Hi,
I need some help.
I have cDAQ9189 along with 9201 AI and 9401 DI-DO setup. The AI module receives voltage signals(0-10V) and triggers a DO above a threshold voltage and records the data in a .lvm file.
I have a few queries regarding this setup:-
1. The Analog Input Voltage (0-10V) needs to be scaled as Pressure signal(0-700)bar. I am doing this at "Volt-Pressure Conversion" in Block Diagram. Please convey if this is the correct way to do it.
2. The AI has some glitches, I have grounded the signals but still too many glitches. For this, I am using filters before and after scaling. Is it OK?
3. When the pressure is above a threshold value, the analog signal is converted to a digital signal which I am writing to a DO. Due to a lot of glitches, the DO flickers a lot. How can we smoothen this so that the DO doesn't flicker?
4. I am writing all this data to a .lvm file. The issue is I am getting relative time instead of absolute time. I need the measurement file in the following format:-
| Time(Absolute) |
Time(Relative) |
Pressure(bar) |
Pressure(Volt) |
DO |
I have attached the VI and the .lvm file.
Please HELP.
