■ Fieldbus and connection technology independent

■ Protection class IP20

■ LEDs indicating system status, field supply

and diagnostic information

■ Can be used to form potential groups

■ BL20 I/O modules powered with 5 VDC

nominal voltage via the internal module

bus

■ Supplies field with 24 VDC nominal voltage

Functional principle

BL20 electronic modules are plugged into the

purely passive base modules which are used

for connection of field devices. Maintenance is

significantly facilitated due to separation of the

connection level from the module electronics.

Furthermore flexibility is enhanced because

the base modules provide a choice of tension

spring or screw connection technology.

The electronic modules are completely independent of the type of higher level field bus

through the use of gateways.