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Industrial Panel Computers

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Features

Browser-based HMI/SCADA Software

Advantech

WebAccess

 View, control, conﬁgure system remotely over Internet using web browser

 Free unlimited client licenses

 Distributed SCADA architecture

 Central database server

 Redundant SCADA and COM ports

 Supports dynamic DNS services

 Acts as an OPC server and OPC client

 Support LonWorks LNS and BACnet IP

 Video and audio integration

 Integrate ﬂash animations with action scripts, TCL scripts and fscommand

 Calendar schedule control

 Email alarms, reports and messages

 Supports Apple iPhone and Android smart phones

Introduction

Advantech WebAccess is browser-based software package for human-machine interfaces (HMI), and supervisory control and data acquisition (SCADA). All the features found in

conventional HMI and SCADA software packages are available in an ordinary browser including Animated Graphics Displays, Real-time Data Control, Trends, Alarms and Logs.

WebAccess is based on standard internet architecture, its basic component includes:

1. SCADA Node: It communicates in real-time with automation equipments and control the equipment via Serial, Ethernet or proprietary communications. The SCADA Node can

provide supervisory control and data acquisition functions, includes supplying communication driver (Modbus, PLC, and I/O systems), real-time and historical trending. It also

can monitor and log alarm and event. The SCADA Node has its own run-time database and all graphics.

2. Project Node: It is the developing platform for WebAccess, and all system conﬁguration and project development is implemented on the Project Node. It is a web server for all

Client and SCADA node to connect with.

3. Client: Through an ActiveX control inside Internet Explorer Web browser, it has the ability to monitor and control the SCADA Node simultaneously. The Client connects to

the Project Node only to get the address of the SCADA Node. The Client then communicates directly with the SCADA Node using proprietary communications over a TCP/IP

network connection. Data is displayed in real-time with dynamically updated graphics, and user can monitor real-time and historical trending with alarm record. Besides, user

can acknowledge alarms and change setpoints, status and other data.

4. Thin Client: The Thin Client interface is intended for use with PDA, Pocket PCs and Handheld computers. Other ASP enabled web browsers can view the thin client graphics.

Thin client interface supplies static snapshots of dynamic graphics as GIFs and JPEGs. No plug-in or ActiveX control is required. Real-time data, alarms and changes to data are

through a text type interface. Thin client has been tested with the iPAQ series of pocket PCs. The thin client does not communicate with the SCADA node directly. The thin client

communicates directly to the Project Node (Web Server).

Features

Web Browser Client to View and Control

Using a standard Web browser, users can view and control automation equipment used

in industrial, manufacturing, process and building automation systems. Data is displayed

to users in real-time with dynamically updated graphics using full-motion animation.

Powerful Remote Diagnose and Maintenance Functionality

The unique feature, which distinguishes WebAccess from the competition, is that all

engineering project, conﬁguration, graphics building (DRAW) and software management

(download, start and restart remote nodes) is performed using a standard Web browser.

If there is any troubleshooting needed, no matter wherever the operator is located, he

can use the standard internet to operate the system. This can signiﬁcantly increase the

efﬁciency of maintenance operation and reduce the maintenance cost.

Vector-based Graphics

WebAccess features Vector-based graphics. Vector-based graphics provide smaller ﬁle

sizes and faster download. Because Vector-based graphics use mathematic algorithm to

save image, its ﬁle size is much smaller than Bitmap graphics. Therefore it is much faster

to transfer Vector-based graphics on internet. Besides, WebAccess features user interface

self-adaptive adjustment technology, no matter how user adjust the screen ratio of monitor,

WebAccess can ensure all the user interface will be displayed on the screen. When the

resolution of screen increases, the display performance will also become better respectively.

Import BMP, JPEG and GIF

Except Vector-based graphics, WebAccess also supports the most popular BMP, JPEG

and GIF Bitmap format ﬁle, and user can zoom in or zoom out these image as well as

animation conﬁgurations. WebAccess also provides build-in animation image libraries.

Import AutoCAD DXF

WebAccess is similar to AutoCAD, which allows engineers familiar with AutoCAD to

get comfortable with WebAccess in short amount of time. Users can import DXF format

ﬁles into WebAccess, and can edit imported data and choose animation conﬁgurations.

Scripts Using TCL, Java Script or VB Script

Scripts in WebAccess use the open source programming languages TCL, Java Script

or VB Script and allow users to develop customized actions, calculations and reports.

Scheduler

The Scheduler provides control and changes setpoint status based on time and date.

Lights, Fans, and HVAC equipment are turned on and off based on the time, day of week

and date. The Scheduler is also used in process control and manufacturing applications.

All these schedule conﬁgurations can be modiﬁed remotely through internet.

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