Ch1/Ch2 Output Commands - Stanford Research Systems SR865 Operation Manual

114 Programming

CH1/CH2 Output Commands

COUT(?) [ OCH1 | OCH2 | j ] { , XY | RTHeta | i }
The COUT j, i
Example
COUT OCH2, RTHeta
COUT 1, 1
COUT 0, RTH
COUT 0, XY
COUT? 1
COUT? OCH2
CEXP(?) [ X | Y | R | j ] { , OFF | X10 | X100 | i }
The
CEXP j, i
(i=0), X10 (i=1) or X100 (i=2). Setting an expand for phase is not allowed.
Example
CEXP Y, X100
CEXP 1, 2
CEXP? 1
CEXP? Y
COFA(?) [ X | Y | R | j ] { , OFF | ON | i }
The
COFA j, i
(i=0) or on (i=1). Setting an offset for phase is not allowed.
Example
COFA X, ON
COFA 0, 1
COFA? 0
COFA? X
COFP(?) [ X | Y | R | j ] { , x }
The
COFP j, x
to x percent. The value of x is limited to −999.99 to +999.99 with 0.01 resolution.
Example
COFP X, 12.34
COFA 0, 12.34
COFP? 0
COFP? X
OAUT [ X | Y | R | j ]
The
OAUT j
Offset in the offset keypad display.
SR865 DSP Lock-in Amplifier
command sets CH1 (j=0) or CH2 (j=1) to either XY (i=0) or Rθ (i=1).
Set CH2 to θ
Set CH1 to R
Set CH1 to X
Returns the CH2 output i
command sets the output expand for X (j=0), Y (j=1) or R (j=2) to off
Set Y expand to X100
Returns the Y expand mode i
command turns the output offset for X (j=0), Y (j=1), or R (j=2) to off
Set X output offset to on
Returns the X output offset state i
command sets the output offset percentage for X (j=0), Y (j=1), or R (j=2)
Set X output offset to 12.34%
Returns the X output offset percentage x
command auto offsets X (j=0), Y (j=1), or R (j=2). This is the same as Auto
Chapter 4