Schneider Electric 890USE17700 manual Can, Cob, Coms, Crc

Glossary

C

CAN	controller area network. The CAN protocol (ISO 11898) for serial bus networks is
	designed for the interconnection of smart devices (from multiple manufacturers) in
	smart systems for real-time industrial applications. CAN multi-master systems
	ensure high data integrity through the implementation of broadcast messaging and
	advanced error mechanisms. Originally developed for use in automobiles, CAN is
	now used in a variety of industrial automation control environments.
CANopen	An open industry standard protocol used on the internal communication bus. The
protocol	protocol allows the connection of any standard CANopen device to the island bus.
CI	command interface.
CiA	CAN in Automation. CiA is a non-profit group of manufacturers and users dedicated
	to developing and supporting CAN-based higher layer protocols.
COB	communication object. A communication object is a unit of transportation (a
	message) in a CAN-based network. Communication objects indicate a particular
	functionality in a device. They are specified in the CANopen communication profile.
COMS	island bus scanner.
configuration	The arrangement and interconnection of hardware components within a system and
	the hardware and software selections that determine the operating characteristics of
	the system.
CRC	cyclic redundancy check. Messages that implement this error checking mechanism
	have a CRC field that is calculated by the transmitter according to the message’s
	content. Receiving nodes recalculate the field. Disagreement in the two codes
	indicates a difference between the transmitted message and the one received.

D

DeviceNet	DeviceNet is a low-level, connection-based network that is based on CAN, a serial
protocol	bus system without a defined application layer. DeviceNet, therefore, defines a layer
	for the industrial application of CAN.

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