ETAT Glossary

There are currently 9 names in this directory beginning with the letter H.
Half Duplex
The ability to transmit and receive data, but not simultaneously

A clamp or gripper used as an end-effector to grasp objects. See End-effector, Gripper.

Information in an Ethernet Packet that contains information regarding the packet size, sender and receiver address and transmission type

HMI แบบยืดหยุ่น
เป็นหน้าจอควบคุมอุปกรณ์หรือเครื่องจักรที่มีความยืดหยุ่นตามการใช้งานของผู้ใช้งาน เช่น ใช้บนอุปกรณ์เคลื่อนที่ บนอุปกรณ์ HMI หรืออื่น ๆ ซึ่งอาจจะแสดงฟังก์ชันหรือกราฟิกเฉพาะในส่วนที่จำเป็นเท่านั้น

Home Automation
An array of automation technologies to create smart homes. Clearly, everything from lighting to smart appliances and doorbells fall under this.

Home Automation Network
This is a small energy management system for the home, but also refers to the appliances in the home which will communicate with it to determine the best time of day to function while saving energy or money. The smart meter may be part of this system directly or indirectly.

A device for connecting Ethernet devices that forwards data out of all ports in half duplex mode

Human Machine Interface
(HMI) Sometimes called the (Man Machine Interface) MMI or (Human Computer Interface) HCI. These are nodes at which control engineers monitor their plants, factories, pipelines, and field devices. Often found in control rooms, but sometimes dispersed across the plant oor. These are often running a well known operating system and any internet reachability is of particular concern as these nodes are in control of field or plant devices. Anecdotally, changing a display on an HMI can cause an operator to perform a detrimental safety critical action under false pretences, in a similar manner to Phishing attacks on banking customers today.

Human-Machine Interface (HMI)
The components of a system (machine, tool, appliance, etc.) that handle interactions between humans and the system. HMI components include hardware and software that translate user inputs into signals for the system so that the system produces the desired results for the user.

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