User guide

Monitoring/Control Functions 49
PXIs-2719A
An initialized COM port.
H:
DC 5V alarm upper threshold (voltage, range 0 to 1.0)
L:
DC 5V alarm lower threshold (voltage, range 0 to 1.0)
Return Value
TRUE if the function succeeded, FALSE if failed.
Example
BOOL ret;
float high = 0.25;
float low = 0.25;
ret= Set5VAlarm(hCom, high, low);
Set3V3Alarm
Description
Sets the chassis DC 3.3V threshold, beyond which the DC 5V
voltage triggers the alarm.
Syntax
BOOL Set3V3Alarm(HANDLE hCom ,float H, float
L)
Parameters
com:
An initialized COM port.
H:
DC 3.3V alarm upper threshold (voltage, range 0 to
0.66)
L:
DC 3.3V alarm lower threshold (voltage, range 0 to 0.66)