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能否通过OPENMV测距后给定临界距离给PLC发送信号？
如果只是传输“是”/“否”这样的信号，OpenMV直接驱动继电器，继电器连接到PLC。 如果是传输数字的话，OpenMV连接RS232/RS485模块，通过RS232/RS485连接PLC。