描述
输出继电器是PLC中专门用来将运算结果信号经输出接口电路及输出端子送达并控制外部负载的虚拟继电器。它在PLC内部直接与输出接口电路相连，它有无数个动合触点与动断触点，这些动合与动断触点可在PLC编程时随意使用。外部信号无法直接驱动输出继电器，它只能用程序驱动。FX系列PLC的输出继电器采用八进制编号。FX2N系列PLC带扩展时，输出继电器最多可达184点，其编号为Y0～Y267。
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ABB KENT TAYLOR TRANSMITTER 545TBO
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