The application of programmable controller GEM80/163 in sampling and preparation control system is described. The functions and characteristics of the system are depicted in detail.

The automatic irrigation system is designed chiefly according to various cultivating methods, the water need regulation of flowers as well as the characteristics of programmable logical controller.

This paper introduces the characteristics and PLC control system of rim-crimping machine for automobile silencer tube, which includes machinery, hydraulic and programmable controller technique.