Page 15 of catalogue Bus, identification and control systems of ifm Electronic GmbH

Notes and explanations

active AS-i module for the connection of 4 binary Sensors

D0 D1 D2 D3

In the ifm logistics centre in Essen all sensors in the conveyor are connected to the higher-level controller via AS-i.

– P0 P1 slave P2 P3

D0 – D3: data bits P0 – P3: parameter bits (not used)

sensor housing switching signal failure warning ready for operation test

D1 D2 D3 P0 slave P1 P2 P3

selection sensing range

sensor

D0 – D3: data bits P0 – P3: parameter bits

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15

Technical information and customer service

D0

Accessories

block diagram of an intelligent sensor

Block diagram of an intelligent sensor.

Connection technology

Active AS-i module for the connection of four binary sensors.

AS-i sensors, Pneumatic and actuator solutions

Safety at Work

AS-i +

I/O modules for field applications

I/O modules for Control cabinets

Power supplies and earth fault monitors

AS-i as a practical system AS-interface offers new methods for implementing a system. On the one hand there are conventional I / O modules much like other bus systems, however one difference with AS-i is that it works in much smaller blocks of I / O due to its structure being dividable by 4. This offers the chance to implement a decentralised system where the bus connection comes to the sensor and not vice versa. On the other hand due to each AS-i slave being only 4 bits, direct integration of the AS-i connection into the sensor or actuator is possible without high redundancy of I / O. This certainly is the future. Thus only the bus cable, here the AS-i flat cable, and the energy cable, e.g. 400 V three-phase current and compressed air, if any, are laid through the machine. Specially in the special machine construction and conveying this flexible installation is an excellent choice because the control cabinets can be considerably reduced and no space must be reserved any more.

Controllers / Gateways, network extension

List of articles

General information