NFC (P81)

NFC (near-field communication) is used to commission the thermostat via the Siemens smartphone app Quick Config.

The distance between smartphone and the thermostat must be max. 2 cm while scanning the NFC area on the individual package or antenna area of the thermostat. Data exchange between controller and Siemens smartphone application is 2...3 s.

P81 enables/disables NFC communication locally. When disabled (default is enabled), the application cannot read or write the thermostat and message "NFC communication is disabled on the thermostat." is displayed.

Using Siemens smartphone application, users can:

  • Set, read or download thermostat parameter settings
  • Enable or disable password protection by configuring P82
  • Import and export the setting parameter list in .json format


  • When NFC communication is enabled, the parameters can be configured even if the thermostat has no power.
  • The phone must have active NFC functionality.
  • NFC does not synch from device until 10 minutes after thermostat configuration changes. After changes, if power fails within 10 minutes, the changes may not be saved once power is on.

For commissioning via Siemens smartphone application Quick Config, see Commissioning.