Rolling canvas is a new type of advertisement.In order to reach a good propaganda effect, 16 rolling canvases on 8 advertisement machines are controlled by one Programmable Logic Controller(PLC).

• 摘要滚动画布是一种新型的广告发布形式，为了达到良好的宣传效果，用单台PLC控制8台广告机上的16幅滚动画布。