Dyness B3 - Detailed Interface Port Descriptions; DIP Switch Configuration

B3 ESS Unit User Manual
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7
Table 2-3 Interface Definition
Item
Name
Definition
1
Power switch
OFF/ON,
must be in the "ON" state when in use
2
Ground connection
point
Shell ground connection
3
Positive socket
Battery output positive or parallel positive line
4
Negative socket
Battery output negative or parallel negative line
5
SW (battery
wake/sleep switch)
When the "OFF/ON" switch button is in the ON state,
press and hold this button for 3 seconds to put the
battery into the power-on or off state.
6
SOC
The number of green lights on shows the remaining
battery
power. See Table 2-3 for details.
7
ALM
Red light flashing when an alarm occurs, red light always
on during protection status. After the condition of trigger
protection is relieved, it can be automatically closed.
8
RUN
Green light flashing during standby and charging mode.
Green light always on when discharging.
9
CAN/485
Communication cascade port, support CAN/ RS485
communication (factory default CAN communication)
10
DRY CONTACT
/
11
ADD
DIP switch
DIP switch definition and description
Table 2-4 Interface Definition
DIP switch position (master communication protocol and baud rate selection)
#1
#2
#3
#4
Define different protocols； Distinguish between
master and slave
Baud rate selection
OFF：CAN: 500K,485: 9600
ON：CAN: 250K,485: 115200
DIP switch description: