User's Manual
Table Of Contents
- 1 General description
- 2 Functional overview
- 2.1 Product description
- 2.2 Functional modes
- 2.3 Reporting interval
- 2.3.1 Energy considerations
- 2.3.2 Standard reporting interval
- 2.3.3 Illumination-controlled reporting interval
- 2.3.4 Temperature-controlled reporting interval
- 2.3.5 Humidity-controlled reporting interval
- 2.3.6 Acceleration-controlled reporting interval
- 2.3.7 Magnet contact sensor-controlled reporting interval
- 2.3.8 Arbitration between reporting intervals
- 3 Sensor functionality
- 4 Product interface
- 5 Radio communication
- 6 Security
- 7 Commissioning
- 8 NFC interface
- 9 NFC registers
- 9.1 NFC memory areas
- 9.2 Device identification NDEF
- 9.3 User information NDEF
- 9.4 NFC HEADER
- 9.5 CONFIGURATION
- 9.5.1 Using the NFC configuration functionality
- 9.5.2 CONFIGURATION area structure
- 9.5.3 NFC_PIN_CODE
- 9.5.4 PRODUCT_ID
- 9.5.5 USER_KEY
- 9.5.6 SECURITY_KEY_MODE
- 9.5.7 SECURITY_MODE
- 9.5.8 EEP
- 9.5.9 SIGNAL
- 9.5.10 LED_MODE
- 9.5.11 FUNCTIONAL_MODE
- 9.5.12 STANDARD_TX_INTERVAL
- 9.5.13 THRESHOLD_CFG1
- 9.5.14 THRESHOLD_CFG2
- 9.5.15 LIGHT_SENSOR_CFG
- 9.5.16 ACC_SENSOR_CFG
- 9.5.17 SOLAR_THRESHOLD
- 9.5.18 SOLAR_TX_INTERVAL
- 9.5.19 LIGHT_THRESHOLD
- 9.5.20 LIGHT_TX_INTERVAL
- 9.5.21 ACCELERATION_THRESHOLD
- 9.5.22 ACCELERATION_TX_INTERVAL
- 9.5.23 TEMPERATURE_THRESHOLD
- 9.5.24 TEMPERATURE_TX_INTERVAL
- 9.5.25 HUMIDITY_THRESHOLD
- 9.5.26 HUMIDITY_TX_INTERVAL
- 9.5.27 MAGNET_CONTACT_TX_INTERVAL
- 9.5.28 ILLUMINATION_TEST_RESULT
- 9.6 USER DATA
- 10 Mechanical interface
- 11 Installation recommendations
- 12 Regulatory notes
- 13 Product history
USER MANUAL
STM 550 / EMSI – ENOCEAN MULTISENSOR FOR IOT APPLICATIONS
© 2020 EnOcean | www.enocean.com F-710-017, V1.0 STM 550 / EMSI User Manual | v1.4 | November 2020 | Page 42/97
8 NFC interface
STM 550 implements am NFC configuration interface that can be used to access (read and
write) the STM 550 configuration memory and thereby configure the device as described in
the following chapters.
NFC communication distance is for security reasons set to require direct contact between
the NFC reader and the STM 550 device.
Note that STM 550 temporarily stops operation to ensure configuration data in-
tegrity while the NFC reader is connected to the NFC interface of STM 550.
STM 550 will automatically resume operation approximately 5 seconds after the
NFC reader has been disconnected.
Care has to be taken not to configure unsupported values as product behavior is
undefined in that case.
8.1 NFC interface parameters
The NFC interface of STM 550 uses NFC Forum Type 2 Tag functionality as specified in the
ISO/IEC 14443 Part 2 and 3 standards. It is implemented using an NXP NT3H2111 Mifare
Ultralight tag.
8.2 NFC access protection
Protected data access is only possible after unlocking the configuration memory with the
correct 32 bit PIN code. By default, the protected area is locked and the default pin code for
unlocking access is 0x0000E500.
The default pin code shall be changed to a user-defined value as part of the installation
process. This can be done by unlocking the NFC interface with the old PIN code and then
writing the new PIN code to page 0x4B.