VB监测PLC采集的温度，以及数据分析，通讯端口配置-VB to monitor PLC program

采集48路PLC 的IO口数据，非常有用，最快速度处理数据，使用类似的MODBUS协议-PLC data acquisition 48 IO port data, very useful, the fastest processing data, using a similar MODBUS protocol

串口曲线采集,采用电脑RS232串口通信采集永宏PLC的模拟量数据，并用图形实时显示曲线。-Serial curve acquisition, computer RS232 serial communication Yonghong PLC acquisition of analog data, and real-time graphical display curve.