Stanford Research Systems SR865A, Operation Manual

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Chapter 4 Programming 123
SR865A DSP Lock-in Amplifier
Example
CURBUG MAX Set cursor readout to maximum value
CURBUG 1
CURBUG?
Returns the cursor readout mode i
FCRW(?) { LIne | NARrow | WIde | i }
The FCRW i command sets the cursor width to line (i=0), narrow (i=1) or wide (i=2).
This command is the same as pressing in the horizontal scale palette.
Example
FCRW NAR Set the cursor to narrow
FCRW 1
FCRW?
Returns the cursor width i
SCRY? [ DAT1 | DAT2 | DAT3 | DAT4 | STATus | j ]
The SCRY? j query returns the strip chart cursor value of data channel j.
The value of j (0 – 3) corresponds to the DAT1 (green), DAT2 (blue), DAT3 (yellow) and
DAT4
(orange) data channels. Querying
SCRY? STAT
(j=4) returns 0 if there is no
overload or unlock at the cursor positon. The cursor is only available when the strip chart
is paused.
The status response encodes three distinct sources that cause the violet error mark to
appear at the bottom of the strip chart display:
Bit Weight Definition
0 1 Timebase error
1 2 External reference unlock
2 4 Signal overload
3 8 Sync filter error
Example
SCRY? DAT2 Returns the cursor value of data channel 2 (blue)
SCRY? STATUS
Returns the error status for the current cursor position
CURDATTIM?
The CURDATTIM? query returns the strip chart cursor horizontal date and time as a
string. This string is in the format
28Apr14,14:25:35.96
In this example, the date is 28 April 2014, and the time is 14:25:35.96 (2:25 PM).
Performing the
CURDATTIM? query when the display is not paused generates a
parameter range error.