The course "Programmable Controller Application Technology" uses typical control tasks in wind and photovoltaic power generation systems as a basis, teaching through six major projects. Project 1, "Getting to Know PLCs," explains the definition, development, characteristics, components, working principles, and programming languages of PLCs, introduces the hardware, data types, and addressing methods of the S7-200 SMART PLC, and demonstrates the use of the STEP 7-Micro/WIN SMART programming software. Project 2, "Wind Power Control System," focuses on unit start-stop control and blade rotation counting, covering basic logic instructions and counters. Project 3, "Photovoltaic Power Control System," deals with tracking forward/reverse rotation, automatic cleaning, and heat dissipation control, analyzing circuit block instructions, timers, edges, and comparison instructions. Project 4, "Energy Management of Storage Systems," focuses on timed battery charging/discharging and dynamic adjustment control, introducing instructions for clocks, subroutines, and transfers. Project 5, "Coordinated Scheduling of Wind, Solar, and Storage Systems," covers system startup, mode switching, and storage control, explaining sequential control, interrupts, floating-point operations, segment coding, and analog conversion instructions. Project 6, "Industrial Communication and Data Interaction in New Energy Power Generation," combines wind farm and solar power station collaborative control, teaching S7 communication, Modbus communication, as well as free port communication and OPC UA data interaction technologies. Each project includes course ideology design, task implementation, knowledge expansion, practice exercises, and discussion/testing content.