Epever Scc Entities Sensor Modbus Register 36877: Scc name Low Voltage Disconnect Voltage

Technical Definition

The register scc name Low Voltage Disconnect Voltage at address 36877 is used to monitor scc name low voltage disconnect voltage on the Epever Scc Entities Sensor.

• Protocol: Modbus RTU
• Data Type: U WORD
• Unit: V
• 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 scc_name Low Voltage Disconnect Voltage (Address: 36877)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=36877, 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: "scc_name Low Voltage Disconnect Voltage"
  address: 36877
  value_type: U_WORD
  unit_of_measurement: "V"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Epever Scc Entities Sensor]

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

💡 Engineer's Insight

Analysis: Epever SCC: Voltage at which battery disconnect occurs due to low voltage. Units: Volts (V).

Troubleshooting: Potential loss of communication, incorrect register address, or device malfunction.