Command Groups
TDS Family Oscilloscope Programmer Manual 2–15
Calibration and Diagnostic Commands
Calibration and Diagnostic commands let you start the self-calibration and
diagnostic routines that are built into the oscilloscope. The diagnostic test
operation includes selecting the test sequence, executing the sequence, and
viewing the results. Table 2–7 lists these commands.
Table 2–7: Calibration and Diagnostic Commands
Header Description
 Perform an internal self-calibration
 Return diagnostic tests status
 Return diagnostic test sequence results
$$  Acquisition system diagnostic test sequence
$ Diagnostic test sequence for Acquisition,
Processor, Display, and Front panel
$ Processor diagnostic test sequence
$!& Display system diagnostic test sequence
$ Front panel diagnostic test sequence
 Control of diagnostic tests
Cursor Commands
Cursor commands provide control over cursor (caliper) display and readout.
Table 2–8 lists these commands.
Table 2–8: Cursor Commands
Header Description
 " Return cursor settings
 "$  Cursors on or off; select cursor type
 ""# Return H bar settings
 ""# Return distance between H bars
 ""#% Position a horizontal cursor
 ""#%$
(TDS 400A) Position a horizontal cursor in units of % of
vertical range
 ""#$ Set which cursor the knob controls
 "���"#$# Set H bar units
 " Set cursor tracking mode