VXI VT1422A - Manual (Page 263)

VT1422A Command Reference 261 Chapter 7
CALCulate
errStatus = hpe1422_cmd(vi, "SENS:REF:CHAN (@10001),(@10002:10031)");
/* Specify those channels to be scanned */
errStatus = hpe1422_cmd(vi, "ROUT:SEQ:DEF (@10001:10031,10000)");
errStatus = hpe1422_cmd(vi, "INIT");
/* read voltages back into array */
errStatus = hpe1422_cmd(vi, "FORM PACK,64");
/* Get unconverted data from the FIFO */
errStatus = hpe1422_readFifo_Q(vi, 32, 64, voltArray, &howManyRead);
/* build command string for thermistor temp calculation,
voltArray[0] is thermistor voltage and voltArray[31] is
excitation voltage. Bridge resistance is 397,000 ohms.
*/
sprintf(command, "CALC:TEMP:THER? %lf,%lf,%lf\n", voltArray[0],voltArray[31],
397000);
/* get the thermistor temperature */
errStatus = hpe1422_cmdReal64_Q(vi, command, &degC);
/* Get unconverted thermocouple data from the FIFO */
errStatus = hpe1422_calcTempTC_Q(vi, "J", degC, 30, &voltArray[1], tempArray,
&howManyRead);