新闻资讯
网站首页 > 新闻资讯 >

浙大中控dcs卡件XP313通信网络,节点总线常见故障原因?

2021-05-11 17:16:26 来源:http://www.promaidmusic.com/ 53

通信网络类故障
Communication network fault
通信网络类故障一般易发生在接点总线、就地总线处,或因地址标识错误所造成。
Communication network faults are usually caused by contact bus, local bus or wrong address identification.
节点总线故障
Node bus fault
节点总线的传送介质一般为同轴电缆,有的采用令牌信号传送方式,有的采用带冲突检测的多路送取争用总线信号传送方式。不论采用哪种方式,当总线的干线任一处中断时,都会导致该总线上所有站及其子设备通信故障。
The transmission medium of node bus is generally coaxial cable, some use token signal transmission mode, some use multi-channel transmission contention bus signal transmission mode with conflict detection. No matter which way is adopted, when any part of the main line of the bus is interrupted, it will lead to the communication failure of all stations and their sub devices on the bus.
目前,一般防止此类故障的方法是采用双路冗余配置的方式,避免因一路总线发生故障而影响全局,但这并不能从根本上避免故障的发生,并且一旦一根总线发生故障,处理时容易造成另一个总线故障,其后果是非常严重的。有效的方法应是从防止总线接触不良或开路人手。
At present, the general way to prevent this kind of fault is to use dual redundant configuration to avoid the global impact due to the failure of one bus, but this can not fundamentally avoid the occurrence of the fault, and once a bus fails, it is easy to cause another bus failure, and the consequences are very serious. The effective way is to prevent the bus from bad contact or open circuit.
                   浙大中控dcs卡件XP313
某个比较成功的系统节点总线布置方式。其同轴电缆的连接不是在通信模件的前面,而是在模件的后面,这样当系统运行中处理通信模件故障时,可避免误碰同轴电缆,造成网线断路。同时,其同轴电缆除专门进行检查,任何时候都不会去触动,可防止因多次插拔同轴电缆的插头造成松动,增加其故障的可能。另外,应制定同轴电缆检查与更换管理制度,在其接触电阻加大至影响通信之前,进行更换或处理。
A more successful system node bus layout. The connection of the coaxial cable is not in front of the communication module, but behind the module. In this way, when dealing with the failure of the communication module in the operation of the system, it can avoid touching the coaxial cable by mistake, resulting in the open circuit of the network cable. At the same time, the coaxial cable will not be touched at any time except for special inspection, which can prevent the plug of the coaxial cable from loosening due to repeated plugging, and increase the possibility of its failure. In addition, the coaxial cable inspection and replacement management system should be formulated to replace or deal with before its contact resistance increases to affect communication.
本文由浙大中控dcs卡件XP313整理提供,感谢您的阅读,希望以上内容对您有所帮助,如您想了解更多精彩内容请点击我们的官网:http://www.promaidmusic.com
This article is provided by the central control DCS card of Zhejiang University. Thank you for reading. I hope the above contents can help you. If you want to know more wonderful contents, please click our official website: http://www.promaidmusic.com .
产品推荐
新闻推荐