Why Your Schneider PLC's Float32 Reads 1.4e-41 Instead of 25.5 C

You've connected your Python script to a Schneider M221, requested a holding know the temperature is 25.5°C, and you get back: 1.401298464324817e-45 Not 25.5. Not even close. Some weird denormal float so small it might as Welcome to the Modbus float32 byte-swap trap. It's the single most pymodbus i