摘要
根据工业控制系统中对PLC的高可靠性要求,提出了双CPU的PLC冗余控制措施,并分析了基于A-B Control-Logix PLC的双CPU冗余控制的具体实现方法,包括软件冗余实现方式和硬件冗余实现方式。
According to the high reliability required in industry control system based on PLC, CPU redundancy control measure was proposed, and the design method of CPU redundancy control based on A-B ControlLogix PLC was analyzed, including the way of software and hardware.
出处
《机床与液压》
北大核心
2008年第B07期350-351,共2页
Machine Tool & Hydraulics
关键词
冗余
容错
PLC
CPU
Redundancy
Fault-tolerant
PLC
CPU
