Schneider Electric 890USE17700 manual Interbus

Glossary

industrial I/O	An Advantys STB I/O module designed at a moderate cost for typical continuous,
	high-duty-cycle applications. Modules of this type often feature standard IEC
	threshold ratings, usually providing user-configurable parameter options, on-board
	protection, good resolution, and field wiring options. They are designed to operate
	in moderate-to-high temperature ranges.
input filtering	The amount of time that a sensor must hold its signal on or off before the input
	module detects the change of state.
input polarity	An input channel’s polarity determines when the input module sends a 1 and when
	it sends a 0 to the master controller. If the polarity is normal, an input channel will
	send a 1 to the controller when its field sensor turns on. If the polarity is reverse, an
	input channel will send a 0 to the controller when its field sensor turns on.
input response	The time it takes for an input channel to receive a signal from the field sensor and
time	put it on the island bus.
INTERBUS	The INTERBUS fieldbus protocol observes a master/slave network model with an
protocol	active ring topology, having all devices integrated in a closed transmission path.
IP	internet protocol. That part of the TCP/IP protocol family that tracks the internet
	addresses of nodes, routes outgoing messages, and recognizes incoming
	messages.

L

LAN	local area network. A short-distance data communications network.
light industrial	An Advantys STB I/O module designed at a low cost for less rigorous (e.g.,
I/O	intermittent, low-duty-cycle) operating environments. Modules of this type operate in
	lower temperature ranges with lower qualification and agency requirements and
	limited on-board protection; they usually have limited or no user-configuration
	options.
linearity	A measure of how closely a characteristic follows a straight-line function.
LSB	least significant bit, least significant byte. The part of a number, address, or field that
	is written as the rightmost single value in conventional hexadecimal or binary
	notation.

180 890USE17700 April 2004