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Automation Glossary

E-Stop, Emergency Stop

A safety button that will immediately stop all axis movement when pressed.

Encoder

A device which measures angular position and can therefore be read by a position control system.

EnDat

Encoder Data, is a proprietary protocol developed by Heidenhain

ESTA

Entertainment Services & Technology Association

Ethernet

Ethernet is the most widely-installed local area network (LAN) technology. Ethernet was named by Robert Metcalfe, one of its developers, after the passive substance called ‘luminiferous ether’ that was once thought to pervade the universe, illustrating the way that Ethernet cabling, also a passive medium, could similarly carry data everywhere throughout the network.