Can Bus Interface - Victron energy SmartSolar MPPT 150/70-Tr VE.Can Manual

3.6 CAN bus interface

The charger is equipped with two CAN bus RJ45 sockets.
The CAN bus on this charger is not galvanically isolated. The CAN bus is
referenced to the minus battery connection.
The CAN bus interface will be referenced to ground if the minus pole of the
battery is grounded. In case of a positive grounded system, a CAN isolation
module will be needed to reference the CAN bus interface to ground.
The end of a CAN cable should have a bus terminator. This is achieved by
inserting a bus terminator in one of the two RJ45 connectors and the CAN
cable in the other. In case of a node (two CAN cables, one in each RJ45
connector), no termination is needed.
Supply voltage (V+ supply): 9V-70V
Maximum supply current: 500mA
Data rate: 250 kbps
CANH/CANL voltage tolerance: +/-70V
DC
CAN transceiver ISO specification: ISO 11898-2:2016
To provide maximum flexibility, the battery voltage is used for the V+
supply line of VE.CAN. This means that all equipment connected to
VE.CAN are a permanent load to the battery.
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