In chapter 5, system software is introduced, module structure and data structure are explicated, the authorized of PLC program and epigynous machine monitor program are more expounded.

• 第五章介绍了系统的软件构成，具体说明了系统的模块结构和数据结构，并进一步阐述了PLC控制程序的编制和上位机监测程序的编制。