even when sprinting at top speed. In much the same way, a feedforward controller applied to a process with limited, measurable disturbances can keep the process variable close to the setpoint easily enough. Running forward around a curve is not all that much more difficult. The runner can visually measure any impending disturbances (curves), anticipate the effect on future trajectory, and make course corrections as needed rather than afterwards. Advance knowledge allows a front-facing runner to round a curve much faster and with much less error than a rear-facing runner can. Advance knowledge allows a feedforward controller to be more aggressive and more accurate. If the controller can correctly predict how a disturbance is going to affect the process variable and how to compensate for it, the controller can afford to apply more assertive control efforts. Doing so can reduce the effects of an impending disturbance just as a runner can stay right in the center of the lane when anticipating upcoming curves. Courtesy: Control Engineering
PID, APC April 8, 2019

Top 5 Control Engineering articles April 1-7

Articles about feedforward control, rate-predictive control, IIoT and machine control, Big Data analysis, and the top stories of March 2019 were Control Engineering’s five most clicked articles from April 1-7. Miss something? You can catch up here.

By Chris Vavra