All Operator Interface

The operator interface is the medium by which humans interact with automation systems. It is typically used in the form of an HMI, touchscreen, or display terminal, and presents information to the operator in a graphical format. Operators use HMIs to monitor processes, control machinery, and view status information in real time. Therefore, it is important to have an interface that is easy to read and navigate. Industrial operator interfaces provide the operator with access to information about the status of the automation system including alarms, setpoints, trends, and performance data. Information can be presented in various formats such as graphs, charts, trends and alphanumeric displays.

An operator interface provides a means for the operator to quickly interpret the status of the automation system and take action when alarms occur, or when production stops. A well-designed interface can help prevent mistakes, which can result in lost production and potential safety issues. HMI hardware for industrial applications must be rugged and reliable. Typically, industrial HMIs have to operate in high and low temperature conditions, high vibration, high electrical noise, and around-the-clock usage. Most devices offer options for redundant power supplies to ensure continuous operation, as well as conformal coatings to withstand humidity and cleaning products.