数控系统RS232通讯，数控机床RS232通讯接口及参数介绍。-RS232 serial port communication

西门子OPC UA方式读取数控系统内部数据，包括主轴转速、进给速度、主轴负载率、进给轴坐标、报警信息等(Siemens OPC UA reads the internal data of CNC system, including spindle speed, feed speed, spindle load rate, feed axis coordinates, alarm information, etc.)