Can Bus - Dynacord Promatrix 6000 Operation Manual

18 en | Connection
6.4

CAN BUS

This section contains information about the connection of the device to the CAN BUS and the
correct setting of the CAN address.
Connection
The device has two RJ-45 jacks for the CAN BUS. The jacks are connected in parallel, and act
as an input and for daisy chaining the network. The CAN bus allows different data rates to be
used, where the data rate is indirectly proportional to the bus length. If the network is small,
data rates of up to 500 kbit/s are possible. In larger networks, the data rate must be
decreased (down to the minimum data rate of 10 kbit/s), please refer to section Configuring
the CAN baud rate.
Notice!
The data rate is preset to 10 kbit/s in the factory.
The following table explains the relationship between data rates and bus lengths/network
size. Bus lengths of over 1,000 m must be implemented only with CAN repeaters.
Data rate (in kbit/s)
500
250
125
62.5
Table 6.1: Data rate and bus length of the CAN BUS
The following diagrams show the assignment of the CAN port/CAN connector.
Figure 6.1: Assignment of the CAN port
18-Jun-2015 | 03 | F01U306895
Bus length (in meters)
100
250
500
1000
Operation manual
Promatrix 6000 Router