韦博自控系统（WebXL）代表了DDC楼宇控制系统技术的新时代。该系统使用目前先进的电子技术，即Web（Internet）和XML（Extended HTML）通讯协议，为用户提供了一个真正的具有最新技术的高性能的系统。它具有强大的可操作功能、使用简单、成本低、易于安装和维护等优点。
它不像BACnet和LONwroks系统那样，需要使用复杂的协议来完成系统的配置和操作，WebXL系统采用了被证实的软件封装概念。所有功能都被集成在WebXL控制器中。该控制器不再需要任何前端软件，只需使用Web界面就能完成系统配置。
控制器之间是通过目前大多数的楼宇中常用的标准以态网来连接的。它们之间通过XML协议来进行通讯。
由于设计中重点考虑了系统使用的简易性，在WebXL控制器中内置了大量的功能模块，使得它功能非常强大。
大多数的楼宇DDC控制系统可通过配置两个基本单元来完成，它们是WebXL控制器和WebXL I/O模块。由于I/O模块可放置在远离控制器一定距离并接近可控设备的临近位置，使得I/O布线的成本大大降低。
无需使用编程语言，更加凸现了WebXL系统容易使用的优点。系统配置时只需使用鼠标拖曳动作即可完成。
WebXL是在澳大利亚设计和开发的，它代表了最新的基于Internet互联网技术之上的设备自控系统，价格低廉、操作简便、功能强大和系统可靠。
通用配置：
◆ 完全基于Web界面来配置和管理，无需安装任何软件；
◆ 要求浏览器支持Java脚本和Java语言；
◆ 在设备之间采用XML协议进行通讯；
◆ 支持上传背景图像和动画；
◆ 每个控制器可接四个I/O模块，每个I/O模块带有八个模拟输入和八个模拟输出，以及八个数字输入和八个数字输出；
◆ 面向对象的系统包括无编程语言和使用Web登录安全验证。
系统特点和优势：
◆ 系统封装固化有效实现了控制器之间的协同工作；
◆ 使用标准的浏览器，无需在客户端安装任何软件；
◆ 无需购买软件费用和维护软件费用；
◆ 使用标准的UTP通讯协议，降低了安装成本；
◆ XML协议具有可低成本扩展的特点；
◆ 高点计算使得网络通讯阻塞较低；
◆ 可扩展的内置控制运算使得楼宇系统在网络瘫痪时能照常运行；
◆ 功能强大，使用简单，易学；
◆ 图表管理无需编程语言；
◆ 便捷的登录系统。
译文： In another Sphere with WebXL DDC
Sphere System’s WebXL represents the next generation in DDC control technology. It uses the current technologies of modern electronics, the internet and XML protocols to deliver true state-of-the-art performance with power of operation, simplicity of use, low cost, ease of installation and low maintenance.
Unlike BACnet and LONworks systems, that require complex protocols in order to configure and operate a system, the WebXL system follows the well-proven software concept of encapsulation. All functionality is contained in the WebXL controller. The controller is configured using a web interface and does not require front-end software of any sort.
Controllers are connected to the standard Ethernet network already present in most buildings. Communication between controllers uses XML protocol messages.
Simplicity of system design is an important consideration and, as the WebXL controller contains a large variety of inbuilt functions, it is very versatile.
The majority of a complete building DDC system can be configured using just tow units, the WebXL controller and WebXL I/O modules. As the I/O modules can be located a considerable distance from the controller, wiring costs can be minimized by location I/O modules adjacent to the plant they control.
Ease of use of the WebXL system is further enhanced by not requiring the use of a programming language. The system is configured using functional blocks and drag/drop techniques.
WebXL is Australian-designed and manufactured. It represents the latest in internet-based plant automation systems offering low cost, operational simplicity, power and system reliability.
General configuration:
◆ Fully web-based with no software to install;
◆ Requires browsers that accept JavaScript and Java languages;
◆ Uses XML protocols for inter-device communications;
◆ Includes uploadable graphic backgrounds and animations;
◆ Can address up to four I/O Modules with each I/O module containing eight analogue inputs and eight outputs and binary inputs and outputs;
◆ The object-orientated system comprises no programming language and uses digest authentication for security with web log on.
Features and benefits include:
◆ “All in the box” leads to true interoperability between controllers;
◆ Uses a standard browser with no installed software on client’s computer;
◆ No need to purchase or maintain software;
◆ Uses standard UTP cabling, resulting in a low installation cost;
◆ XML protocols allow a low cost growth path to incorporate advanced features;
◆ High point count leads to low network traffic;
◆ Extensive inbuilt control algorithms allow the building to function even if the network fails;
◆ Powerful yet simple to learn to use;
◆ Graphic and table driven with no programming language;
◆ Extensive on-board logging.
编译：周文新
