Advantech I/O Module 5000 Series Uživatelský manuál stáhnout pdf (Strana 9)

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13-9

Serial Communication

Cards

Device Servers &

Gateways

Industrial Ethernet

Industrial Monitors

Automation Panel PCs

Operator Panels

Building Automation

Systems

Energy Automation

Hazardous Location

Motion Control

Embedded Auto.

Computers

PACs

M2M I/O

Distributed Nano

Controllers

RS-485 I/O

Automation Software

Ethernet I/O

DAQ Boards

APAX Series Overview

Guaranteed Real-time Performance

APAX-507x

Coupler

APAX I/O

APAX-6000

Controller

Changeable Controllers and Couplers

Line Topology

Star Topology

Flexible Expansion Topology

APAX I/O local bus adopts real-time I/O access

methodology to ensure deterministic control with

real-time performance. Contributed by the dedicated

Digital Signal Processor (DSP) which handles I/O

data process without controller’s CPU resource, the

I/O scan rate can be maintained within 1 ms, offering

time deterministic I/O. The I/O processing is running

on the back-end, and controller’s CPU and DSP can

share data through built-in dual port RAM. All these

deliver real-time performance regardless of the number

of I/O points. Programmers can concentrate on their

application program development, and APAX system

can perform real-time I/O access automatically.

APAX-5520/5620

Controller

APAX-5570/5571

Controller

APAX I/O modules can be accessed by different

controllers or couplers to satisfy different applications.

No matter what kind of CPU or couplers are used,

the APAX I/O modules are the same. Using different

couplers, I/O modules can link to various real-time

Ethernet and ﬁeldbus systems. It greatly saves I/O

investment and offers scalability for future needs.

All APAX I/O modules are inserted on backplane

modules. Through expansion port on backplanes

and standard Ethernet cable, a remote expansion with

local-bus speed between backplanes is built, and the

distance can be up to 100 m. Standard Ethernet switch

can be used between two backplanes. So line, tree or

star topology can be built for I/O expansion - all with

fast local-bus speed. The implementation of Ethernet

switches not only enhances the flexibility of I/O

expansion, it also increases the expansion distance.

When ﬁber optic ports are available on the Ethernet

switch, the distance can be much longer.

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