MCS260B
CORNERSTONE 260B MONOCHROMATORS
59
Command:
UNITS
Purpose:
Specify wavelength units. Wavelength values will be displayed,
reported and accepted in these units.
Parameter:
A string representing the units. Allowable strings:
‘nm’, ‘um’, and ‘wn’.
Example:
units nm
: set wavelength units to nanometers
Example:
units um
: set wavelength units to microns
Example:
units wn
: set wavelength units to wave number (cm
-1
)
Default:
nm
Command:
UNITS?
Purpose:
Query wavelength units.
Example:
units?
E.g. response:
um
: units are microns
Command:
VERSION?
Purpose:
Query the CS260B firmware version.
Example:
version?
E.g. response:
2.01
: version is 2.01
Command:
WAVE?
Purpose:
Query the wavelength corresponding to the actual position of the
grating rotation stage. This may be slightly different from the
wavelength setting, since the rotation stage has a finite number of
possible positions.
Example:
wave?
E.g. response:
444.004
: Actual wavelength is slightly different from 444nm setting.
Command:
WAVEMAX?
Purpose:
Query the maximum wavelength allowable for the current grating.
Response is in the current user units.
Example:
wavemax?
E.g. response:
1102.261
: Maximum allowable wavelength is 1102.261 nm (assuming
nm is the user’s units).
Note
The maximum wavelength depends on the maximum allowable
rotation of the grating stage and the grating line spacing.
