Technical data

AS-Interface (AS-i)
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SIMATIC NET AS-Interface – Introduction and Basic Information
C79000-G8976-C089/03
S Simple and cost-effective wiring: simple installation with the “penetration”
technique, high flexibility with tree-like wiring.
S Fast reaction times: the AS-i master requires a maximum of 5 ms for cyclic data
exchange with up to 31 nodes.
S Nodes (AS-i slaves) on the AS-i cable can be either sensors/actuators with an
integrated AS-i connector or AS-i modules to which up to four conventional
binary sensors/actuators can be connected.
S With standard AS-i modules, up to 124 actuators/sensors can be operated on
the AS-i cable.
S If you use AS-i modules with the extended addressing mode, up to 186
actuators and 248 sensors can be operated with one extended master.
S Extended AS-i masters from SIMATIC NET support extremely simple access to
analog sensors/actuators or modules operating in compliance with the
AS-Interface slave profile 7.3/7.4.
AS-i - Open Standard for Network Systems at the Process Level
The electrical and mechanical specifications for AS-i were compiled by eleven
companies active in the field of binary sensors and actuators. The specifications
are available for companies with interests in this field. This makes AS-i an open,
heterogeneous standard. With AS-interface, Siemens provides a system complying
with the AS-i standard.
The “Association for Promoting Interfaces with Bus Capability for Binary Actuators
and Sensors” (AS-i Association) is responsible for promoting the application and
dissemination of the AS-i system; in particular the specification, standardization,
certification and general user information.