Introduction to EnOcean

EnOcean Basics

EnOcean is a wireless protocol for ultra-low power energy harvesting sensors, switches, and controls. EnOcean devices offer batteryless, maintenance-free operation and come with standardized communication profiles to ensure interoperability across manufacturers.

EnOcean devices use short, infrequent radio signals and can transmit over distances of up to 30 m (100 ft) indoors. The signals are received and processed by line-powered devices such as relay switch actuators, repeaters, or gateways.

For more information about the EnOcean wireless standard, see https://www.enocean.com and https://www.enocean-alliance.org

About O3 Edge EnOcean

O3-EDGE-02-E8 and O3-EDGE-02-E9 devices are embedded with EnOcean gateway, connecting wireless EnOcean protocol to the O3 Edge, which can then be used to configure data through its connected interfaces (BACnet, MQTT, etc). The communication protocol is defined by EnOcean Serial Protocol 3.0.

The embedded gateway acts as both a receiver and a transmitter, reading from EnOcean input devices and writing to EnOcean output devices. Structured View (SV) objects represent the EnOcean devices on the network, with device data mapped to BACnet values according to a supplied XML mapping file. Normally these mappings are based on an EnOcean Equipment Profile (EEP), but custom mappings are also supported.

The gateway currently supports the following EEP types:

• F6: Repeated Switch Communication (RPS) Telegram, e.g., F6-02-01

• D5: 1 Byte Communication (1BS) Telegram, e.g., D5-00-01

• A5: 4 Byte Communication (4BS) Telegram, e.g., A5-20-01

For more information, see http://tools.enocean-alliance.org/EEPViewer.

Communication is established between the O3 Edge EnOcean device and an EnOcean device through a pairing process in which the device is put into learn mode and a "learn in" or "learn out" packet is sent from the gateway to the device.

O3 Edge EnOcean Specifications

The following table lists the specifications of the O3 Edge EnOcean-compatible device in O3 firmware version 2.1:

Gateway Capacity	Up to 32 devices per O3 Edge with device numbers in the range 01-32. Device SV instances in the 33-99 range are not supported. Recommend less than 13 points per EnOcean device.
EnOcean Data Units	Frame packet (physical layer), subtelegram (data link layer), telegram (network layer).
EnOcean Equipment Profiles	27 FIL object EEPs are included in the firmware.
BACnet Objects	Analog Value, Binary Value, Character String Value
Auto Mapping/Discovery	Supports auto learn feature for inputs Supports one click learn out, three click learn out, custom 4BS, and 4BS Variant 3 learn out for outputs Allows manual addressing
Supported EnOcean Devices	868 MHz (Europe) or 902 MHz (North America) EnOcean input (read) devices 868 MHz (Europe) or 902 MHz (North America) EnOcean output (write) devices
EnOcean Communication Protocol	Supports ESP3 (EnOcean Serial Protocol 3.0). Does not support older ESP versions (e.g., ESP2).