IMAQ Serial Read VI
Installed With: NI Vision Acquisition SoftwareReads in data from the serial port on image acquisition devices that support serial communication.
This VI fills the buffer with characters received from the serial port until either a termination character has been received or the timeout period has elapsed. The termination character is defined in the camera file associated with the session.
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IMAQ Session In identifies the device. |
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Timeout is the time, in milliseconds, to wait for the read to finish. |
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error in (no error) describes error conditions that occur 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.
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IMAQ Session Out has the same value as IMAQ Session In. |
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String Read is the string read from the serial port. |
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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, it describes the error status that this VI or function produces. Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.
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