Almost every program for programming a PLC controller possesses various useful options such as: forced switching on and off of the system input/outputs (I/O lines), program follow up in real time as well as documenting a diagram.

• 几乎所有用于为plc控制器编程的程序都拥有各种不同的选项，例如系统输入/输出（I/O线）的强制开关，程序实时跟踪以及图表验证。