High performance HMIs for increased efficiency and overall process safety

Before computers were widely available in manufacturing, operator interfaces consisted of lights, rotary readouts, and control charts. These components were mounted on a wall in the control room, and required operators to physically interact with them to run the process. Early computer graphics were used to shrink the operator interface to fit on a monitor but were rudimentary and made it easy for the operators to be overwhelmed with data. As computer graphics progressed, and the world at large became familiar with general business computing, industrial graphics followed suit, leading to the 3D rendered process environments common in most human-machine interface (HMI) marketing materials over the past few years. While these graphics look great in a brochure, they can get in an operator’s way leading to confusion and additional productivity losses during process upsets. Process control system complexity On a parallel path to the advancements in computer graphics, process control system


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