Keithley 2657A, Reference Manual, Page: 235 / 805

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 5: Introduction to TSP operation
2657A-901-01 Rev. B/December 2012 5-7
File descriptors cannot be passed between nodes in a TSP-Link
®
system, so the
io.open()
,
fileVar::read()
, and
fileVar::write
commands are not accessible to the TSP-Link system.
However, the default input and output files mentioned above allow for the execution of many file I/O
operations without any reference to a file descriptor.
fileVar:close() (on page 7-88)
fileVar:flush() (on page 7-88)
fileVar:read() (on page 7-89)
fileVar:seek() (on page 7-90)
fileVar:write() (on page 7-90)
fs.chdir() (on page 7-94)
fs.cwd() (on page 7-94)
fs.is_dir() (on page 7-94)
fs.is_file() (on page 7-95)
fs.mkdir() (on page 7-95)
fs.readdir() (on page 7-96)
fs.rmdir() (on page 7-96)
io.close() (on page 7-103)
io.flush() (on page 7-104)
io.input() (on page 7-104)
io.open() (on page 7-105)
io.output() (on page 7-106)
io.read() (on page 7-106)
io.type() (on page 7-107)
io.write() (on page 7-107)
os.remove() (on page 7-146)
os.rename() (on page 7-147)
The following standard I/O commands are not supported at this time:
File I/O
•
fileVar
:lines()
•
fileVar
:setvbuf()
•
io.lines()
•
io.popen()
GPIB
This attribute stores the GPIB address.
gpib.address (on page 7-99)
Instrument identification
These commands store strings that describe the instrument.
localnode.description (on page 7-134)
localnode.model (on page 7-136)
localnode.revision (on page 7-139)
localnode.serialno (on page 7-140)