Thermocouple readings with PCI-6024e using Matlab/Simulink/xPC Target

[cormon]

I am in a bit of a hole. I have a National Instruments PCI-6024E board, SCC-2345 and SCC-TC01 for thermocouple readings. The SCC-TC01 offers signal conditioning and cold junction compensation. I am use K-Type thermocouples to read temperatures. The PCI-6024E provides a voltage output for my thermocouple readings. My problem is that when running xPC Target I get a negative voltage at room temperature. From reading NIST Monograph 175 my voltage should be positive at room temperature. Can anyone help me figure out what is the problem with my thermocouple readings?

[Efrain_G]

Make sure that when you create a DAQmx Task in MAX (Measurement & Automation Explorer) for a temperature measurement, the physical channel to measure is a channel on the SCC module module, not on the DAQ card in your computer.