The effectiveness of an HMI system depends on an exacting design process that incorporates all technical, ergonomic, and communication requirements. Connectivity technologies linking the HMI to the core application directly affects both operator and overall system performance. This key interconnection is critical to overall successful use of the system. Selecting the appropriate communications strategy from hard-wired, serial bus, wireless, and other options demands a careful evaluation of the application and, in most cases, a blend of available technologies.
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