Huawei Batteries

1 Supported Models
2 Communication Method
3 Wiring Diagram
4 Physical Installation
5 Device Configuration
6 Power Center Configuration
- 6.1 ID Assignments
7 Supported Parameters
8 Alarms List
9 Manufacturer Data

Supported Models

ESM-48200A1

Communication Method

RS485 (Modbus)

Wiring Diagram

Physical Installation

The LAN cable is used for communication and battery reading. One end of the cable has an RJ45 connector, while the opposite end remains open. Below are the LAN cable pins designated for RS485 communication.
- PIN 1&4 - RS485 A
- PIN 2&5 - RS485 B

Connect the LAN cable to the COM OUT port of the battery (the LAN port on the right). Ensure that the right-side connector is used to connect the first battery to the computer, while the left-side connector is designated for linking the first battery to the second, third, fourth, and so on.

It is recommended, whenever possible, to connect the smart batteries to RS485 Port 2, separately from other RS485-connected devices and sensors such as fuel sensors, power meters, etc. This approach enhances surge protection for the batteries and isolates them from potential surges affecting the other RS485-connected devices.

Connect the RS485 communication cable as referenced in Step 1 above.

Device Configuration

Download and open the Huawei Maintenance Tool Platform.
Select the Language, COM port, and Device (Lithium Battery), then click Connect.
You will be logged into the battery interface, as shown below.
Note - By logging into the battery, you can view key values such as voltage and current. This allows you to compare these readings with the values displayed on the Power Center to ensure accuracy and consistency.

Power Center Configuration

ID Assignments

Battery	Physical ID	Virtual ID	Baudrate
1	214	70	9600
2	215	71	9600
3	216	72	9600
4	217	73	9600
5	218	74	9600
6	219	75	9600

Supported Parameters

Power Center Parameters	System Parameters	Remarks

Power Center Parameters	System Parameters	Remarks
Voltage	Smart_Battery_X.Voltage [V]
Current	Smart_Battery_X.Current [A]
Battery_Rated_Capacity	Smart_Battery_X.Total Capacity
Cells_Count	Smart_Battery_X.Total Cell
Battery_SOC_Percentage	Smart_Battery_X.SOC
Temperature_1	Smart_Battery_X.Temperature_Max [Celsius]	Max Cell Temp
Temperature_2	Smart_Battery_X.Temperature_Min[Celsius]	Min Cell Temp
Status		Module Mode: 0: hibernating; 1: low power; 2: charge; 3: discharge; 4: standby; 0xFFFF: unknown

Alarms List

TBA