User's Manual

6
LIRNFE00-01
CAN BUS
AUTEC - Air series
5 CAN BUS
The CAN BUS port is used to connect the receiving unit in a network that communicates
through CANopen® protocol.
5.1 Wiring the CAN network
Use CAN_H and CAN_L to wire the CAN network.
Use CAN_GND to wire GND of CAN network.
A coiled and shielded cable should be used. In this case, use CAN_SHLD to wire the shield.
CAN_GND
CAN_L
CAN_T
CAN BUS
CAN_H
CAN_SHLD
120 Ω
MVRCAN
1
2
3
4
5
JT1
Both ends of CAN networks must be terminated with a 120 Ω resistor between CAN_H and
CAN_L.
A B C
120
120
CAN_H
CAN_L
CAN_GND
Ω
Ω
A Node 1
B Node 2
C Node n
If the MVRCAN receiving unit is at the beginning or at the end of the network,
connect outputs CAN_T and CAN_L so that the line termination is connected.
CAN_GND
CAN_L
CAN_T
CAN BUS
CAN_H
CAN_SHLD
120 Ω
MVRCAN
1
2
3
4
5
JT1
All CAN network nodes must have the same bit rate. The bit rate de󰘰nes the maximum length
for the network:
Bitrate (kbit/s) 1000 800 500 250 125 100 50 20 10
Approximate network
length (m)
30 50 100 250 500 600 1000 2500 5000