Temperature probes
The gateway provides two dedicated probe inputs:
- Thermistor probe: NTC sensor.
- Precision probe: PT100 RTD sensor.
Configure a probe
Open and enable the probe
Open Sensors > Temperature probes, select the probe, and turn on Enable sensor.
Name the measurement
Enter a descriptive Name that identifies the connected probe.
Configure MQTT publishing
Turn on MQTT Publish Enable and set MQTT publishing interval (s).
Enter the probe values
Expand Advanced and configure the NTC- or PT100-specific values below.
Save and verify
Select Save settings, then confirm a plausible live temperature on Overview.
Set Valid minimum (°C), Valid maximum (°C), and Offset correction (°C). Enter the probe's Nominal resistance, Nominal temperature, and Beta coefficient from its datasheet. The defaults 10000, 25, and 3950 suit a common 10 kΩ NTC probe.
Probe limits
| Setting | NTC | PT100 |
|---|---|---|
| Name | Required; fewer than 32 UTF-8 bytes | Required; fewer than 32 UTF-8 bytes |
| Publishing interval | Whole number from 1-21,600 s | Whole number from 1-86,400 s |
| Offset correction | -50 to 50 °C | -50 to 50 °C |
| Valid temperature range | -200 to 500 °C; minimum below maximum | -200 to 850 °C; minimum below maximum |
| Nominal resistance | 10-10,000,000 Ω | Not applicable |
| Nominal temperature | -100 to 200 °C | Not applicable |
| Beta coefficient | 500-10,000 | Not applicable |
| Publish-on-change step | Not applicable | 0-1050 °C |
If Overview shows Reading unavailable, check the probe wiring and open Diagnostics > Hardware.
Digital inputs
The gateway has three digital inputs, DI 1-3. Each input can report a selected state, report state transitions, or count pulses.
Configure an input
Open and enable the input
Open Sensors > Inputs, select an input such as DI 1, and turn on Enable channel.
Name the input
Enter a descriptive Name, such as
Flow switch.Choose its behavior
Under What it does, choose a mode and complete the mode-specific settings.
Filter contact bounce
Turn on Contact debounce for a mechanical contact. The filter suppresses contact bounce for 50 ms.
Save the settings
Select Save settings and confirm that the input reports the expected state or count.
| Mode | Configure |
|---|---|
| Publish one state | Choose whether to publish when the input becomes Inactive or Active. |
| Publish state changes | Publish on Activation, Deactivation, or Both changes. |
| Count pulses | Choose the counted edge, enter Amount per pulse and Unit, and decide whether to keep the count after restart. The stored total survives a restart only when persistence is enabled. |
Digital-input limits
| Setting | Accepted value |
|---|---|
| Input name | Required; fewer than 32 UTF-8 bytes |
| Counter unit | Required; fewer than 16 UTF-8 bytes |
| Amount per pulse | 0.000001-1,000,000,000 |
| Contact debounce | Fixed 50 ms filter when enabled |