[Ver 1.1.1]
 first released at 1 Jun,2007 by Bill 
 
 [Ver 1.1.2]
 	Add new function to support FR-2054
	i8172_DIO_WriteDOGroup
	i8172_DIO_WriteDOBit
	i8172_DIO_ReadDIGroup
	i8172_DIO_ReadDIBit
	
[Ver 1.1.3]
	Add new function to support FR-2017 
 	i8172_ReadAIHex
 	i8172_AIHexToFloat
 	i8172_ReadAI_Ch
 	i8172_ReadAI_All
 
	Add new function to support FR-2024
 	i8172_WriteAOHex
 	i8172_WriteAOFloat
 	
 	Define the following functions' name 
 	#define Read_DI_Group_status			i8172_ReadInputGroupStatus
	#define i8172_Write_DO_Group   			i8172_WriteDOGroup
	#define i8172_Write_DO_Bit				i8172_WriteDOBit
	#define i8172_Read_DI_Group				i8172_ReadDIGroup
	#define i8172_Read_DI_Bit				i8172_ReadDIBit