Glossary
D301087 0308 - BL20 CANopen9-4
EMC
Electromagnetic compatibility – the ability of an electrical part to operate in a
specific environment without fault and without exerting a negative influence on
its environment.
EN
German acronym for European Standard.
ESD
Electrostatic Discharge.
Field power supply
Voltage supply for devices in the field as well as the signal voltage.
Fieldbus
Data network on sensor/actuator level. A fieldbus connects the equipment on
the field level. Characteristics of a fieldbus are a high transmission security and
real-time behavior.
Force Mode
Software mode which enables the user to set his plant to a required state by
forcing certain variables on the input and output modules.
GND
Abbreviation of ground (potential "0").
Ground
Expression used in electrical engineering to describe an area whose electrical
potential is equal to zero at any given point. In neutral grounding devices, the
potential is not necessarily zero, and one speaks of the ground reference.
Ground connection
One or more components that have a good and direct contact to earth.
Ground reference
Potential of ground in a neutral grounding device. Unlike earth whose potential
is always zero, it may have a potential other than zero.
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