General Modbus Register 3050: S 3050

Technical Definition

The register s 3050 at address 3050 is used to monitor s 3050 on the General.

• Protocol: Modbus RTU
• Data Type: U WORD
• Unit: m3/h
• 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 s_3050 (Address: 3050)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=3050, 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: "s_3050"
  address: 3050
  value_type: U_WORD
  unit_of_measurement: "m3/h"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

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

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

💡 Engineer's Insight

Analysis: Register 3050: Often a critical process variable or measurement. Units commonly include physical quantities like pressure (bar, psi), flow (l/min), or Temperature (°C).

Troubleshooting: If 0: Suggests no flow/pressure, sensor malfunction, or measurement out of range. Check physical conditions and sensor integrity.