Technical data

AS-Interface (AS-i)
1-11
SIMATIC NET AS-Interface – Introduction and Basic Information
C79000-G8976-C089/03
Special modules allow each of these bits to be used for a binary actuator or
a binary sensor. This means that an AS-i cable with standard AS-i slaves
can have a maximum of 248 binary attachments (124 inputs and 124
outputs). All typical actuators or sensors can be connected to the
AS-interface in this way. The modules are used as distributed inputs/outputs.
If modules with the extended addressing mode are used, a maximum of 3
inputs and 3 outputs is available per module; in other words a maximum of
248 inputs and 186 outputs can be operated with modules using the
extended addressing mode.
Range of Functions of the Master Modules
The functions of the AS-i master modules are stipulated in the AS-i master
specification (see /1/ and /2/). An overview of these functions can be found in the
PICS in the appendix of the master module manual.
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