Eaton Electrical EZ204-DP user manual Namur

NAMUR	Abbreviation for “Normen-Arbeitsgemeinschaft für Mess- und
	Regeltechnik” (Standards Work Group for Instruments and
	Controls). NAMUR proximity switches represent a special
	category of 2-wire proximity switches. They are highly
	resistant to interference and reliable due to their special
	construction, e.g. low internal resistance, few components
	and short design.
Overhead	System management time required in the system in each
	transmission cycle.
Parameter assignment	Assignment of parameters in the configuration software of
	the DP master for the individual stations on the bus and their
	modules.
PLC	Abbreviation for Programmable Logic Controller.
Potential-free	Galvanic isolation between the reference potentials of the
	control and load circuit of I/O modules.
PROFIBUS-DP	PROFIBUS bus system with the DP protocol. DP stands for
	“decentralized periphery”.
	PROFIBUS-DP is based on DIN 19245 Part 1+4, and was
	integrated in the European fieldbus standard EN 50170. It is
	used for high-speed data exchange between the central DP
	master and the decentralized peripheral devices, the DP
	slaves. The comprehensive use is implemented by means of
	a multi-master concept.
PROFIBUS-DP address	Each PROFIBUS-DP station is assigned an unambiguous
	PROFIBUS-DP address by means of which it can be
	addressed by the master.
PROFIBUS-DP master	The PROFIBUS-DP master is the central station and controls
	the PROFIBUS access of all PROFIBUS-DP slaves.
PROFIBUS-DP slave	PROFIBUS-DP slaves are addressed by the PROFIBUS-DP
	master and exchange data with it at its request.
Protected against short-circuit	Property of electrical equipment. Short-circuit-proof
	equipment has the ability to withstand the thermal and
	dynamic loads that may occur at the location of installation on
	account of a short-circuit.

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