Omron NSJ CONTROLLERS - 03-2008 Operation Manual page 90

Specifications
DeviceNet Section Communications Specifications
Item
Communications protocol
DeviceNet master/slave
Connection forms (See
note 1.)
Terminating resistance
Baud rate
Communications distances Baud rate
Max. number of Slaves
Error control
Cable
Note
DeviceNet
Can function as master or slave.
Combination of multi-drop and T-branch connections (for trunk or branch lines)
SW4 (TER) is used to connect/disconnect terminating resistance. The TER indicator lights
when terminating resistance is connected.
500 kbps, 250 kbps, or 125 kbps (Set via DIP switch.)
Network length
500 kbps 100 m max.
250 kbps 250 m max. (See note 2.)
125 kbps 500 m max. (See note 2.)
63 Slaves
CRC error check, node address redundancy check, scan list verification
Special 5-wire cable (2 signal lines, 2 power lines, 1 shield line)
(1) Terminating resistance is required at both ends of the trunk line.
(2) Keep the maximum network length to 100 m or less when using Thin Ca-
bles.
Specifications
Branch line length Total branch line
6 m max.
6 m max.
6 m max.
Section 3-1
length
39 m max.
78 m max.
156 m max.
59