Keithley 3721-ST User Manual

Section 11: TSP command reference Series 3700A System Switch/Multimeter Reference Manual
11-242 3700AS-901-01 Rev. D/June 2018
fileVar:close()
This function closes the file that is represented by the fileVar variable.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
No
Usage
fileVar:close()
fileVar
The file descriptor variable to close
Details
This command is equivalent to io.close(fileVar).
Note that files are automatically closed when the file descriptors are garbage collected.
Also see
File I/O (on page 9-27)
fileVar:flush() (on page 11-242)
fileVar:read() (on page 11-243)
fileVar:seek() (on page 11-244)
fileVar:write() (on page 11-245)
io.close() (on page 11-253)
io.open() (on page 11-255)
fileVar:flush()
This function writes buffered data to a file.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
No
Usage
fileVar:flush()
fileVar
The file descriptor variable to flush
Details
The fileVar:write() or io.write() functions buffer data, which may not be written immediately
to the USB flash drive. Use fileVar:flush() to flush this data. Using this function removes the
need to close a file after writing to it, allowing the file to be left open to write more data. Data may be
lost if the file is not closed or flushed before a script ends.
If there is going to be a time delay before more data is written to a file, and you want to keep the file
open, flush the file after you write to it to prevent loss of data.
Also see
File I/O (on page 9-27)
fileVar:write() (on page 11-245)
io.open() (on page 11-255)
io.write() (on page 11-257)

Keithley 3721-ST Specifications

General

Brand	Keithley
Model	3721-ST
Category	Multimeter
Language	English