Structured PLC Programming: Modular Programming Methods Explained

Structured PLC Programming: Modular Programming Methods Explained

Want to make PLC programs easier to maintain? Is high code complexity leading to debugging difficulties? Need to improve code reusability? Let’s learn about structured and modular programming methods for PLC programs! 1. Program Structure Design 1. Basic Structure program_structure = { "主要组成": { "初始化模块": "系统启动初始化", "主控模块": "核心控制逻辑", "功能模块": "独立功能单元", "通信模块": "数据交互处理", "报警模块": "故障诊断处理" }, … Read more

Modular Programming: Serial Programming Design for LCD12864

Modular Programming: Serial Programming Design for LCD12864

1. System Description 1. Hardware Description: Using serial transmission, the controller is ST7920. The data lines DB0-DB7 do not need to be connected; the serial chip select signal CS is connected to P3.5; the serial data port SID is connected to P3.6; the serial clock signal SCLK is connected to P3.4; the serial/parallel selection interface … Read more