现场总线的应用在我国已逐步深入,各种不同的现场总线纷纷进入中国市场,呈现出一派兴旺景象.这是一个广阔的世界,对应于此形势,我刊特新辟《现场总线世界》栏目,拟陆续介绍各种现场总线,希望读者能多提宝贵意见,本期介绍 CAN。据世界著名的市场调查公司 VDC(Venture Developrnent Corp.)于99年3月12日发布的“工业分布式远程 I/O 的全球市场和用户需求”研究报告称,在分布式控制系统应用 CAN 总线(DeviceNet)的市场份额占世界第二位,到2003年仍将占第三位。CAN 总线现已为国际标准 ISO111898.预计到本世纪末,安装的 CAN 节点将超过2亿,在中欧,几乎每一个人直接或间接在每 Fieldbus applications in China have been gradually in-depth, a variety of different field bus have entered the Chinese market, showing a surge of prosperity scene.This is a vast world, corresponding to this situation, I opened a new “Fieldbus World” section , Intends to introduce a variety of fieldbus, I hope readers can put more valuable advice, this issue introduces CAN. According to a report released by Venture Developrnent Corp., a world-renowned market research firm, on March 12, 1999, “The Global Market and User Needs of Industrial Distributed Remote I / O” report said that in distributed control system applications DeviceNet has the second largest market share in the world and will still be the third largest by 2003. The CAN bus is now an international standard ISO 111898. It is estimated that by the end of this century, more than 200 million CAN nodes will be installed. In Central Europe, almost everyone directly or indirectly