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1、电梯PLC梯形图 LD X20 上限位 AND X21 下限位 OUT M10 平层 LD X03 一层感应开关 SET M500 一层显示 RST M501 RST M502 RST M503 LD X04 二层开关 SET M501 二层显示 RST M500 RST M502 RST M503 LD X05 三层开关 SET M502 三层显示 RST M500 RST M501 RST M503 LD 06 四层开关 SET M503 四层显示 RST M500 RST M501 RST M502 LD M500 ANI T0 OUT Y10 一层显示输出 LD M501 ANI T0
2、 OUT Y11 二层显示输出 LD M502 ANI TO OUT Y12 三层显示输出 LD M503 ANI T0 OUT Y13 四层显示输出 LD X00 急停 ANI T1 OUT T0 K 090 LD TO OUT T1 K 0110 LD X00 ANI X01 检修 MC N0 SP M000 LD X22 轿内指令：X22-X25 OR M12 LDI M500 ORI M10 ANB OUT M12 LD X23 OR M13 LDI M501 ORI M10 ANB OUT M13 LD X24 OR M14 LDI M502 ORI M10 ANB OUT M14
3、LD X25 OR M15 LDI M503 ORI M10 ANB OUT M15 LD X11 外呼按钮：X11-X16 OR M21 LDI M500 ORI M10 ANB OUT M21 LDI M501 ORI M10 ORI M32 LD X12 OR M22 ANB OUT M22 LDI M501 ORI M10 ORI M31 LD X13 OR M23 ANB OUT M23 LDI M502 ORI M10 ORI M32 LD X14 OR M24 ANB OUT M24 LDI M502 ORI M10 ORI M31 LD X15 OR M25 ANB OUT M
4、25 LD X16 OR M26 LDI M503 ORI M10 ANB OUT M26 MCR N0 LD M13 OR M14 OR M15 AND M500 LD M14 OR M15 AND M501 ORB LD M15 AND M502 ORB OR M31 AND X00 AND X02 SET Y0 上行输出 RST Y1 LD M14 OR M13 OR M12 AND M503 LD M13 OR M12 AND M502 ORB LD M12 AND M501 ORB OR M32 AND X00 AND X02 SET Y1 下行输出 RST Y0 LD M21 OR M22 OR M23 OR M24 OR M25 AND M503 LD M21 OR M22 OR M23 AND M502 ORB LD M21 AND M501 ORB ANI M31 OUT M32 外呼下行 LD M22 OR M23 OR M24 OR M25 OR M26 AND M500 LD M24 OR M25 OR M26 AND M501 ORB LD M26 AND M502 ORB ANI M32 OUT M31 外呼上行
