TDMS Start Asynchronous Reads Function

Owning Palette: TDMS Advanced Asynchronous I/O Functions

Requires: Base Development System (Windows)

Starts an asynchronous read process. You cannot configure or start an asynchronous read process unless the previous process has completed or stopped. You can stop an asynchronous read process by using the TDMS Stop Asynchronous Reads function.

Examples

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tdms file specifies a reference number to the .tdms file on which to perform the operation. Use the TDMS Advanced Open function to open the refnum.
total count specifies the total number of values of the data type you want to read from a .tdms file. The default is –1, which specifies that LabVIEW keeps initiating asynchronous reads until this function reaches the end of the .tdms file or you stop initiating asynchronous reads by using the TDMS Stop Asynchronous Reads function.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
data type specifies the type of data on which you want to perform the operation. This input accepts integers, floating-point numbers, Booleans, and timestamps.
Note  You can wire the following floating-point numbers to this input:
  • Single-precision and double-precision floating-point numbers
  • Complex single-precision and double-precision floating-point numbers
  • Extended-precision floating-point numbers
tdms file out returns a TDMS file reference to the .tdms file on which you performed the operation.
error out contains error information. This output provides standard error out functionality.

Examples

Refer to the following VIs for examples of using the TDMS Start Asynchronous Reads function: