Comparing the Different Types of HMIs
Human machine interfaces (HMI) is a multi-billion industry that continues to grow larger and more widespread with each passing year. In fact, current estimates predict the industry to reach $6.31 billion by 2022.
The Pushbutton Replacer
Among the most common types of HMIs is the pusbutton replacer. As the name suggests, this is a central control panel consisting of multiple buttons, each of which has a specific function. Many industrial factories use pushbutton replacers to improve their efficiency and productivity. They allow workers to perform various commands on one or more machines through the use of a single, convenient interface. Having all of the commands centralized in a single location is a huge improvement over manual operation of machines.
The Data Handler
Another commonly used type of HMI is the data handler. This HMI is primarily used for gathering/harvesting data, at which point it may be sent a hard drive or printed out, depending on the user's command. Data handlers are particularly useful in applications involving large amounts of data. If a company needs to collect data from a machine or piece of equipment, it will likely use a data handler HMI.
