SKF CMPT CTU, Инструкция по эксплуатации

Страница: 26 / 35

CTU CAN-bus
CTU CAN-bus Connection
SKF Copperhead Transmitter Unit CMPT CTU 10-26
Instruction Manual
The CAN-Bus has to be terminated with 120 Ω on both ends as shown in Figure 10-8,
below. The can-bus cable should be a two-wire twisted pair. Wires between each unit
must be as short as possible. If wires are too long, perturbation may appear on the bus
and alter the data.
120 O
h
m
120 O
h
m
CANBUS High
CANBUS Low
Power +24 VDC
Power GND
GND GND
Figure 10-8:
Two CTU transmitters wired for CAN-bus connectivity
Network problems are often caused by not using proper termination at both ends,
wrong bit rates for cable lengths, incorrectly installed cables and/or poor signal quality.
For more information, refer to:
"Controller Area Network", by Konrad Etschberger, ISBN N 3-00-007376-0
http://en.wikipedia.org/wiki/Controller%E2%80%93area_network