2 Visual Components Manuals

Introduction to Visual Components 2.3
OUT Return Value UINT Not equal to 0 if error occurs
3.3.8.7.2 Example for Automation Basic
if ready = 0 then
VC_HANDLE = VA_Setup(1, "vga")
if VC_HANDLE 0 then
ready = 1
endif
else
Access_Status = VA_Saccess (1,VC_HANDLE)
if Access_Status = 0 then
;Alarm Alarmlen string = 80 length
Alarmtype = 1 ;Read first alarm
endif
endif
3.3.8.7.3 Example for C Programming
#include
#include
#include
GetAL_Status = VA_GetAlarmList UDINT(ADR(Alarmstring)),UDINT(ADR(Alarmlen)),Alarmtype)
(1,VC_HANDLE,
VA_Srelease (1,VC_HANDLE)
UINT _GLOBAL ready;
STRING _GLOBAL pcAlarmline[80];
DINT _GLOBAL lLen;
UINT _GLOBAL iFunction;
unsigned long VC_HANDLE;
_CYCLIC void Cyclic(void)
{
if (!ready)
{
VC_HANDLE = VA_Setup(1 "vga"); ,
if (VC_HANDLE)
ready = 1;
}
if (ready)
{
if (!VA_Saccess(1,VC_HANDLE))
{
lLen = 80;
iFunction = 1;
VA_GetAlarmList(
1,VC_HANDLE, (DINT) pcAlarmline, (DINT) &lLen,iFunction);
VA_Srelease(1,VC_HANDLE);
}
}
}
3.3.8.8 Alarm Information at the Cursor Position − VA_GetAlCurPos
The VA_GetAlCurPos ascertains the group and alarm numbers of an alarm entry at the current cursor position
in an alarm list.
3.3.8.8.1 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 pGroupNumber USINT Group number of the alarm entry at the current cursor position.
IN pAlarmNumber USINT Alarm number of the alarm entry at the current cursor position.
OUT Return Value UINT Not equal to 0 if error occurs
3.3.8.7 Reading Alarm Lists − VA_GetAlarmList 143