2 Visual Components Manuals

UINT _GLOBAL color;
unsigned long VC_HANDLE;
_CYCLIC void Cyclic(void)
{
x1 = 150;
y1 = 100;
x2 = 100;
y2 = 150;
color /* = Black 0; */
if (!ready)
{
VC_HANDLE = VA_Setup(1 "vga"); ,
if (VC_HANDLE)
ready = 1;
}
if (ready)
{
if (!VA_Saccess(1,VC_HANDLE))
{
VA_Line (1,VC_HANDLE,x1,y1,x2,y2,color);
VA_Srelease(1,VC_HANDLE);
}
}
}
3.3.8.19 Acknowledging Alarms from a Certain Group − VA_QuitAlarms
Using the VA_QuitAlarms function, alarms can be acknowledged from a certain group which triggers the group
alarms. All alarms are acknowledged if group number 65536 (0xffff) is specified.
3.3.8.19.1 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 GroupNumber UINT Group number which should be acknowledged
OUT Return Value UINT Not equal to 0 if error occurs
3.3.8.19.2 Example for Automation Basic
(* cyclic program *)
if ready 1 then
VC_HANDLE = VA_Setup(1 "vga") ,
VC_HANDLE if 0 then
ready = 1
endif
endif
if ready = 1 then
VA_Saccess(1,VC_HANDLE)= if
0 then
endif
3.3.8.19.3 Example for C Programming
#include
#include
#include
UINT _GLOBAL ready;
UINT _GLOBAL Groupnumber;
unsigned long VC_HANDLE;
_CYCLIC void Cyclic(void)
VA_QuitAlarms(1,VC_HANDLE, Groupnumber)
VA_Srelease(1,VC_HANDLE)
endif
Introduction to Visual Components 2.3
154 3.3.8.19 Acknowledging Alarms from a Certain Group − VA_QuitAlarms