270M
Rapid
Scanning Imaging Spectrograph
3 Hardware Table Specification:
Hardware Number Device
0
1
2
5
6
7
9
10
13
15
Monochromator motor*
Front Entrance Slit
Front Exit Slit
Entrance Mirror
Turret
Front Entrance Shutter
Side Entrance Slit
Side Exit Slit
Exit Mirror
Side Entrance Shutter
3000
400
400
400
400
400
400
400
400
400
* - Device has a calibration (limit) switch.
4 Power On Settings for the 270M:
Frequency Regulated
by
MONOFREQ
SLITFREQ
SLITFREQ.
DCFREQ
DCFREQ
SHUTTERFREQ
SLITFREQ
SLITFREQ
DCFREQ
SHUTTERFREQ
At startup (hardware startup, not device driver initialization), the entrance mirror will be
set
to
use the front entrance slit, the exit mirror will be set
to
use the front exit slit, the
shutters will be closed, and the turret will be set
to
grating
1.
When power is first applied
to
a 270M, the controller has no way
of
knowing the slit
width
or
the grating position. Therefore the controller must move the slit motors and
the wavelength motors
to
a known position.
"I
9 38000;• - moves the wavelength motor until the calibration switch fires, which is
nearly 38000 steps from zero wavelength. This calibration position varies somewhat
from one machine
to
another. You will find the correct value
on
the •oMD.INI steps•
tag on the back
of
your instrument. This command will reset the device driver.
•1
12 1120;• - opens. all four slits completely and then closes them
by
11.20
steps.
Even if you have only one, two,
or
three slits, the driver will send signals
to
initialize all
four possible slits.
Revised November
24,
1992
67
Leica Microsystems, Inc.'s Ex. 1033
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