According to CBS2000 system, it points out that using OPC standard design supervisor and control system will improve the software development speed greatly and reduce the software maintenance work.
It points out the PLC design key is to satisfy the basic control function and the capacity, and maintenance convenience, the system extension and so on.
指出了PLC设计的关键主要是能满足基本控制功能和容量，并考虑维护的方便性、系统可扩展性等。
3
Belt deviation run-out causes are analyzed and the controlling methods are put forward in aspects of design, manufacturing, installing, working and maintenance.