2 Visual Components Manuals

void _CYCLIC test( void )
{
if (ready == 0)
{
VC_HANDLE = VA_Setup (1,"Compact");
if (VC_HANDLE != 0)
ready = 1;
}
else
{
Access_Status = VA_Saccess (1,VC_HANDLE);
if (Access_Status == 0)
{ switch (step)
{
case 1:
{
Alarmlen = 80;
Seperator = 45; /*Hyphen*/
Alarmtype /*First alarm*/ = 1;
TimeDateForm /*DD.MM.YY = 1; HH.MM.SS*/
GetActAlarmList_Status = VA_GetActAlarmList (1, unsigned VC_HANDLE, int)AlarmString,(unsigned (
int) &Alarmlen
,Alarmtype,Seperator,TimeDateForm);
if (GetActAlarmList_Status == 0)
step = 2;
break;
}
case 2:
{
Alarmlen = 80;
Seperator = /*Hyphen*/
45;
Alarmtype = /*First 2; alarm*/
TimeDateForm /*DD.MM.YY = 1; HH.MM.SS*/
GetActAlarmList_Status = VA_GetActAlarmList (1, unsigned VC_HANDLE, int)AlarmString,(unsigned (
int) &Alarmlen
if (GetActAlarmList_Status == 240)
step = 1;
break;
}
}/*step switch*/
VA_Srelease (1,VC_HANDLE);
}/*VA_Saccess == 0*/
}/*Visapi initialized, ready != 0*/
}/* end cyclic*/
3.3.8.7 Reading Alarm Lists − VA_GetAlarmList
,Alarmtype,Seperator,TimeDateForm);
Two functions can be used to read the alarm history VA_GetAlarmList and VA_GetExAlarmList. Both
functions return a result string which must then be evaluated.
It is important to call VA_Setup once before alarm system functions are called and to execute VA_Saccess
before each use of Visapi alarm functions.
To format the alarm line, the function VA_GetExAlarmList can be used.
3.3.8.7.1 Parameter
I/O Parameter Type Meaning
IN enable BOOL This function is only executed if enable is TRUE.
IN VCHandle UDINT The handle returned by VA_Setup.
IN pcAlarmLine DINT Text array to be used as the alarm line
IN plLen DINT
IN iFunction UINT
Address of a DINT variable which contains the length of the text field.
After the function is called, this variable is set to the actual length.
1 ..... Read first alarm
2 ..... Read next alarm
4 ..... Read previous alarm
8 ..... Read last alarm
Introduction to Visual Components 2.3
142 3.3.8.7 Reading Alarm Lists − VA_GetAlarmList