上升沿_PLC基本知识 -- 4.5 One-Shots / 上升下降沿 （顺便学英文）One-shots / 上升沿or下降沿
One-shots / 上升沿or下降沿A one-shot is an interesting and invaluable programming tool. At first glance it might be difficult to figure out why such an instruction is needed. After we understand what this i...
