论文部分内容阅读
PROFIBUS网络安装是PROFIBUS总线应用的重要组成部分,不规范的网络安装会引入外界EMC干扰,导致通讯质量下降,直接影响设备的正常工作。尽管设备具有一定的抗干扰能力,但从总线上引入的部分干扰完全是不可修复的。所以,在网络安装中,必须本着规范、不依赖设备抗干扰能力的原则来进行设备安装和布线。一方面,要着力解决总线的屏蔽措施,提高网络自身的免疫能力;另一方面,要注意避开干扰源,防止干扰串入网络。本期文章就如何规范网络安装做一些讲解,供网络安装人员参考。
PROFIBUS network installation is an important part of the PROFIBUS bus application. The non-standard network installation will introduce external EMC interference, resulting in the decline of communication quality and directly affecting the normal operation of the equipment. Although the device has some anti-jamming capability, some of the interference introduced from the bus is completely uncorrectable. Therefore, in the network installation, must be based on norms, not dependent on the principle of equipment anti-interference ability to install and route equipment. On the one hand, efforts should be made to solve the bus shielding measures to improve the network’s own immunity; on the other hand, care should be taken to avoid interference sources and prevent interference from entering the network. This article on how to regulate network installation to do some explain for network installation staff reference.