File IO sheet

File IO sheet - the size of the file-Hex Hexadcimal A base 16 number system-Nondisplyable characters ASCII characters that cannot be displayed such

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
File I/O Notes and Know-How’s. Peter Bohlen Useful For: Opening and Closing data files Reading data from and writing data to files Reading from and writing to spreadsheet-formatted files Two Types: Typical I/O vi Involves three different vi’s, open/create file vi, read/write file vi, and close file vi High Level I/O vi Compacts all three functions into one vi. Includes Write to spreadsheet file, Read form spreadsheet file, Write to measurement file, and Read from measurement file. Important Terms - ASCII : American standard code for information interchange - Binary byte stream files : Files that store data as a sequence of bytes. - Datalog files : Files that store data as a sequence of records of a single, arbitrary data type that you specify when you create the file - EOF : End of file. Character offset of the end of a file relative to the beginning of the file (EOF is
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: the size of the file)-Hex : Hexadcimal. A base 16 number system-Nondisplyable characters : ASCII characters that cannot be displayed, such as null space, backspace and tab-Not-a-path : A predefined value for the path control that means that a path is not valid-Not-a-refnum : a predefined value that means the refnum associated with an open file is invalid. -Refnum: Identifier that LabVIEW associates with a file when you open it. You use the file refnum to indicate that you want a function or VI to perform an operation to on the open file-String: A sequence of displayable or nondisplayble ASCII characters.-Text byte stream files : Files that store data as a sequence of ASCII characters Example Useful Sources on File I/O-http://www.engr.iupui.edu/me/courses/me340lab/LVLesson6.pdf-http://zone.ni.com/reference/en-XX/help/371361B-01/TOC23.htm...
View Full Document

This note was uploaded on 11/03/2009 for the course BIOL 90726 taught by Professor Weakley during the Spring '09 term at UNC.

Page1 / 2

File IO sheet - the size of the file-Hex Hexadcimal A base 16 number system-Nondisplyable characters ASCII characters that cannot be displayed such

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online