HP8568B__GetSweepTime (ul_pbar_instruments)

 *  Synopsis:
 *    #include <ul_pbar_instruments:hp8568b.h>
 *
 *    int HP8568B__GetSweepTime( const CHP8568Bptr hp8568BPtr, double *value )
 *
 *  Function intent:
 *    HP8568B__GetSweepTime() returns the instrument sweep time in Sec.
 *  Function parameters:
 *    CHP8568Bptr	hp8568BPtr	Valid HP8568B module pointer
 *    double		*value		Pointer to data destination in Sec.
 *  Function return value:
 *    CBS_OK		command successfully written
 *    CLIB_INVALID_DATA	module response was not a type float number
 *    CLIB_NO_SUCH	invalid reference number
 *    CBS_INVARG	invalid GPIB address
 *			no such module type for the given front end
 *			or invalid module pointer
 *    CBS_NODAT		VME interface device could not be retrieved
 *   				for this GPIB address
 *    CBS_NO_SUCH	VME interface device doesn't exist
 *    DIO_xxx		error retrieving VME interface device
 *    otherwise		GAS error