Operator`s manual

Signametrics 110
etTrimD
SM2040  SM2042 
Description
, int iValue)
Remarks is Secondary rim DAC to a value between 0 and 100. The trim
DAC can be set r it is not automatically
performed, such LOOP mode is selected. An
e Comparator Threshold. This
ler’s resources and
must
DMMS AC
SM2044 ;
Set the Trim DAC level.
#include "sm204032.h"
#include "UserDMM.h"
int DMMSetTrimDAC(int nDmm
Th function sets the T
to augment the main 12 bit DAC, wheneve
as in VDC and VAC source while OPEN_
example would be in DCI source, or when setting th
function consumes a lot of the on-board microcontrol
be turned
off when not in MMDisableTrimDAC to turn off. With the Trim DAC the
effective resolut omposite DAC is increased to 16 bits. With iValue set to 100,
the Trim DAC adds sl of the 12-bit DAC. See DMMSetDCVSource
and DMMSetA details.
r
use. Use D
ion of the c
ightly over 1 LSB
CVSource for more
Paramete Type/Description
nDmm
int Identifies the DMM. DMMs are
numbered starting with zero.
int Amplitude can be set from 0 to 100, corresponding to 0% to
100% Trim DAC level.
Value
iValue
Return Value Integer error code.
Meaning
DMM_O
Negativ
Example
DMMStartTota
SM2040  SM2042 ;
Description ar the totaliz he totalizer.
#include "UserDMM.h"
include "sm2
int DMMStart
e in ACV measurement function, and
a valid range m ted. This function clears the Totalized count, sets the edge
sense, and starts the Totalizer. The totalized value can be read during the accumulation
Howeve erruption. If no reads are performed
ccumul 45 kHz. If reads are performed
during the accumulation period, this rate could be as low as 20 kHz. The Threshold DAC
sets the levels at which signals are counted. During accumulation, no other command
(except DMMReadTotalizer) should be used. When done, this function must be turned
off using DMMStopTotalizer. After the Totalizer is stopped, the accumulated result can
KAY
Operation successfully completed.
e Value
Error code
DMMSetDCVSource(0, 5.0); // Set source to 5V
DMMSetTrimDAC(0, 50); // add about 2.5mV to output
lizer
SM2044 ;
Cle ed value and start t
# 04032.h"
Totalizer(int nDmm, int Edge)
Remarks This is a Secondary function and the DMM must b
ust be selec
period.
during a
r, it could affect the count by the int
ation, the input rate can be as high as