Table of Contents
Connecting AirPoint - M (metering) to WebHMI
This version of the AirPoint module is intended for reading data from heat meters via the M-bus protocol and transmitting telemetry data via the MQTT protocol to data collection systems.
Features
- Compatible meters: DIEHL Scylar INT, Siemens FUE950, Danfoss Infocal, and their equivalents
- Connection using a standard connector (included with the module) instead of the communication board of the heat meter
- Energy saving polling cycle
Connection method
The module connects to a meter with edge connector right to the extension module slot.
M-bus protocol
All meters are read with “REQ-UD2” request using broadcast address. The M-bus tags are mapped onto statndard AirPoint's MQTT topics:
| Value | Description | Units | Mapped to |
|---|---|---|---|
| FWT | Forward temp. | °C | “temp_int” |
| RET | Return temp. | °C | “temp_ext” |
| E | Energy | Gcal | “counter_in1” |
| VOL | Volume | m3 | “counter_in2” |
| Q | Flow | m3/hour | “hum_int” |
Connection with Sontex SuperCalc531
The AirPoint - M can be connected to the heatmeter w/o extra communication module.
Connection with PolluTherm X
The AirPoint - M can be connected to the heatmeter w/o extra communication module.
