Siemens ST PCS 7 User Manual

Other communication

Siemens ST PCS 7 · November 2007

9

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The actuator-sensor interface (AS-Interface) is a multi-vendor 

networking system for simple - usually binary - actuators and 

sensors in the lowest field area. AS-Interface enables a wiring 

loom with parallel wiring to be replaced by a simple two-wire ca-

ble shared by all sensors or actuators.
The AS-Interface works by the master-slave principle. Sensors/ 

actuators connected through the AS-Interface cable are con-

trolled by the master as slaves.

AS-Interface is integrated in SIMATIC pcs 7 as a subordinate

bus. Consequently, this bus does not offer the full functionality of 

SIMATIC PCS 7; this applies in particular to diagnostics func-

tions. Further information, see Catalog IK PI.

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The basic components of a system installation are:
• CP 343-2 AS-Interface master module for ET 200M or/and

DP/AS-Interface link for connection of an AS-Interface line to 

PROFIBUS DP

• AS-Interface shaped cable (use of round cable also possible 

if preferred)

• Modules for connecting standard sensors/actuators
• Power supply unit for powering the slaves
• Actuators and sensors with an integrated slave ASIC
• Address programming device for setting the slave address

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Order No.

Communications processor for 

connection of SIMATIC S7-300 

and ET 200M to AS-Interface, 

without front connector

20-pin, with screw contacts

Including software and examples
• German

• English

• French

• Italian

PROFIBUS DP/ AS-Interface 

gateway, degree of protection 

IP 20

Paper version

incl. type and GSD files
• German

• English

• French

• Spanish

• Italian

© Siemens AG 2007