PLC控制系统抗干扰可靠性研究  

Research on Anti-Jamming and Reliability of PLC Control System

作　　者：伊连云[1] 孙如军[1] 张秀英[1] 

机构地区：[1]德州学院机电工程系,山东德州253015

出　　处：《兵工自动化》2007年第7期37-37,共1页Ordnance Industry Automation

摘　　要：PLC控制系统的可靠性从硬件和软件方面共同衡量。前者可从电源系统、输入与输出端子的保护、接地及选择合适的接线方式等方面着手提高系统可靠性;后者则从提高输入信号的可靠性、增加锁定逻辑,提高系统对设备故障的判断能力及跟踪现场设备的动作时间,保护设备安全等方面提高软件的强健性。The reliability of PLC control system is judged between hardware and software. The former improves the system reliability through power source, input and output ends protection, grounding, and connection mode. The latter improves the software reliability by improving input signal reliability, improving the locked logic, improving the fault judging ability and tracking reaction time, and protecting equipment safety.

关 键 词：PLC控制系统 系统可靠性 抗干扰 输入信号 电源系统 输出端子 接线方式 动作时间 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]