Data Transfer Commands - Stanford Research Systems SR860 Operation Manual

132 Programming

Data Transfer Commands

OUTR? [ DAT1 | DAT2 | DAT3 | DAT4 | j ]
The OUTR? j
The value of j (0–3) corresponds to the
(orange) data channels.
DAT4
Example
OUTR? DAT2
OUTR? 1
OUTP? [ j ]
The OUTP? j
selects the parameter according to the table below. The enumeration strings may be used
instead of the integer value j.
The parameter list is
j
0
1
2
3
4
5
6
7
8
Example
OUTP? 1
OUTP? Y
SNAP? [ j, k ] { , l }
The
SNAP?
SNAP?
time. This is important when the time constant is very short. Using the
commands will result in time delays, which may be greater than the time constant,
between reading X and Y.
The
SNAP?
j, k, l select the lock-in parameters as listed above (see
may be used instead of the integer values for j, k, l.
Example
SNAP? 0,1,4
SNAP? X, Y, IN1
SR860 DSP Lock-in Amplifier
query returns the value of data channel j.
Returns the value of data channel 2 (blue)
query returns the value of a single lock-in parameter. The argument j
enumeration parameter
X X output
Y Youtput
R R output
θ output
THETa
IN1 Aux In1
IN2 Aux In2
IN3 Aux In3
IN4 Aux In4
OUT1 Aux Out1
Returns the value of Y
query returns the values of 2 or 3 parameters at a single instant. For example,
is a way to query values of X and Y (or R and θ) which are taken at the same
command requires at least two arguments and at most three. The arguments
Returns the values of X, Y and Aux In1
(green), (blue),
DAT1 DAT2
j enumeration
9 OUT2
10 XNOise
11 YNOise
12 PHAse
13 SAMp
14 LEVel
15 FINT
16 FEXT
). The enumeration strings
OUTP?
Chapter 4
(yellow) and
DAT3
parameter
Aux Out2
Xnoise
Ynoise
Reference Phase
Sine Out Amplitude
DC Level
Int. Ref. Frequency
Ext. Ref. Frequency
OUTP? or OUTR?