/* this is the structure of all variables for the status file status.xrf */
struct status_type
	{
	unsigned short sampling;		/* is system currently in sampling mode? YES/NO */
	unsigned short analyzing;		/* is system currently in analyzing mode ? YES/NO */
	unsigned short curr_sample_num;	/* number 0-23 of sample position currently in use */
	unsigned short curr_elapsed;	/* elapsed minutes on the current sample */
	unsigned short xrf_subsys_OK;	/* is XRF sub-system OK? YES/NO */
	unsigned short sample_OK;		/* OK to actually sample (no wind or other problems) */
	unsigned short NO_rain;		   /* OK to sample - NO rain detected */
	unsigned short running;			/* set when sample is actually running */
	unsigned short rain_delay;		/* amount of delay time remaining after rain event ends */
	unsigned short wind_delay;		/* amount of delay time remaining until new average is ready */
								/* main CPU */
	unsigned short	maincpu_status;	/* status "word":
										- power control: LOW = ON

										bit 0 - wind power 
										bit 1 - met power
										bit 2 - rflink power
										bit 3 - XRF PC power
										bit 4 - XRF main power (relay)
										bit 5 - sample handler power
										bit 6 - inlet power
										bit 7 - unused
									*/
	
								/* inlet */
	unsigned short inlet_open;		/* is inlet open? YES/NO */
								/* sample handler */
	unsigned short x_intake;			/* sample number at intake position */
	unsigned short last_position;		/* from sample handler status message (GOCW value) */
	unsigned short last_sample_num;	/* from sample handler status message (GOCW value) */
	unsigned short curr_encoder;		/* from sample handler status message (degrees * 10) */
	unsigned short intake_open;	/* is intake position open or closed? YES/NO (from sh_status) */
	unsigned short xrf_open;		/* is xrf (analysis) position open or closed? YES/NO (from sh_status) */
	unsigned short sh_status;		/* status "word":
										- power control: LOW = ON
										- limit switches: LOW at limit
										- dir control: LOW = CW

										bit 0 - purge valve power 
										bit 1 - analog 0 power
										bit 2 - analog 1 power
										bit 3 - encoder power
										bit 4 - motor 2 CW limit (intake)
										bit 5 - motor 2 CCW limit
										bit 6 - motor 3 CW limit (xrf/analyze)
										bit 7 - motor 3 CCW limit

										bit 8 - motor 1 direction (platter)
										bit 9 - motor 1 enable
										bit 10 - motor 2 direction (intake)
										bit 11 - motor 2 enable
										bit 12 - motor 3 direction (xrf/analyze)
										bit 13 - motor 3 enable
										bit 14 - air pump power
										bit 15 - main motor power
								*/
	float last_AD[7];		/* most recent cal'd values of AD channels 0-6 */
								/* MET/WND */
	float last_wnd_dir;	/* most recent wind direction value */
	float last_wnd_speed;	/* most recent wind speed value */
	float last_RH;			/* most recent RH% value */
	float last_TMP;		/* most recent Temp value */
	float last_PRC;		/* most recent PRC level value */
	unsigned short rain_detect;	/* rain detector value (rain = YES) */
								/* XRF subsystem */
	unsigned short analysis_retry;	/* number of retries to do analysis before continuing with new sample */
	unsigned short xrf_status;		/* status returned by XRF PC "RetrieveStatus" command */
	unsigned short xrf_warning;	/* warning returned by XRF PC "RetrieveStatus" command */
	};

/* this is the structure of all variables for the config file config.xrf */
struct config_type
	{
	short sample_time[24];	/* array of total sampling times for each sample */
	short rain_delay;			/* number of minutes to delay restart after end of rain */
	short wind_check;			/* 0 disables wind checking, non-zero enables it */
	short max_wind;			/* max allowed wind speed * 10 (m/s) */
	short min_wind;			/* minimum wind speed * 10 ?? - usually ignored */
	short wind_delay;			/* number of minutes to average wind until ready */
	short analysis_retry;	/* number of retries to do analysis before continuing with new sample */
	};