National Instruments VXI-SC-1102 user manual B

© National Instruments Corporation B-1 VXI-SC-1102/B/C User Manual
Appendix
B
Calibration Sample Program
This chapter contains a sample program to help you calibrate your
submodule.
Sample Program for Calibration
The following sample C program will help you calibrate the
VXI-SC-1102/B/C submodules. The calibration constants are stored
only in NI-DAQ memory. You must enter the (input, output) voltage
pairs read by a DMM by hand. Before running the sample program
below, you must run the NI-DAQ Configurat ion Utility to configure the
VXI-SC chassis and to configure the DAQ device that will
communicate with the VXI-SC-1102/B/C.
The following sample program is written to work for a DAQ device,
such as the VXI-MIO-64E-1, with a 5 V full-scale input:
#include <stdio.h>
#include <math.h>
#include <dataacq.h>
#define MIO_FULL_SCALE 5.0 /* valid for VXI-MIO-64E-1 */
#define N_VXI_SC_SLOTS 24
#define NIDAQMEM 0
#define ALL -1
int
enterInt (char *prompt)
{short ret;
int value;