NI-IMAQdx VI Reference

IMAQdx Read Memory2 VI

  • Updated2023-02-21
  • 4 minute(s) read
Owning Palette: NI-IMAQdx Low-Level
Installed With: NI Vision Acquisition Software

Accesses registers on the camera and reads a string from the camera.

IMAQdx Read Memory2

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Session In is a unique reference to the camera, which you can obtain with the IMAQdx Open Camera VI.

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Offset is the register location to access. Refer to the camera documentation for more information about camera-specific register ranges. Use the Property Node Properties»Camera Information»Base Address to get the base address for your camera.

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Memory Size specifies the number of bytes to read.

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error in describes the error status before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. Explain Error (or Explain Warning) gives more information about the error displayed.

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status boolean is either TRUE (X) for an error, or FALSE (checkmark) for no error or a warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

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code input identifies the error or warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

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source string describes the origin of the error or warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

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Session Out is a unique reference to the camera. Session Out is the same as Session In.

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Value specifies the string read from the memory offset.

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error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, error out describes the error status that this VI produces. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.

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code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.

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source identifies where and why an error occurred. The source string includes the name of the VI that produced the error, what inputs are in error, and how to eliminate the error.

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