This research works out a design of signal adaptor circuit of serial communication port between PLC and PC, including input interface circuit and output interface circuit.
设计了PLC与PC机串行通讯口之间信号适配器硬件电路,包括输入接口电路、输出接口电路。
The controllable adaptor includes casing and connecting circuit inside the casing, and features that partial connecting circuit is provided with serial control switch controlled outer control signal.
本发明包括外壳和安装在外壳内部的连接电路,其特征在于部分连接电路串联了受控开关,受控开关受连接到可控续接器的外部控制信号控制。
The controllable adaptor includes casing and connecting circuit inside the casing, and features that partial connecting circuit is provided with serial control switch controlled outer control signal.
本发明包括外壳和安装在外壳内部的连接电路,其特征在于部分连接电路串联了受控开关,受控开关受连接到可控续接器的外部控制信号控制。
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