A32 Pro Esp32 S3 Modbus Register 134: S5140 Channel 35 Temperature - Blower Air

Technical Definition

The register S5140 Channel 35 Temperature - Blower Air at address 134 is used to monitor s5140 channel 35 Temperature - blower air on the A32 Pro Esp32 S3.

• Protocol: Modbus RTU
• Data Type: S WORD
• Unit: °C
• 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 S5140 Channel 35 Temperature - Blower Air (Address: 134)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=134, 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: "S5140 Channel 35 Temperature - Blower Air"
  address: 134
  value_type: S_WORD
  unit_of_measurement: "°C"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[A32 Pro Esp32 S3]

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

💡 Engineer's Insight

Analysis: Measures the Temperature of the Blower Air, likely in degrees Celsius or Fahrenheit. Indicates the Temperature of air supplied by the blower.

Troubleshooting: Zero or invalid reading could mean a faulty sensor, an open circuit, or an issue with airflow impacting Temperature.