说明：  白车身机器人焊装线PLC控制系统架构研究（caj文件）。针对其工艺特点，给出了 PLC 控制系统的架构，完成硬件设计与软件设计方案。在控制系统的软件设计中，论文对模块化，结构化的编程思路进行了研究探索，在此基础上对焊装线控制程序进行了系统的规划。
(Research on PLC control system architecture of BIW robot welding line (CAJ file). According to its process characteristics, the architecture of PLC control system is given, and the hardware design and software design are completed. In the software design of the control system, the paper studies and explores the modular and structured programming ideas, and on this basis, makes a systematic planning of the welding line control program.)