Schneider Electric 890USE19600 Version 1.0, INTERBUS Basic Network Interface Module manual

Glossary

NIM	network interface module. This module is the interface between an island bus and
	the fieldbus network of which the island is a part. A NIM enables all the I/O on the
	island to be treated as a single node on the fieldbus. The NIM also provides 5 V of
	logic power to the Advantys STB I/O modules in the same segment as the NIM.
NMT	network management. NMT protocols provide services for network initialization,
	error control, and device status control.

O

object dictionary	(aka object directory) Part of the CANopen device model that provides a map to the
	internal structure of CANopen devices (according to CANopen profile DS-401). A
	device’s object dictionary is a lookup table that describes the data types,
	communications objects, and application objects the device uses. By accessing a
	particular device’s object dictionary through the CANopen fieldbus, you can predict
	its network behavior and build a distributed application.
open industrial	A distributed communication network for industrial environments based on open
communication	standards (EN 50235, EN50254, and EN50170, and others) that allows the
network	exchange of data between devices from different manufacturers.
output filtering	The amount that it takes an output channel to send change-of-state information to
	an actuator after the output module has received updated data from the NIM.
output polarity	An output channel’s polarity determines when the output module turns its field
	actuator on and when it turns the actuator off. If the polarity is normal, an output
	channel will turn its actuator on when the master controller sends it a 1. If the polarity
	is reverse, an output channel will turn its actuator on when the master controller
	sends it a 0.
output response	The time it takes for an output module to take an output signal from the island bus
time	and send it to its field actuator.

62 890USE19600 April 2004