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HwLib是基于PLC和上位HMI的一个通用工业自动化库，它融控制与监视操作于一体，同时涵盖逻辑控制、过程控制及网络通信。它的构建目标是成为一个跨不同厂家、不同品牌的PLC和HMI之间的通用平台，提供一个统一功能、统一接口的程序库，以帮助工程技术人员提高效率、程序稳定性及健壮性。
HwLib is a general industry automation library which is basis on PLC and HMI. Including logic control, process control and network communication, It makes control and monitoring to be integrated. It was built to be a platform of program library to supply a compatible functions, a compatible interfaces for engineer to help improving efficiency, stability and robustness.
它具有以下功能及优点：
1、标准化的控制对象，例如电机、阀、闭环调节等，统一的功能及接口，使编程及组态效率极大的提高；
2、占用内存小，对CPU几乎没有要求，包含一个Core库及Application库，Application库可以根据需要调用；
3、基于面向组件理念的设计模式；
4、很多功能块传送至OS仅一个变量，在正版化趋势下的今天可大大降低项目成本；
5、支持操作事件记录；
6、双语界面(中文和英文)；
7、统一的上位HMI风格；
they have got following functions and advantages,
1, Standardized control objects, such as Motor, Valve, Closed-loop Regulation and so on.
2, It only needs a little Core library.
3, Basis on Component-oriented Program mode.
4, Lots of componets just transfer one tag to HMI. It can reduce project cost substantially.
5, Support operation and event record.
6, All faceplates have included Chinese and English.
7, Unified style of HMI.
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原文地址：http://www.cnblogs.com/InhaSoftware/p/4430262.html
