Detector Controls Status and Severity Flags

These are the values of the severity and status flags as reported in the
EPICS header file alarm.h . They severity defines the color of the ambient
data points reported by BrowserApp as follows:
   
Severity
________

#define NO_ALARM                0x0                  (no alarm - black)
#define MINOR_ALARM             0x1                  (warning - yellow)
#define MAJOR_ALARM             0x2                  (alarm - red)
#define INVALID_ALARM           0x3                  (invalid data - white)


Status
______

EPICS usage: for ALARM severities > NO_ALARM, the status will elucidate the
condition that caused the alarm.

/* NO_ALARM = 0 as above */

#define READ_ALARM              1
#define WRITE_ALARM             2
/* ANALOG ALARMS        */
#define HIHI_ALARM              3
#define HIGH_ALARM              4
#define LOLO_ALARM              5
#define LOW_ALARM               6
/* BINARY ALARMS        */
#define STATE_ALARM             7
#define COS_ALARM               8
/* other alarms         */
#define COMM_ALARM              9
#define TIMEOUT_ALARM           10
#define HW_LIMIT_ALARM          11
#define CALC_ALARM              12
#define SCAN_ALARM              13
#define LINK_ALARM              14
#define SOFT_ALARM              15
#define BAD_SUB_ALARM           16
#define UDF_ALARM               17
#define DISABLE_ALARM           18
#define SIMM_ALARM              19
#define READ_ACCESS_ALARM       20
#define WRITE_ACCESS_ALARM      21
#define CDEV_ALARM              22


Note: The severity and status flags are combined and stored in the database
as "100*severity + status".