■ Rotary coding switch for adjustment of the
node address
■ Protection class IP20
■ 2 x end brackets BL20-WEW35/2-SW
■ 1 x end plate BL20-ABPL
■ 1 x open style connector
■ Integrated power supply
■ LEDs for display of supply voltage, group
and bus errors
■ Gateway between the BL20 system and
CANopen
■ 20 kbps up to 1000 kbps
■ The connection to CANopen is established
via an open-style connector

Functional principle
BL20 gateways are the head component of
a BL20 station. They are designed to interface the modular fieldbus nodes to the higher level fieldbus (PROFIBUS-DP, DeviceNet,
CANopen, Ethernet).
All BL20 electronic modules communicate
over the internal module bus, the data of
which is transferred to the fieldbus via the
gateway, so that all I/O modules can be configured independently of the bus system.