Advantech I/O Module 5000 Series Uživatelský manuál stáhnout pdf (Strana 10)

Programmable Automation Controllers

13-10

APAX System Architecture

Application Ready High Performance

PACs

Advantech’s APAX-5570 and 6570 series offers several high performance controllers with

Atom and Celeron M grade CPUs. These controllers beneﬁt from the high throughput,

openness, ﬂexibility and connectivity brought by PC-based architectures. Contributed

by excellent heat dissipation technology with no hard disks, they deliver great system

reliability. Various peripheral interfaces such as LAN, USB, DVI, audio, RS-232, RS-

422/485, etc, are provided. These high performance PAC controllers are suitable for

many complex control applications. Besides, its powerful integration ability makes it an

ideal platform to integrate video, audio, HMI/SCADA software, database, data processing

into one single solution.

Introduction

To simplify the system conﬁguration, Advantech’s new APAX-6000 and APAX-5000 series provide easy and ﬂexible way to setup different functions and conﬁgurations. There are

multiple APAX series system combinations that can be selected to develop reliable control systems as detailed below.

Robust, Compact PACs

APAX-5520/5620 series controllers offer a compact size without fans. These controllers

have no rotating parts, helping further increase system reliability. APAX-5520/5620

features a VGA interface, enabling local displays, and its RS-485 and LAN ports offer

communication ability with Modbus protocol. CF slot and battery backup RAM can be

used for data storage. These features make APAX-5520/5620 as compact and robust as

a PLC, but with enhanced displays, connectivity, and storage.

Scalable Systems with Remote I/O

For different ﬁeldbus or real-time Ethernet networks, such as Modbus/TCP, Ethernet/

IP, PROFINET, etc, APAX series offers different kinds of couplers for communication.

Controllers, HMI, and computers in the same network can access APAX I/O modules

through the coupler. Not having to change I/O modules for different ﬁeldbus or real-time

Ethernet networks helps ensuring current I/O modules’ investment for future demands.

These couplers feature daisy-chain design, making installation easier.

Dedicated System with Dual

Controllers

APAX-6000 and APAX-5000 feature unique system architectures with two individual

controllers executing different tasks, integrated into one platform. One controller focuses on

I/O control processing while the other controller possesses high computing performance

to be responsible for tasks like database, HMI/SCADA software, recipes, communication,

storage, vision processing, and more.

For example, APAX-5570 can be one controller delivering powerful computing ability and

sufﬁcient resources to execute all other tasks except I/O processing. Another controller

could be APAX-5520, concentrating on I/O control. For many control applications, I/O

APAX I/O

APAX-5343

Power CPU

I/O I/O I/O

Power CPU

APAX-5570/5571

APAX-6572APAX-5343

APAX-5002 APAX-5001

[Backplane]

APAX-5002

APAX-5001

[Backplane]

APAX I/O

APAX-5520

APAX-5620

APAX-5343E APAX-5001APAX-5002

APAX I/O

APAX-5343E APAX-5002

Power

CPU I/O

I/O

[Backplane]

APAX-5001

[Backplane]

I/O

APAX-5343

Power CPU

CPU I/O

APAX-5570/5571

APAX-5520/APAX-5620

APAX-5002 APAX-5001

[Backplane]

I/O

APAX-5343E

Power

Coupler

I/O

APAX-5070/5071/5072

APAX-5002 APAX-5001

[Backplane]

Reliable Backup System

APAX-5000 series delivers system backup functionality to signiﬁcantly decrease the risk

that the system will fail when the controller crashes. To leverage this, two controllers

with the same control program are installed in one system. After both controllers’

backup functions are enabled, APAX-5000 will automatically delegate one controller as

the master controller.

The master controller will run the control program to execute the control process, while

another controller (the backup controller) is put on standby. The master controller

periodically sends live messages to the backup controller. If the backup controller does

not receive a message from the master controller, it will automatically become the master

controller and restart the control process.

If the master controller is switched, it means there was an error happening on the previous

master controller. Therefore, engineers can repair or change the previous master controller

and re-enable it as the backup controller. Then if the new master controller fails, the new

backup controller will automatically take over the control once again. This mechanism

ensures the control system will continuously run the control process.

APAX-5520 x 2

APAX-5620 x 2

APAX I/O

APAX-5001

[Backplane]

APAX-5343E APAX-5002

APAX-5001

[Backplane]

APAX-5343E APAX-5002

Power

CPU

I/O

CPU

Power

I/OCPU

control is critical, and this dual controller architecture offers excellent reliability and

efﬁciency. Regardless of what happens on the APAX-5570 (even if the operating system

crashes), I/O control process is still secure.

Any application running on APAX-5570, such as HMI/SCADA software, can access

data from APAX-5520 through Modbus protocol. HMI/SCADA software that supports

Modbus clients can link to Modbus servers on APAX-5520 to get data. Advantech offers

related libraries for programmers. This can signiﬁcantly save a lot of development time

for communication.

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