API串口读写模块 这是用VB编的通过API来对串口进行读写操作

VB编写的串口通讯源码，内部包含电导巡检模块通讯报文，可以读写数据，保存数据，备份数据-VB source code to prepare the serial communications, internal communications includes conductivity packet inspection module, you can read and write data, save data, backup data

VB用RS232/RS485协议通讯，通过COM口与现场仪表(包括Modbus)通讯 实例使用API串口读写模块实现-VB with RS232/RS485 communication protocol, through the COM and field instruments (including Modbus) communications Examples using API serial literacy module implements

这是个利用vb编写的读写plc信号的通讯模块，欢迎各位同行使用交流-This IS a