Technical data

AS-Interface (AS-i)
1-8
SIMATIC NET AS-Interface – Introduction and Basic Information
C79000-G8976-C089/03
1.2.3 Further AS-i System Components
AS-i Cable
The AS-i cable, designed as an unshielded 2-wire cable, transfers signals and
provides the power supply for the sensors and actuators connected using AS-i
modules.
Networking is not restricted to one type of cable. If necessary, appropriate modules
or “T pieces” can be used to change to a simple 2-wire cable.
Note
If you change to a simple 2-wire cable, keep in mind the technical restrictions such
as cable cross section, voltage drop, and cable length as described in the AS-i
specification (see /1/ and /2/).
AS-i Power Supply Unit
The AS-i power supply unit supplies power for the AS-i nodes connected to the
AS-i cable. For actuators with particularly high power requirements, the connection
of an additional load power supply may be necessary (for example using special
application modules).
Addressing Unit
The addressing unit allows simple programming of AS-i slave addresses.
SCOPE for AS-Interface
SCOPE AS-interface (previously SCOPE S1) is a monitoring program for
WINDOWS which can record and evaluate the data exchange in AS-i networks
during the commissioning phase and during operation. SCOPE AS-interface can
be operated on a PC under WINDOWS in conjunction with the AS-i master
communications processor CP 2413.