Tag Archive: resolution

Aug
01

Commissioning Control Systems – Resolution and Deadband

As addressed in my July 18th and July 25th blogs, to achieve best control performance, it is important that the final control element moves to a position that matches that requested by the control system. The minimum size of change in the PID output that the control element can respond to can be quickly confirmed …

Continue reading »

Jun
20

Duty Cycle Control

Duty Cycle Control Example

As discussed in Chapter 11 of Control Loop Foundation – Batch and Continuous Processes, some field devices used in the process industryrequire that the control system provide a pulsed output interface. For example, in the plastics industry extruders are often used to process plastic pellets into various products. Plastic pellets are fed into the barrel …

Continue reading »