DeviceNet Communication Specifications

Item	Specification
Supported Connection	I/O messaging connection (Polling, Strove, Cyclic, Change of State) Explicit messaging connection All connections are conformed to DeviceNet communication protocol.
Baud Rates (bps)	125 kbps, 250 kbps, 500 kbps
Transfer Distance	Baud Rates	Max. Network Length	Drop Line Length	Total Drop Line Length
	500 kbps	100 m	6 m or under	39 m or under
	250 kbps	250 m *	6 m or under	78 m or under
	125 kbps	500 m *	6 m or under	156 m or under
Maximum Nodes	64 (including master unit)
Data Length / Frame	8 bytes (data can be divided and transferred.)
Bus Access	CSMA/NBA
Error Detection	CRC error / Duplicate node address check
Cable	5-wire cable dedicated to DeviceNet (2 wires for signal, 2 wires for power supply, 1 shield wire)
Communications Power Supply Voltage	24 V DC (supplied from a connector)

* When thin cable is used for trunk line, the maximum network length is 100 m.