The modbus protocol comes in two flavors: RTU and ASCII. RTU is a binary implementation and is often most desirable. As such, this discussion will pertain solely to the RTU standard. public bool SendFc3(byte address, ushort start, ushort registers,
USB转232的驱动。Driver Installation Follow the steps below to install Window 7.0 driver of USB TO RS232 1. Power on your computer and make sure that the USB port is enabled and working properly. 2. During installation , please don’t link USB TO RS232 wit