High Voltage SourceMeter Instrument Reference Manual Section 14:
2470-901-01 Rev. A / May 2019 14-79
file.open()
This function opens a file on the USB flash drive for later reference.
Type TSP-Link accessible
Affected by Where saved Default value
Usage
fileNumber = file.open("fileName", accessType)
A number identifying the open file that you use with other file commands to write,
read, flush, or close the file after opening
A string that contains the file name to open, including the full path of file
The type of action to do:
 Append the file: file.MODE_APPEND
 Read the file: file.MODE_READ
 Write to the file:
Details
The path to the file to open must be absolute.
The root folder of the USB flash drive has the following absolute path:
"/usb1/"
Example
file_num = file.open("/usb1/testfile.txt", file.MODE_WRITE)
if file_num != nil then
file.write(file_num, "This is my test file")
file.close(file_num)
Opens file testfile.txt for writing. If no errors were found while opening, writes This is my test file
and closes the file.
Also see
None
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