Hello,
I would like to first state that I am very new to LabView and DAQ devices.
I am having an issue that concerns the NI 9472 DO DAQ device. I am using this to control a heating element using PWM. I read the element temperature using a type-K thermocouple wired to the NI 9219 AI device. Using a PID loop I acquire my DC %, and from that % value I can use PWM.
The issue is this: when I run my VI, the PWM graph shows no signs of functionality. At first it did work, but was very slow. My solution was to create a separate while loop and this fixed the issue. Though upon completion, it didn't work, but was able to run.
I tried deleting the Analog to Digital VI as well as the DO DAQ Assistant, and that solved the issue. But obviously I need those functions in order to achieve desired results.
I'm thinking the issue lies within the DAQ device or my chosen method of going from digital waveform (source) to the 1D array digital waveform (sink) when connecting the A to D VI to the DAQ Assistant.
Any ideas? I'm sorry if this is confusing, I'm still learning very much.
Thanks!