几种名牌PLC产品的性能比较与发展趋势

The Performance Comparisons and Development Trends of Several Famous PLC Products

本文在简单介绍现代可编程控制器性能、特点的基础上，着重分析了美国GE公司、德国西门子公司和日本OMRON公司产品在硬件结构上的特点，并说明了各公司产品的软件运行环境及发展趋势。

On the basis of briefly introducing the performance and features of modern programmable controllers this paper analyses the features of the products of GE Co., SIEMENS Co. and OMRON Co. In the hardware structure. The software running environments and development trends of each company products are also discribed.