通过VC.net编写了TCP/IP版ModBus的网络编程，可以通过网络进行数据传输，最多可以挂6个从机，功能很强大，用VC.net2010打开-Prepared by VC.net TCP/IP version ModBus network programming, data transmission through the network, you can hang up to 6 months from the machine, very powerful, with VC.net2010

modBus Class complete standard class to implements modbusTcpip in Vb.net with application test ModBus