Zirkulationspumpe Modbus Register 600: Name Strömungsschalter an der Brauchwasser Leitung

Technical Definition

The register name Strömungsschalter an der Brauchwasser Leitung at address 600 is used to monitor name strömungsschalter an der brauchwasser leitung on the Zirkulationspumpe.

• Protocol: Modbus RTU
• Data Type: U 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 name Strömungsschalter an der Brauchwasser Leitung (Address: 600)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=600, 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 Strömungsschalter an der Brauchwasser Leitung"
  address: 600
  value_type: U_WORD
  unit_of_measurement: ""

Connection Diagram

Here is the standard RS485 wiring for this configuration:

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

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

💡 Engineer's Insight

Analysis: Flow Switch (Boolean/Status). Indicates if flow is detected in the domestic hot water line.

Troubleshooting: Zero/Off: No flow, pump issue, blockage, or sensor fault. Unexpected On: Faulty sensor or continuous pump operation.