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Chapter 4
CDSP? 1
CDSP? DAT2
CGRF(?) [ DAT1 | DAT2 | DAT3 | DAT4 | j ] { , OFF | ON | i }
The
CGRF j, i
The value of j (0–3) corresponds to the
DAT4
Example
CGRF DAT2, ON
CGRF 1, 1
CGRF 0, OFF
CGRF? 1
CGRF? DAT2
GETSCREEN?
The
GETSCREEN?
BMP file format. This query cannot be executed over the RS-232 interface. The file
image is the same as is written to a USB memory stick upon pressing the [Screen Shot]
key.
After sending
Status Byte query, either by serial poll, or through the VISA Read STB function—but not
with the
seconds before MAV is set. Once the MAV bit is set in the Status Byte, the user may then
read the binary block data. The binary block is in the following format:
Where "#" is the hash character (character code 35), "n" is a single digit specifying the
number of digits to follow in the block length count; "ccccc" is the n–digit integer size
of the binary block to follow, and "xxxxxxx" is the ccccc–byte binary image file itself.
This binary image should be saved as a .BMP format file.
Example
GETSCREEN?
The SR865A responds with
corresponding to a 35219-byte .BMP file image (the "
Returns the parameter index assigned to data channel 2 (blue)
command turns the strip chart graph of data channel j off (i=0) or on (i=1).
(orange) data channels.
Turn graphing on for data channel 2 (blue)
Turn graphing off for data channel 1 (green)
Returns data channel 2 (blue) graphing state i
query creates and returns a screen image as a binary block of data in
GETSCREEN?
STB?
query—until the MAV bit becomes set. Note that it may take several
#ncccccxxxxxxx
Request a screen capture file
#535219xxxxxxx
(green),
DAT1
, the user's remote program should repeatedly perform a
Programming
(blue),
(yellow) and
DAT2
DAT3
xxxxxxx
" data).
SR865A DSP Lock-in Amplifier
119
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