Airzone status feedback on KNX: temperatures and mode

The second tab of the Airzone gateway table in Link’nX maps KNX group addresses to the information of an Airzone air-conditioning zone: temperatures and setpoints, mode, fan, power, humidity, heat or cold demands, identifiers. A KNX display or visualization obtains them with a read request.

Intended for installers and administrators. The available feedback depends on the information provided by your equipment.

Before you start

• In the Airzone list, check the declaration, its system and its zone.
• For temperatures, the equipment is confirmed in Celsius.

Map a status feedback

1. On the device row, open the two arrows Gateway mode configuration.
2. First save any changes to the Actions tab.
3. Open the second tab, marked with a speech-bubble icon, and choose the necessary rows in the tables below.
4. Fill in their Address, check the DPT, then check Active. The gateway table guide explains the filters, the automatic fill and the mobile variant.
5. Click the floppy disk at the bottom right and wait for Données sauvegardées avec succès ! (Data saved successfully!).
6. Configure the KNX object used for viewing so that it sends a read request to the active address, with the planned DPT. The feedback answers this read; it is not sent spontaneously after each change on the equipment.

Temperatures and setpoints

Temperature rows	DPT
Current room temperature, Current setpoint value	9.001
Current cooling setpoint, Maximum cooling temperature, Minimum cooling temperature	9.001
Current heating setpoint, Maximum heating temperature, Minimum heating temperature	9.001
Maximum allowed temperature, Minimum allowed temperature	9.001
Temperature step value	9.002

These mappings are documented for equipment in Celsius. Separate heating and cooling limits and setpoints may depend on the model and on the use of a double setpoint.

Other feedback

Row	DPT	Reading the information
Current mode	20.105	Values from the Airzone KNX modes table
Fan speed	5.010	Current speed: 0 Auto, other values depending on the equipment
Available fan speeds	5.010	Maximum available speed, from 0 to 7; this feedback is not the list of all the speeds
Type of speed	5.010	0 zone speed, 1 airflow
Power state	1.001	0 off, 1 on
Double setpoint active	1.002	0 absent, 1 present
Sleep mode status	7.006	Timer: 0 deactivated, 30, 60 or 90 minutes depending on the setting
Current humidity	9.007	Humidity provided by the equipment
Temperature units	1.002	0 Celsius, 1 Fahrenheit; this read does not change the unit
Air demand status, Cold demand status, Heat demand status	1.011	0 deactivated, 1 activated
Master zone ID, System ID, Zone ID	7.001	Identifier provided by the equipment
Device name	16.001	Name provided by the equipment, within the 14-byte text limit

Interpret the values read

• Missing data is not a zero temperature: leave it missing rather than interpreting it as 0.
• A read just after a command may still show the previous value. Do not repeat the command for that reason alone.

Check the result

Send a read request to the feedback address, for example with the ETS group monitor, and compare the value received with the actual state of the equipment. Saving the table stores the mappings; this read is what validates communication with the installation.

Troubleshooting

• Missing or inconsistent state: check the declaration’s system and zone, the address, the Active checkbox and the DPT.
• Equipment in Fahrenheit, unknown unit or information not provided: contact support.
• Refresh frequency, longer full name or specific state not listed here: ask support for the appropriate configuration.

If these checks do not succeed or have already been done, contact support@can-nx.com with the row concerned, the expected result and the steps tried.