Introduction - If you have any usage issues, please Google them yourself
A very good serial procedures, using Modbus protocol to write to many people may be helpful.
Packet : 21840303modbus.rar filelist
modbus\abcd
modbus\ComSetDlg.cpp
modbus\ComSetDlg.h
modbus\ComSetSheet.cpp
modbus\ComSetSheet.h
modbus\examview.aps
modbus\examview.clw
modbus\examview.cpp
modbus\examview.dsp
modbus\examview.dsw
modbus\examview.h
modbus\examview.ncb
modbus\examview.opt
modbus\examview.plg
modbus\examview.positions
modbus\examview.rc
modbus\examview.suo
modbus\examviewDoc.cpp
modbus\examviewDoc.h
modbus\examviewView.cpp
modbus\examviewView.h
modbus\MainFrm.cpp
modbus\MainFrm.h
modbus\mscomm.cpp
modbus\mscomm.h
modbus\ReadMe.txt
modbus\res\examview.ico
modbus\res\examview.rc2
modbus\res\examviewDoc.ico
modbus\res\Thumbs.db
modbus\res\Toolbar.bmp
modbus\res
modbus\Resource.h
modbus\StdAfx.cpp
modbus\StdAfx.h
modbus\modbus\复件 examviewView.cpp
modbus