2.5 Command List
2 – 17
Note that the input hardware has a positive pull-up resistor; the port
should be configured to the high state for use as a manual input.
Alignment Mode
CHOP(?)
{
i
}
Set (query) alignment mode– i.e., continuous chopping– of shutter
{
to
i
}
. If parameter
i
is 0, alignment mode is turned o
ff
. If it is 1, alignment
mode is turned on. This command will fail if the instrument is in
external level
mode. See
§
1.2.5.2 for more about alignment mode.
Display On
/
O
ff
DISP(?)
{
i
}
Set (query) the display state
{
to
i
}
. If parameter
i
is 0 the display is
turned o
ff
. If it is 1 the display is turned on. See
§
1.2.5.6 for more
about display blanking.
Enable Shutter
ENAB(?)
{
i
}
Set (query) the enable state of the shutter
c
{
to
i
}
. If parameter
i
is 0
the shutter is in sleep mode. If it is 1 then shutter is powered on. The
query form will return 2 if a fault has been detected for the shutter.
The fault is cleared when the shutter is turned o
ff
. Changing the state
of a shutter from disabled to enabled takes 500 ms to complete.
See
§
1.2.2.4 for more about shutter head operation and standby
modes.
Mute Alarm
MUTE(?)
{
i
}
Set (query) the mute status on the audible alarm. If
i
is 0 alarms are
audible. If 1, alarms are muted. See
§
1.2.2.5 and
§
1.2.5.1 for more
about faults and alarms on the SR470 .
Shutter Polarity
POLR(?)
{
i
}
Set (query) the polarity of the shutter to
i
. A value of 0 indicates
the shutter is normally open. A value of 1 indicates the shutter is
normally closed.
See
§
1.2.2.2 for more about shutter polarity.
SR470 Shutter Controller
