Operator`s manual

Table Of Contents
Signametrics 150
Parameter Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
iSamples
int The number of samples to take following a Trigger events.
Allowd range is 1 to 250.
iEvents
int The number of Trigger events to expect. Range 1 to 30,000.
iEdge
Int The edge polarity of the trigger signal. 1 for Positive, or leading
edge, and 0 for negative or trailing edge trigger.
Return Value The return value is one of the following constants.
Value
Meaning
DMM_OKAY
Operation successfully terminated
Negative Value
Error code.
Example double Reading[150];
DMMTrigBurst(0, 10, 100, 0); // Negative edge, 10 samples
//per trigger event, total of 100 events
for(i=0; i < 150 ; i++) // read buffer
while( ! DMMReadMeasurement(0 , Reading[i]) );
DMMUnlockCounter
SMU2060 SMU2064
Description Return the indicated pulse width in string format.
#include "SMU2060.h"
int DMMUnlockCounter(int nDm)
Remarks This function unlocks the freqency counter range, allowing it to autorange. This is the
default mode of operation for the frequency coutner. User this function to release the
range lock which was caused by using the DMMSetCounterRange function.
Parameter
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
Return Value The return value is one of the following constants.
Value
Meaning
Negative Value
Error code
Positive Value < 100
The length of the returned string
Postive Value 100
Warning code
Example int status = DMMUnlockCounter(0);