Campbell Scientific CR3000 Micrologger - Manual (Page 519)

Appendix A. CRBasic Programming Instructions
519
FileOpen
Opens an ASCII text file or a binary file for writing or reading.
Syntax
FileHandle = FileOpen("FileName", "Mode", SeekPoint)
FileRead
Reads a file referenced by FileHandle and stores the results in a variable or
variable array.
Syntax
FileRead(FileHandle, Destination, Length)
FileReadLine
Reads a line in a file referenced by a FileHandle and stores the result in a variable
or variable array.
Syntax
FileReadLine(FileHandle, Destination, Length)
FileRename
Changes the name of file on a CR3000 drive.
Syntax
FileRename(drive:OldFileName, drive:NewFileName)
FileSize
Returns the size of a file stored in CR3000 memory.
Syntax
FileSize(FileHandle)
FileTime
Returns the time the file specified by the FileHandle was created.
Syntax
Variable = FileTime(FileHandle)
FileWrite
Writes ASCII or binary data to a file referenced in the program by FileHandle.
Syntax
FileWrite(FileHandle, Source, Length)
Include
Inserts code from a file (Filename) at the position of the Include () instruction at
compile time. Include cannot be nested.
Syntax
Include("Device:Filename")
NewFile
Determines if a file stored on the datalogger has been updated since the
instruction was last run. Typically used with image files.
Syntax
NewFile(NewFileVar, "FileName")