Section 7: Command reference
Model 2651A High Power System SourceMeter® Instrument Reference Manual
7-100
2651A-901-01 Rev. A / March 2011
Also see
(on page 7-83)
(on page 7-85)
(on page 7-103)
io.input()
This function assigns a previously opened file, or opens a new file, as the default input file.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function Yes
(see
Details
)
Usage
fileVar
= io.input()
fileVar
= io.input(
newfile
)
fileVar
The descriptor of the input file or an error message (if the function fails)
newfile
A string representing the path of a file to open as the default input file, or the
file descriptor of an open file to use as the default input file
Details
The
newfile
path may be absolute or relative to the current working directory.
When using this function from a remote TSP-Link
®
node, this command does not accept a file descriptor and
does not return a value.
If the function fails, an error message will be returned.
Also see
(on page 7-100)
io.open()
This function opens a file for later reference.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function No
Usage
fileVar, errorMsg
= io.open(
path
)
fileVar, errorMsg
= io.open(
path, mode
)
fileVar
The descriptor of the opened file
errorMsg
Indicates whether an error was encountered while processing the
function
path
The path of the file to open
mode
A string representing the intended access mode (
"r"
= read,
"w"
= write, and
"a"
= append)