Dyness B51100 - Interface and Communication Details; DIP Switch Configuration

B51100 User Manual
8
Table 2-3 Interface Definition
Item
Name
Definition
1
Power switch
OFF/ON,
must be in the "ON" state when in use
2
Positive socket
Battery output positive or parallel positive line
3
ADD
DIP switch
4
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.
5
SOC
The number of green lights shows the remaining power. Table
2-3 for details.
6
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.
7
RUN
Green light flashing during standby and charging mode.
Green light always on when discharging.
8
COM
Communication cascade port, support RS232
9
CAN/485
Communication cascade port, support CAN/ RS485
communication (factory default CAN communication)
10
DRY CONTACT
/
11
Negative socket
Battery output negative or parallel negative line
12
Grounding
Shell ground connection
2.3.1 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:
When the batteries are connected in parallel, the host communicates with the slaves through
the CAN interface. The host summarizes the information of the entire battery system and
communicates with the inverter through CAN or 485.