Environment sensor

The built-in environment sensor measures enclosure temperature in °C and relative humidity in %RH.

Enable the sensor
Open Sensors > Environment and turn on Enable sensor. Enable the built-in Heater only when the installation requires it; heating can temporarily affect local temperature and humidity readings.
Configure MQTT publishing
Turn on MQTT Publish Enable and set MQTT publishing interval (s). For example, enter 10 to publish every ten seconds.
Set optional alerts
Expand Advanced. Enable high or low temperature and humidity alerts as needed, then set each limit.
Publish meaningful changes
To publish between scheduled intervals when a reading changes, turn on MQTT Publish When Reading Changes and enter temperature and humidity change steps.
Save and verify
Select Save settings, then confirm the enclosure temperature and humidity on Overview.

Analog inputs

The gateway has four analog channels.

Channels	Input type	Typical use
Analog 1 and Analog 2	Voltage	Sensors with a 0-10 V output
Analog 3 and Analog 4	Current	Sensors with a 4-20 mA output

This example configures Analog 1 for a 0-10 bar pressure transmitter.

Open and enable the channel
Open Sensors > Analog, select Channel 1, and turn on Enable channel.
Identify the measurement
Enter a clear Name, such as Tank pressure, and a Unit, such as bar.
Configure MQTT publishing
Turn on MQTT Publish Enable and set the publishing interval.
Configure advanced processing
Expand Advanced and set any required engineering scaling, calibration, or alarm values.
Save and verify
Select Save settings, then open Overview and confirm that Analog 1 uses the new name and shows a plausible live value.

Setting	Purpose
Calibration gain	Multiplies the measured value to correct a known gain error.
Calibration offset	Adds an offset to correct a consistent measurement error.
Engineering scaling	Maps the electrical input range to engineering minimum and maximum values.
Out-of-range alarm	Flags values below Alarm below or above Alarm above.
Include raw ADC value in MQTT	Adds the converter's raw value to the MQTT payload.
Include ADC voltage in MQTT	Adds the measured converter voltage to the MQTT payload.
Include engineering value in MQTT	Adds the scaled value and configured unit to the MQTT payload.

Setting	Accepted value
Channel name	Required; fewer than 32 UTF-8 bytes
Unit	Fewer than 16 UTF-8 bytes
Publishing interval	Whole number from 1-3600 seconds
Engineering range, calibration offset, and alarm limits	-1,000,000 to 1,000,000
Calibration gain	-1000 to 1000, but not zero
Engineering scaling	Minimum must be less than maximum
Out-of-range alarm	Minimum must not exceed maximum