User manual

2-1
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
ASi Basics
If you wish to acquire a general idea of ASi, this is the right chapter for you.
If you are already familiar with ASi, you can skip this chapter.
The Actuator Sensor Interface is a wiring system to which a master and up to
31 slaves can be connected.
The ASi master (the DP/ASi link) periodically transfers input and output data
from and to all the ASi slaves within a period not exceeding 5 ms.
The slaves may be configured as modules or intelligent actuators and sensors.
Intelligent sensors are BEROs, for instance.
After you have studied this chapter, you will know how the ASi is structured
and how it operates.
In Section You Will Find on Page
2.1 Structure of ASi 2-2
2.2 Elements of ASi 2-3
2.3 Example Configuration of a Module 2-5
2.4 Connecting Elements 2-6
2.5 Interruption or Short-Circuit of the ASi Cable 2-7
Introduction
Definition
Overview
In this chapter
2