gotc.bat   : batch file for use TC 2.0
gomsc.bat  : batch file for use MSC 5.0/6.0 
modbus_s.prj : project file for TC++3.0 or BC++ 3.1

MODBUS_S.C     first version [08/06/1999]

Demo program for connect I-7188 to MODBUS as Slave Mode.

MODBUS has two serial transmition modes, ASCII mode & RTU mode.
   if use ASCII mode,
      1. set UseAsciiMode=1
      2. 38400,E,7,1 <-- must set on InstallCom()
   if use RTU mode,
      1. set UseAsciiMode=0
      2. 38400,N,8,1   <-- must set on InstallCom()

   P.S.
      1.RS-232 baudrate & data format must match the MODBUS device
      2.The demo program do not control the RTS signal,
	if need, maybe just short the CTS & RTS pins, or need
	call SetRtsActive() &  SetRtsInactive() to control RTS pin
	call GetCtsStatus() to get the status of CTS pin

   PC <---->(COM4)I-1788(COM1)<---->ModBus device
      RS-232                  RS-232 
   PC is use to show message.

The demo program support send/receive the message frame, but user must 
construct the message frame except the CRC16/LRC, and interpret
the received message.