其程序执行结果会对排在下面的凡是用到这些线圈或数据的梯形图起作用 相反 排在下面的梯形图 其被刷新的逻辑线圈的状态或数据只能到下一个扫描周期才能对排在其上面的程序起作用输出刷新阶段当扫描用户程序结束后 PLC 就进入输出刷新阶段 在此期间 CPU 按照 I/O映象区内对应的状态和数据刷新所有的输出锁存电路 再经输出电路驱动相应的外设 这时 才是 PLC 的真正输出

BUSS BM6033B FUSE BLOCK, LOT OF 6, NIB

LENZE 3-PHASE MAINS LINE FILTER EZN3A1500H003 LOT OF 5

STATIC CONTROLS CORPORATION CONTROL BOARD PCB CB-0950-0

FANUC ROBOTICS EMERGENCY STOP CONTROL BOARD PCB A16B-12

FANUC ROBOTICS EMERGENCY STOP CONTROL BOARD PCB A16B-12

ALLEN BRADLEY GUARD PLC 1200 24VDC PLC UNIT 1754-L28BBB

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EUCHNER RIEGEL TZ-CF 076199 SAFETY DOOR BOLT,

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INA RNA908 NEEDLE ROLLER BEARING, 2.444″ OD X 1.941″ ID

WAGO 750-600 FREQUENCY ELECTRONIC END BUS,

ALLEN BRADLEY POWER SUPPLY 8520-OFC 160194

NAMCO ET12-23410 PROXIMITY SWITCH LOT OF 9, NIB

SMC D-H7A2 24 VDC PROXIMITY SENSOR, LOT OF 9,

ALLEN BRADLEY 800T-N80R ACCESSORY LED LAMP, LOT OF 9, N

ALLEN BRADLEY 800T-N80R ACCESSORY LED LAMP, LOT OF 9, N