UPDATE_MODBUS_MULTI_REGISTER

This is a structure information to update multiple Modbus register values within a single Modbus device. It includes the Modbus I/O symbolic name, the number of registers, and their corresponding register values.

BYTE#	Field Name	Data Type	Value	Remarks
0	_szSymbol	char[MAX_SYMBOL_SIZE]		Modbus I/O symbolic name
32	_iRegCount	unsigned char		Number of Modbus registers to update
33	_iRegValue	unsigned short[MAX_MODBUS_REGISTER_PER_DEVICE]		Array containing Modbus register values to be updated

Total size: 134 bytes

Defined in: DRFS.h

typedef struct _UPDATE_MODBUS_MULTI_REGISTER
{
    /* modbus i/o name */
    char                        _szSymbol[MAX_SYMBOL_SIZE];
    /* register count */
    unsigned char               _iRegCount;
    /* modbus i/o value */
    unsigned short              _iRegValue[MAX_MODBUS_REGISTER_PER_DEVICE];
    /* register start address (not used) */
    //unsigned short              _iRegIndex;
    /* Slave ID (not used) */
    //unsigned int                _iSlaveID;

} UPDATE_MODBUS_MULTI_REGISTER, *LPUPDATE_MODBUS_MULTI_REGISTER;