“pick-to light” systems

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按灯拣货(Pick-to-Light)系统
按灯拣货传感器与控制系统配合使用,可引导装配操作员或仓储人员逐步完成预先设定顺序的一组操作.操作员通常需要从一排货位架上拣取零件,以确保正确装配设备或正确地履行订单.
按灯拣货传感器通常配有一个指示灯,向操作员示意正确的零件货位.传感器与一个编制了正确拣货顺序的PLC相连.PLC打开正确货位上的传感器,然后等待该传感器发出已拣取正确零件的信号.收到此信号后,PLC将按顺序打开下一个指示灯.
某些按灯拣货传感器还提供声光指示,可在操作员从错误的货位拣取零件时发出提示.指示灯可能会变换颜色和/或闪烁.

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