Glossary
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Digital
Represents a value that can acquire only definite states
within a finite set, e.g. a voltage. Mostly defined as "0" and
"1".
DIN
Abbreviation for "Deutsches Institut für Normungen e. V."
Dual Code
Natural binary code. Frequently used code for absolute
measurement systems.
EDS
This EDS file primarily defines the Polled I/O Connection, the
COS I/O Connection and the Cyclic I/O Connection of the
gateway. It does not contain data or parameters (easy
object) for functions of the easy basic unit. These functions
are accessed by means of explicit messages.
EEPROM
Abbreviation for “Electrically Erasable Programmable Read-
only Memory“.
EMC
Abbreviation for "Electromagnetic Compatibility". Defines
the ability of electrical equipment to operate error-free and
without causing a negative influence within a certain envi-
ronment.
EN
Abbreviation for “European Norm”.
Earth
In electrical engineering, the term given to conductive
ground with the electrical potential of zero at any point. In
the environment of grounding devices, the electrical poten-
tial may not equal zero, in which case it is called the "refer-
ence earth".
Earthing
Represents the connection of an electrically conductive
component to the equipotential earth via a grounding
device.
Earth electrode
One or several components with direct and good contact to
earth.
ESD
Abbreviation for “Electrostatic Discharge”.
Fieldbus
Data network on the sensor/actuator level. The fieldbus
interconnects the devices at field level. Characteristic
feature of the fieldbus is the highly reliable transfer of
signals and real-time response.
Field power supply
Power supply for the field devices and signal voltage.
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