Boiler 01 Modbus Register 1632: Name Boiler 1 Pumpe Ansteuerung

Technical Definition

The register name Boiler 1 Pumpe Ansteuerung at address 1632 is used to monitor name boiler 1 pumpe ansteuerung on the Boiler 01.

• 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 Boiler 1 Pumpe Ansteuerung (Address: 1632)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=1632, 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 Boiler 1 Pumpe Ansteuerung"
  address: 1632
  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[Boiler 01]

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

💡 Engineer's Insight

Analysis: Boiler 1 Pump Control (On/Off or Status). Indicates the operational state of the boiler's circulation pump.

Troubleshooting: Zero might mean pump is off, failed, or control signal is missing. Check pump, wiring, and control logic.