Default Enm 223 R1 Plc Lite Modbus Register 244: Enm prefix Angle L1

Technical Definition

The register enm prefix Angle L1 at address 244 is used to monitor enm prefix angle l1 on the Default Enm 223 R1 Plc Lite.

• Protocol: Modbus RTU
• Data Type: S WORD
• Unit: °
• 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 enm_prefix Angle L1 (Address: 244)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=244, 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: "enm_prefix Angle L1"
  address: 244
  value_type: S_WORD
  unit_of_measurement: "°"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Default Enm 223 R1 Plc Lite]

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

💡 Engineer's Insight

Analysis: Phase angle in degrees (°), likely relating to Line 1 voltage and current. Useful for power factor calculations.

Troubleshooting: Zero or erratic values suggest issues with signal conditioning, wiring, or meter calibration.