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Product Description XI/ON - Eaton Automation

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<strong>XI</strong>/<strong>ON</strong>: Gateways for Modbus TCP 10 Glossary<br />

F<br />

G<br />

EN<br />

German acronym for European Standard.<br />

ESD<br />

Electrostatic Discharge.<br />

Field power supply<br />

Voltage supply for devices in the field as well as the signal voltage.<br />

Fieldbus<br />

Data network on sensor/actuator level. A fieldbus connects the<br />

equipment on the field level. Characteristics of a fieldbus are a high<br />

transmission security and real-time behavior.<br />

Force Mode<br />

Software mode which enables the user to set his plant to a required<br />

state by forcing certain variables on the input and output modules.<br />

GND<br />

Abbreviation of ground (potential "0").<br />

Ground<br />

Expression used in electrical engineering to describe an area whose<br />

electrical potential is equal to zero at any given point. In neutral<br />

grounding devices, the potential is not necessarily zero, and one<br />

speaks of the ground reference.<br />

Ground connection<br />

One or more components that have a good and direct contact to<br />

earth.<br />

Ground reference<br />

Potential of ground in a neutral grounding device. Unlike earth<br />

whose potential is always zero, it may have a potential other than<br />

zero.<br />

216 M001973-01, 07/2007

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