Siemens SIMATIC NET CP 343-2 Manual page 122

D Glossary
APF
AS-i Power Fail Flag or LED display that indicates that the power supply on the
AS-i cable is too low or has failed (for example failure of the AS-i power supply
unit).
AS
Automation system
AS-i (AS-Interface)
Actuator-sensor interface. A network system for the lowest field area of the
automation range. It is suitable for networking sensors and actuators with the
controllers (previously known as: SINEC S1).
AS-i A/B slave
AS-i A/B slaves use the extended addressing mode. Pairs of A/B slaves can be
assigned to one address on the AS-Interface; by organizing addresses in this
way, up to 62 AS-i A/B slaves can be attached to the AS-Interface.
AS-i analog slave
AS-i analog slaves are special AS-i standard slaves that exchange analog values
with the AS-i master.
AS-i master
The AS-i master is used to monitor and control the simplest binary actuators and
sensors via AS-i modules or AS-i slaves.
A distinction is made between a standard AS-i master and the extended AS-i
master.
122
CP 343−2 / CP 343−2 P AS−Interface Master
C79000−G8976−C149−04
Release 08/2008