ABSTRACT
The purpose of this design is to design a small musical fountain based on the
control system use a small PLC as the control of the core, inverter control water
column height and the audio collection is the foundation of the system .We choose S7-200
Micro PLC as the core of the system and use MICROMASTER 420 to control pumps.
This paper mainly introduces the control system software design of musical
fountain，focusing on PLC programming and the transducer parameter settings. This
paper is divided into six parts, the first part introduces the working principle of PLC
briefly; the second part mainly introduces the working principle of transducer; the
third part introduces the overall control system; the fourth part stresses the transducer
parameter settings, including transducer parameter settings method, the relevant
parameter settings and parameters description; the fifth part introduce the control
process of the control system and the programming of PLC; Finally, introducing the
debugging of the control system.
KEY WORDS: musical fountain, software design, control system, PLC, Transducer
