What is HMI? | Human Machine Interface

🎥 An HMI or Human Machine Interface is simply a control unit that facilitates the integration of operators into complicated industrial processes by delivering a user-friendly dashboard.

By watching this video, you’ll get the answer to these questions:
- What is HMI?
- Why is HMI used?
- Where is HMI used?
- What is HMI design?
- How does HMI work?
- What is HMI software?
- What is HMI Hardware?
- What is the HMI function?
- What does HMI stand for?
- What are the types of HMI?
- What is HMI programming?
- What is the purpose of HMI?
- What are the advantages of HMI?
- How does HMI communicate with a PLC?

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💬 Video Summary:

HMI Explained
- Because PLC is just hardware, it cannot display signal values instantly to operators unless technical staff with a personal computer and necessary software establish a connection to the PLC and check the program status online to keep an eye on signal values.

- It is not a practical method for operations employees to regularly check what the PLC is doing, and that’s where a human-machine interface, or HMI for short, comes into play.

HMI Types
- A variety of HMIs is available in an industrial setting, such as touchscreen, screen with buttons, built-in screen, handheld screen, computer screen, and mobile screen

HMI Hardware
- The hardware layouts of most actual HMIs are similar, which include the following: screen for monitoring, control panel, and communication port

HMI Software
- The software configurations of most genuine HMIs are alike, which applies in two steps.

- First, development. A personal computer is used to program the HMI through special software. And the Second step that applies in the HMI software configuration is runtime.

HMI Design
- If you are interested in HMI programming, you should consider some essential design tips, such as user awareness, visibility, simplicity, and consistency

HMI to PLC communication
- For the HMI to provide an interface for a manufacturing line, the HMI usually needs to be connected to a programmable logic controller or PLC.

- Compatibility between the HMI and PLC is required, meaning they must be able to communicate with one another.

HMI Operation:
- The PLC will receive information from sensors and will start processing the collected data into logical combinations.

- As soon as the PLC provides real-time data directly to the HMI, the HMI is used to convert complicated process variables into information in the form of a graphical way.

- At this point, the operator can send commands through the HMI screen, and the HMI will transfer user inputs to the PLC to be processed into the logical format.

- Then the PLC sends translated data to the actuators to be executed over a given industrial process system.

HMI Function
- Most HMIs have the same basic and extensively utilized functionality, such as monitoring, controlling, alarms management, data logging, and troubleshooting

HMI Advantages:
- And finally, let us talk about the benefits of implementing HMIs, including increased visibility, enhanced efficiency, decreased downtime, ensure safety, ease-of-use, and cost reduction.

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⏰ TABLE OF CONTENTS ⏰
00:00 What is an HMI?
00:55 HMI Types
01:57 HMI Hardware
02:21 HMI Software
03:39 HMI Interface with PLC
04:54 HMI Functionality
06:08 HMI Benfits

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