Display And Output - Stanford Research Systems SR830 Manual

Remote Programming
DISPLAY and OUTPUT COMMANDS
DDEF (?) i {, j, k}
FPOP (?) i {, j}
OEXP (?) i {, x, j}
AOFF i
The DDEF command selects the CH1 and CH2 displays. The parameter
i selects CH1 (i=1) or CH2 (i=2) and is required. The DDEF i, j, k com-
mand sets display i to parameter j with ratio k as listed below.
CH1 (i=1)
j display
0 X
1 R
2 X Noise
3 Aux In 1
4 Aux In 2
k ratio
0 none
1 Aux In 1
2 Aux In 2
The DDEF? i command queries the display and ratio of display i. The
returned string contains both j and k separated by a comma. For exam-
ple, if the DDEF? 1 command returns "1,0" then the CH1 display is R
with no ratio.
The FPOP command sets or queries the front panel (CH1 and CH2)
output sources. The parameter i selects CH1 (i=1) or CH2 (i=2) and is
required. The FPOP i, j command sets output i to quantity j where j is
listed below.
CH1 (i=1)
j output quantity
0 CH 1 Display
1 X
The OEXP command sets or queries the output offsets and expands.
The parameter i selects X (i=1), Y (i=2) or R (i=3) and is required. The
parameter x is the offset in percent (-105.00 ≤ x ≤ 105.00). The parame-
ter j selects no expand (j=0), expand by 10 (j=1) or 100 (j=2). The OEXP
i, x, j command will set the offset and expand for quantity i. This com-
mand requires BOTH x and j. The OEXP? i command queries the offset
and expand of quantity i. The returned string contains both the offset and
expand separated by a comma. For example, if the OEXP? 2 command
returns "50.00,1" then the Y offset is 50.00% and the Y expand is 10.
Setting an offset to zero turns the offset off. Querying an offset which is
off will return 0% for the offset value.
The AOFF i command automatically offsets X (i=1), Y (i=2) or R (i=3) to
zero. The parameter i is required. This command is equivalent to press-
ing the [Auto Offset] keys.
5-8
CH2 (i=2)
j display
0 Y
θ
1
2 Y Noise
3 Aux In 3
4 Aux In 4
k ratio
0 none
1 Aux In 3
2 Aux In 4
CH2 (i=2)
j output quantity
0 CH 2 Display
1 Y