Specifications

Signametrics 74
#include "sm2
int DMMInit(i
Remarks This function m ed. It opens the driver for the
specified DMM. The first DMM being 0, the second 1, etc... It also initializes the DMM
and d e DMM hardware. It then initializes the
software and reads the appropriate calibration record for the respective DMM from the
Parameter
Description Initialize a DMM.
04032.h"
nt nDmm, LPCSTR lpszCal)
ust be the first function to be execut
hardware oes extensive self test to th
file specified by lpszCal.
Type/Description
Identifies the DMM. DMMs are numbered starting with zero.
lpszCal
ints to the name of the file containing the calibration
e DMM. Calibration information is normally read
amed SM40CAL.DAT located in the current directory.
ng constants.
Value
nDmm
int
LPCSTR Po
constants for th
from the file n
Return Value The return value is one of the followi
Meaning
OKAY
DMM initialized successfully.
DMM_
ue
Example int i = DMMInit(0,"C:\SM40CAL.dat");// Initialize 1st DMM
SMX2040 ; SMX2042 ; SMX2044
Description Get the status o
#include "sm2
IsAu
s the DMM autorange flag state.
Parame
Negative Val
Error code
DMMIsAutoRange
;
f the autorange flag.
04032.h"
int DMM toRange(int nDmm)
Remarks This function return
ter
Type/Description
nDmm
e DMM. DMMs are numbered starting with zero.
int Identifies th
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