2 – 10
Remote Operation
Reset the Instrument
*RST
Reset the SR474 to default configuration. This is equivalent to power
cycling the unit with the
Reset
key depressed; see also
§
1.2.4.
The following commands are internally executed upon
*RST
:
1. Turn o
ff
all shutter channels
2. Place all shutters in manual control
3. Set all shutters to the unasserted (
normal
) state
4. Turn o
ff
chopping (alignment mode) on all channels
5. Select
Audible
alarm mode
6. Turn the display on
7. Select manual configuration for the rear AUX I
/
O port
*RST
CR
Example:
Recall Instrument Settings
*SAV
i
Save instrument settings to location
i
. The parameter
i
may range
from 0 to 9. Locations 1 to 9 are for arbitrary use. Location 0 is used
for current instrument settings. This location is overwritten after
each key press, and restored upon power-on.
The following settings are saved:
1. Enable state of each shutter
2. Source for each shutter
3. Manual state of each shutter
4. Auxiliary I
/
O configuration
5. Alarm Mute
/
Audible selection
6. Display on
/
o
ff
state
*SAV 3
CR
Example:
Save current instruments settings to location 3.
Service Request Enable
*SRE(?)
{
i
}
Set (query) the Service Request Enable register
{
to
i
}
. Bits set in
this register cause the SR474 to generate a service request when the
corresponding bit is set in the STB register.
SR474 Four Channel Shutter Driver