Introduction To Programming; Example Programs - Agilent Technologies 8163A Programming Manual

The Agilent 816x VXIplug&play Instrument Driver
void check (ViSession instrumentHandle, ViStatus errStatus)
{
/* variables for error code and message */
ViInt32 inst_err;
ViChar err_message[256];
/* VI_SUCCESS is 0 and is defined in VISATYPE.h */
if(VI_SUCCESS > errStatus)
{
/* hp816x_INSTR_ERROR_DETECTED defined in hp816x.h */
if(hp816x_INSTR_ERROR_DETECTED == errStatus)
{
/* query the instrument for the error */
hp816x_error_query(instrumentHandle, &inst_err, err_message);
/* display the error */
printf("Instrument Error : %ld, %s\n", inst_err, err_message);
}
else /* driver error */
{
/* get the driver error message */
hp816x_error_message(instrumentHandle, errStatus, err_message);
/* display the error */
printf("Driver Error : %ld, %s\n", errStatus, err_message);
}
/* optionally reset the instrument, close the instrument handle */
hp816x_reset(instrumentHandle);
hp816x_close(instrumentHandle);
exit(1);
}
return;
170
4 Create a routine to respond to the error or event. This example queries
whether an error has occured, checks if the error is an instrument
error and then checks if the error is a driver error.

Introduction to Programming

Example Programs

See the Online Help and "Programming Examples" on page 123.
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System,
& Agilent 8166A Lightwave Multichannel System, Third Edition
Introduction to Programming