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All stations consist of a bus

coupler and the required electro-

nic and base modules

The base modules simply latch

into the DIN rail. Tools are not

needed.

The electronic modules are simply

plugged onto the base modules

Tools are not needed.

The mechanical coding system

ensures secure assignment of

base and electronic modules.

The end plate

With integrated terminating

bracket that is the mechanical

termination of each BL20 station

Ensures vibration-proof mounting

of the station on the mounting rail

The base

modules

For connection

of field wiring

Are based on

modular terminal tech-

nology

Come as slice or block

versions with tension springs

or screw connections

Are available with a choice of

2/3/4 and 4 x 2/3 wire

connections

Are suited to permanent wiring

Require no tools for mounting

Absender/Sende

Name:

Firma/Company

Abt./Position:

Adresse/Addres

Tel./Phone:

E-Mail:

FAX-AN

The electronic modules

Incorporate versatile I/O functions

Communicate with the gateway

via the internal module bus

Are independent of the higher-

level fieldbus

May be inserted independently of

the field wiring

1, 2 and 4-channel slice

modules or 16 and 32-channel

block modules available

Provide type-specific colour

coding

End plate

Power feedingmodule

Slice type basemodule

Block type basemodule

BL20

MODULAR

I/O BUS

TERMINAL

SYSTEM

Compact and safe system construction

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8/10/2019 BL20 Flyer

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The bus

refreshingmodule

For system supply of

the BL20 modules and the

gateway via the internal

module bus

For field supply of the modules

with 24 VDC

For assembly of potential groups

Provides diagnostic functions:

monitoring of the field voltage,

the module bus supply and

module overload

The mechanical codingsystem

For grouping of electronic

and base modules

Prevents interchange errors

when exchanging electronic

modules

The power feeding module

For field supply of the

BL20 modules with 24 VDC or

120/230 VAC

For assembly of potential groups

Provides diagnostic functions:

fieldbus voltage monitoring

The gateway

For connection of

BL20 field devices

to the fieldbus

Supports PROFIBUS-DP,

DeviceNet, CANopen or

INTERBUS fieldbus protocols

Coordinates the complete

process data communication

Fieldbus connection via direct

wiring or via fieldbus-specific

connectors, e.g. SUB-D

THE BL20 I /O SYSTEM: OPEN, MODULAR,

FLEXIBLE

IN

FU

Open, modular and extremely

flexible:

Our universal bus terminal system

BL20 is designed to plan and

implement tailor-made IP20 I/O

solutions.

All types of s ignals are freely

combinable

Independently of the type of field-

bus, the user is able to combine

all types of I/O modules and to con-

figure the required I/0 channels bit-by-bit: whether analogue or digital

signals, 1, 2, 4, 16 or 32 channels

or block and slice versions. The

customer only has to buy the exact

number of channels needed a

really cost-effective solution right

from the start!

Power supply modules may also be

freely combined. Moreover, it is

possible to configure application-

specific potential groups anywhere

within the BL20 system.

Modular terminal blocks

The base modules offer an additio-

nal advantage: all common sensors

and actuators in 2, 3 or 4-wire

technology may be directly con-

nected using tension springs or

screw connections. Additional con-

nections are not needed.

Fieldbus independence through

gateways

The BL20 I/O system is designed

for integration into all major field-

buses. Gateways are the link

between the fieldbus system and

the I/O modules. They control the

entire data communication. Based

on this concept, the system is open

to new bus technologies and is

thus a safe investment. All you need

to do is to exchange the gateway

you can continue to use the I/O

modules.

Slice-typeelectronic module

Block-typeelectronic module

Gateway

Power-feedingmodule

The relay module

For direct supply in combination

with certain base modules

(e.g BL20-S4T-SBCS)

Bridging of the relays

common potential

and reduction of

wiring through

cross connection

links

Slice-type basemodule

Block-type basemodule

Openolo

The

to n

Gat

field

PRO

Dev

I/O

field

Transfers

diagnosis data to

the higher level control-system

For setting of fieldbus addresses

With integrated interface

for I/Oassistant software