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Beispielprogramm für PREL16
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QLIB Sample for PREL16
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/*
** Sample Source Visual-C++ 6.0 for QUANCOM PREL16 Relay board
**
** QUANCOM: 16 Channel Relay Card
**
** Install QLIB32 before running this program
**
*/
/*
** Standard-Includes
*/
#include <windows.h>
#include <stdio.h>
#include "qlib.h"
void main ()
{
ULONG relay = 0L;
/* receives handle for prel16 board */
ULONG handle = NULL;
/* 0 = first card in system ... 7 = eight card in system */
ULONG nCardNo = 0; /* we use only one PREL16 card here, so we take the first one */
/* get the handle to the relay board */
if ((handle = QAPIExtOpenCard(PREL16,nCardNo)) == 0L)
{
/* if the program stops here, no card was found */
printf("Couldn't open PREL16 relay board.\n");
return;
}
/* PREL16 board found */
relay = 1L;
/* loop forever */
while ( 1 )
{
/* this command sets the relays */
QAPIExtWriteDO16(handle, 0, 1L << ( relay - 1), NULL);
if ( relay == 1 )
printf("Relay 1 is switched on. Red LED on the board should be switched on !\n", relay );
else
printf("Relay %i is switched on. Red LED should be switched off!\n", relay );
/* pause for 2 seconds */
Sleep(2000);
if ( relay > 16L )
{
/* only 16 relays */
relay = 1L;
printf("\nPress Ctrl+C to terminate the program.\n\n");
}
else
{
/* switch on next relay on */
relay++;
}
}
}
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