LabVIEW
Channel data
Are you doing the same formula for all of the channels? You should probably avoid using the formula node and use the actual math primitives.
@andy_kennaugh wrote:
How can I log formated data in TDMS, I dont really want voltages rather I want measured parameters like temp. directly in TDMS file.
In that case, create DAQmx Scales. These scales can then be applies to your channels inside of your task. That would also make it so that you do not have to do the scaling in your own code since DAQmx just does it all for you.
@andy_kennaugh wrote:
I have different channels for different purposes, 6 thermocouple than 14 pressure transducers
Then the DAQmx Scales is definately the way you want to do. You have to apply the scale to each channel individually, so they call all have different scales.
@andy_kennaugh wrote:
No idea about scales, I'll do some searching
They are set up in MAX. There is a section direclty under "My System" to manage the scales. Just right-click on the scales and choose to create a new one. Then in the task setup screen, each channel has a "Custom Scaling" drop down that you can use to associate a scale to a channel.
Your problem might be based on your Max and Min for the channel setups. Those should be the values you will have AFTER the scale is applied. So if you expect a voltage range of -1.5 to 10, you should set your min and max to -150 and 1000 (since your scale is just multiplying by 100).
