Table B-2. Features Of A Devicenet Network; Table B-3. Devicenet Data Rates Relative To Cable Type And Length - adept technology Adept RS-232/TERM User Manual

Table B-2. Features of a DeviceNet Network

Network Size
Network Length
Baud Rate
125 Kbps
250 Kbps
500 Kbps
Data Packets
Bus Topology
Bus Addressing
System Features
The baud rate of the system depends on the length of the network (end-to-end) and the
type of cable. Table B-3
maximum data rate on the network.
cable.

Table B-3. DeviceNet Data Rates Relative to Cable Type and Length

Data Rates
Thick Trunk Length
Thin Trunk Length
Maximum Drop Length
Cumulative Drop Length
A maximum of 64 nodes [0...63]
Selectable, end-to-end network distance varies with speed
Distance (thick cable)
500 m (1,640 ft.)
250 m (820 ft.)
100 m (328 ft.)
0-8 bytes
Linear (trunkline/dropline); power and signal on the same
network cable
Multi-Master and Master/Slave special case; polled
Removal and replacement of devices from the network under
power not supported by Adept
shows how cable selection and trunkline length affect the
Figure B-2
125 Kbps
500 m
(1,640 ft.)
100 m
(328 ft.)
6 m
(20 ft.)
156 m
(512 ft.)
Adept SmartController User's Guide, Rev. E
DeviceNet Physical Layer and Media
shows a thick cable, and
250 Kbps
250 m 100 m
(820 ft.) (328 ft.)
100 m 100 m
(328 ft.) (328 ft.)
6 m 6 m
(20 ft.) (20 ft.)
78 m 39 m
(256 ft.) (128 ft.)
B-3, a thin
Figure
500 Kbps
119