Device Seplosbmsv3 Modbus Register 4105: Name bms name average cell Temperature

Technical Definition

The register name bms name average cell Temperature at address 4105 is used to monitor name bms name average cell Temperature on the Device Seplosbmsv3.

• Protocol: Modbus RTU
• Data Type: S WORD
• Unit: °C
• Access: Read Only

How to Read (Python pymodbus)

Use this code snippet to read this specific value via RS485:

from pymodbus.client.sync import ModbusSerialClient

client = ModbusSerialClient(method='rtu', port='/dev/ttyUSB0', baudrate=9600)
client.connect()

# Read name_bms_name_average_cell_temperature (Address: 4105)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=4105, count=2, unit=1)

if not result.isError():
    print(f"Raw Value: {result.registers}")
else:
    print("Error reading register")

client.close()

Integration (Home Assistant)

Paste this into your configuration.yaml:

- platform: modbus_controller
  name: "name_bms_name_average_cell_temperature"
  address: 4105
  value_type: S_WORD
  unit_of_measurement: "°C"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Device Seplosbmsv3]

    PLC -- "A+ (D+)" --> Device
    PLC -- "B- (D-)" --> Device
    PLC -- GND --> Device

💡 Engineer's Insight

Analysis: Average Temperature of battery cells (°C). Critical for optimal performance and longevity.

Troubleshooting: Unusual values suggest sensor failure, poor ventilation, or thermal runaway. Check ambient conditions and sensor integrity.