How do I add a constant into a DAQMX Graph

[DazM]

Using the example VI "Continious Acquisition Thermocouple Samples Internal Clock" in DAQMX Base how do I add a constant onto the waveform chart that is displaying the thermocouple reading ? What I really want are upper and lower limit constants that are displayed on the graph.

Thanks

[Dennis_Knutson]

Assuming that you're getting an array of waveform data types back from the DAQ board, you just have to append a couple of waveforms with the same number of samples and a fixed value. I modified an example that uses DAQmx but I think the DAQmx base example should be similar. Change the constants to the upper and lower levels that you want or replace the constants with front panel controls.