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what is HMI?
A Human Machine Interface (HMI) is a user interface or dashboard that connects a person to a machine, system, or device. While the term can technically be applied to any screen that allows a user to interact with a device, HMI is most commonly used in the context of an industrial process. ndustrial control systems continue to advance, and in today's world, the tasks operators need to complete can change frequently. To handle this complexity, you need flexibility and usability in your controls. That is the benefit of HMI.

Although HMI is the most common term for this technology, it is sometimes referred to as Man-Machine Interface (MMI), Operator Interface Terminal (OIT), Local Operator Interface (LOI), or Operator Terminal (OT). HMI and Graphical User Interface (GUI) are similar but not synonymous: GUIs are often leveraged within HMIs for visualization capabilities.

Common Uses of HMI
HMIs communicate with Programmable Logic Controllers (PLCs) and input/output sensors to get and display information for users to view. HMI screens can be used for a single function, like monitoring and tracking, or for performing more sophisticated operations, like switching [[machines off or increasing production speed, depending on how they are implemented.

HMIs are used to optimize anindustrial process by digitizing and centralizing data for a viewer. By leveraging HMI, operators can see important information displayed in graphs, charts, or digital dashboards, view and manage alarms, and connect with SCADA and MES systems, all through one console.

Previously, operators would need to walk the floor constantly to review mechanical progress and record it on a piece of paper or a whiteboard. By allowing PLCs to communicate real-time information straight to an HMI display, HMI technology eliminates the need for this outdated practice and thereby reduces many costly problems caused by lack of information or human error.

How to integrate HMI
HMI solutions can come in a variety of forms, from standalone terminals to tablets to dashboards integrated into other pieces of machinery. A facility may have one central HMI or numerous distributed ones, which may all be connected through the Internet.

Types of HMI
HMI allows you to manage a variety of process controls and visualizations. The simplest type is the models that input through the touch screen, and the most advanced type is the control panels that are used for very complex industrial automation systems.

HMI key pad
As the name implies, this HMI is a type of control panel with buttons, each of which has its own use. Many factories use this HMI model to increase their efficiency and production. With this HMI model, the user can issue different commands to one or more machines with just one easy-to-use interface. When all the commands are combined in one place, manual control of the machine by the operator will be very convenient.

HMI data control
This type of HMI is used to collect data, this information can be transferred to a printer or computer depending on the user. This HMI is used in cases where we are dealing with a lot of data. This type of HMI is used if in a process that requires data to be collected from machines or equipment.

HMI Supervisor
The third type of HMI is the HMI type of monitor, which typically works with the Windows operating system. The use of this type of HMI, due to the graphic and touch screen, allows the highest level of user interaction with machines and processes. Of course, this type of HMI is the most common type of HMI.

HMI application
Among the uses of this product, we can mention various cases, including the following:

Handheld portable equipment
 * machinery
 * Central control rooms
 * Control processes
 * Industrial and construction automation
 * Digital markers
 * Automatic vending machines
 * pharmaceutical Industries
 * Automotive industry
 * Home electrical equipment

HMI brands

 * SIEMENS
 * Omron
 * Delta
 * FATEK
 * MITSUBISHI ELECTRIC
 * SCHNEIDER ELECTRIC
 * AND MORE..