Changing baseline of channels

Dear All,
I am working with NI cRIO-9215 with BNC (HI-speed USB carrier device). I am measuring 4 multiple channels. They all have the same same baseline i.e "0". I want to change the baseline of the 4 channels so that I can see them more clearly in one disply and not on top of each other. Any ideas?
Best regards.
Munir

There are at least two ways you can do this in SignalExpress. Using either the DAQmx Assistant Step, or using the Formula Step.
To use the DAQmx Assistant Step, drop the step and select the channels you want. For each channel, change the "Custom Scaling" option from the default of "NO SCALING" to the "CUSTOM SCALING" option. Using a custom scale you can change the values for each channel in a number of ways. If you choose the "Linear Scale" option you can apply the formula "y=mx+b" to each value. If you change the "b" value you are applying a horizontal offset. If you make "b" a different value for each channel the graph will show each channel seperately instead of stacked on top of each other. This assumes that your original signals are directly on top of one another and you want to instead see them each seperately but still on the same graph. You can use the "Custom Scaling" option to manipulate the channel values in a number of other ways and each channel can have its own unique scaling formula.
You can also use the SignalExpress "Formula Step" to apply an offset to each signal. However, in this case you must drop one step for each channel as each formula step can only modify one signal so it sounds like you will need 4 formula steps to do this plus the original step you are using to get the channels initially (I assume you are using the new DAQmx Assistant Step since the cDAQ device you are using is only supported by this step).
Either way will work.
-Eric Reffett

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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If someone helped you out, please select their post as the solution and/or give them Kudos!
Solved!
Go to Solution.
Attachments:
Init HWC Device.vi ‏24 KB
Run HWC Device.vi ‏30 KB

Through trial and error I was able to come up with a way to do this:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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