Scan Commands - Stanford Research Systems SR865A Operation Manual

128 Programming

Scan Commands

SCNPAR(?) { Fint | REFAmp | REFDc | OUT1 | OUT2 | i }
The
SCNPAR i
(i=2), Out1 (1=3) or Out2 (i=4).
Example
SCNPAR F
SCNPAR 0
SCNPAR?
SCNLOG(?) { LIN | LOG | i }
The SCNLOG i
Example
SCNLOG LIN
SCNLOG 0
SCNLOG?
SCNEND(?) { ONce | REpeat | UPdown | i }
The SCNEND i
(i=2).
Example
SCNEND REPEAT
SCNLOG 1
SCNLOG?
SCNSEC(?) { x }
The SCNSEC x
20 days (1728000 seconds).
Example
SCNSEC 1234
SCNSEC 1.234E3
SCNSEC?
SCNAMPATTN(?) {i}
The SCNAMPATTN i
scanning sine out amplitude to automatic (i=0) or fixed (i=1).
Normally, the sine out hardware will automatically switch one or more balanced
attenuators into the output signal path to optimize performace for the commanded
amplitude. During scans, however, it can be helpful to force the attenuators to remain in a
fixed configuration, inhibiting the relay switching that would otherwise introduce
transients in the sine output.
SR865A DSP Lock-in Amplifier
command sets the scan parameter to Fint (i=0), Ref Ampl (i=1), Ref dc
Set the scan parameter to Fint
Returns the scan parameter i
command sets the scan type to linear (i=0) or logarithmic (i=1).
Set the scan type to linear
Returns the scan type i
command sets the scan end mode to once (i=0), repeat (i=1) or up/down
Set the scan end mode to repeat
Returns the scan end mode i
command sets the scan time to x seconds. The scan time is limited to
Set the scan time to 1234 seconds (20:34)
Returns the scan time in seconds
command sets the operating mode for the output attenuators when
Chapter 4