Baumuller b maXX BM3400 Series - 6.13.5 Fieldbus interface CAN

T 6 Installation
6.13.5 Fieldbus interfae CAN
The front-sided d ouble RJ45 connector X45 has the following a ssignment
1
2
3
4
5
6
1
2
3
4
5
6
7
8
7
8
Figure 6.45: Communication connection CAN
Pin no. Assignment
1 CAN - H
2 CAN - L
3 GND
4 SYNC +
5 SYNC -
6 Not assigned
7 GND
8 Not assigned
The hex-switches S40 and S41 are used to assign node number and baudrate. Both switches provide an 8-bit
information, from which 7 bits represent the node number and the MSB for switchover between 125 kBit/s
and 500kBit/s is used. The node number results from a (3-bit-)value from S40 * 16 + value of S41.
The following table shows a few configuring examples.
S40 S41 Address Baudrate
0 1 1 125kBit/s
8 1 1 500kBit/s
7 F 127 125kBit/s
F F 127 500kBit/s
NOTE
According to the transmission line theory both ends of the bus have to be terminated. For this
the CAN terminating resitors in «Appendix B - Spare par ts and accessories» on page 157 can be
used.
102 Instrution Manual b maXX ® BM3400
from 206 Doument No.: 5.07013.03 Baumueller Kamenz GmbH