Siemens DP/AS-Interface Link 20E

Glossary
152
DP/AS-Interface Link 20E
Release 11/2002
C79000-G8976-C138–04
E.1 Terms Relating to AS-Interface
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-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 control
devices. (previous name: 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 library
Library whose functions allow the user program to communicate with the AS-i
driver.
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 an extended AS-i
master.