Multifunction DAQ

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Digital Output issues with DAQ Assistant

Trying to output a digital signal.  When trying to feed the signal from the Simulate Signal Express VI to the DAQ Assistant Express VI, we get a message saying that there are 640 channels of data and it is only expecting 1.  To prevent this, we made a case structure and fed the DAQ Assistant a boolean but get this error message:

 

You have connected a scalar (non-array) data type to an array of the same data type. This type conflict may be resolved by building the scalar type into an array. Check for a tunnel on a loop that has indexing incorrectly disabled.
The type of the source is boolean (TRUE or FALSE).
The type of the sink is 1-D array of boolean (TRUE or FALSE).

 

How do we fix this?

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To convert a single data point to an array, you need to use the Build Array VI.  Though the DAQ Assistant might be looking for a whole Port of Data (an array of 8 seperate booleans, which can be built using the Build Array VI).
Doug Farrell
Solutions Marketing - Automotive
National Instruments

National Instruments Automotive Solutions
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