几种不同类型现场总统在基于PC的控制系统中的性能分析

Several Different Fieldbuses Based on PC－based Device and System Control

着重就几种不同类型的现场总线在基于PC的控制系统所显示的性能进行研究与分析，并测试了基于PC的控制系统的全局响应时间，从而可推测其中现场总线的延迟时间。对于最终用户，这便是他们关心的响应时间。本文同时也探讨了有关运动控制的题目及一个使用SoftPLC的样例应用。

Deal with experiences about three different fieldbuses based on a comprehensive research study in the field of PC-based device and system control (softPLC). The overall reaction time of PC-based control systems has been tested so that the delay caused by fieldbus is included.For the end user this is the reaction time that cotunts. Some topics concerning motion control and a case study of an application controlled by soff PLC are discussed too.