×î½üÎÒ×öÁË‚€ƒž(y¨u)ÏȾŽ´aé_êP(gu¨¡n)½ÓÁË‚€¹âëŠñîºÏÆ÷£¨PC817£©£¬È¥¿ØÖÆPLCµÄÝ”Èë¶ËÄܹ¤×÷¿ÉÊÇÎå‚€¹âñîͬ•r¹¤×÷¾Í²»ÐУ¬ÎÒÓÃÈfÓñíœyÁËһφ΂€¹âñ×÷ëŠÁ÷ß_(d¨¢)µ½36ºÁ°²ß@˜ÓÎå‚€¾ÍÊÇ210ºÁ°²£¬ƒž(y¨u)ÏȾŽ´aé_êP(gu¨¡n)µÄÄ£‰K£¨74LS148£©òŒ(q¨±)„Ó²»ÁËß@Îå‚€¹âñՈ´ó¼Ò½é½BÒ»·N¹âñ×÷ëŠÁ÷ÔÚ20ºÁ°²×óÓҵĹâñÖxÖx´ó¼Ò