Fairbanks FB2255 Series Instrument PC2255 PC Software Utility Program - Manual (Page 39)

Section 6: Fieldbus/Bluetooth
01/13 39 51297 Rev. 1
5.2.2. DEVICENET ( 29578 )
DEVICENET is a low-cost communications link that connects industrial devices to
a network, eliminating expensive hardwiring.
– It is based on a broadcast-oriented, communications protocol the CAN.
– The CAN Protocol was originally developed by BOSCH for the European
automotive market for replacing expensive wire harnesses with low-cost
network cable.
– The CAN Protocol has fast response and high reliability for applications like
anti-lock brakes and air bags.
DEVICENET also provides power to the network. This allows devices with limited
power requirements to be powered directly from the network.
– This reduces connection points and physical size.
– The maximum network size is up to 64 Nodes, with message data packets up
to 8 bytes.
NOTE: Additional information and EDS files are available at the following website.
http://www.hms.se/products/devicenet.shtml .
Wire SIGNAL DESCRIPTION
1 V Negative bus supply voltage
2 CAN_L CAN low bus line
3 SHIELD Cable shield
4 CAN_H CAN high bus line
5 V+ Positive bus supply voltage