摘要
叙述以PLC为主控设备的电厂除灰处理程控系统的结构,给出上位机与下位PLC之间的冗余通信和双机热备。
The structure of the airslide ash handling programming control system of the power plant based on PLC as its main control unit is presented, and the communication design between the high-level computer and the low- level PLC are also given.
出处
《电气传动自动化》
2007年第4期54-56,共3页
Electric Drive Automation
关键词
PLC
上位机
Genius总线
以太网
双机热备
冗余通信
PLC
high-level computer
Genius bus
Ethernet
double on-line standby
redundancy communication
