Read-only current reading from sensor 8: for a digital input this is simply 1 (active) or 0 (inactive); for an analog 4-20 mA input it is the sensor value after the falconInput8Gain/falconInput8Offset correction has been applied -- the value an admin actually watches (e.g. via polling or the falconInput8HighLimit/LowLimit alarms) to track that sensor's real-world reading such as temperature or humidity.