LAMBDA DG-4 & 5 PLUS/USB OPERATION MANUAL – REV.
79
Command Tx/
-Rx
Ver.
Byte
Count
Byte
Offset
Value
Alt-
key-
pad
entry
Ctrl-
char
ASCII
def./-
char.
Description
Dec. Hex. Binary
Get Ring
Buffer
Contents
Tx USB
2
0
245 F5 1111 0101 0245
Get the contents of the ring buffer
Rx All
3-19
0
245 F5 1111 0101
Echoed command byte
1-16 0-15 00-0F 0000 0000
-
0000 1111
Filter 0-15 * # of filters
2-17 240 F0 1111 0000
End of filters list marker
2-18 13 0D 0000 1101
<CR>
Completion indicator
Get
Specified
Filter’s
Galvo A
DAC Value
Tx USB
2
0
244 F4 1111 0100 0244
Command byte
1 0-15 00-0F 0000 0000
-
0000 1111
0000
-
0015
Specified filter position
Rx USB
5
0
Echoed command sequence
2
0
-
4095
0000
-
FF0F
0000 0000
0000 0000
-
1111 1111
0000 1111
Galvo A DAC value encoded into a
16-bit “unsigned short” (2 bytes),
Little Endian
4
13 0D 0000 1101
<CR>
Completion indicator
Get
Specified
Filter’s
Galvo B
DAC Value
Tx USB
4
0
244 F4 1111 0100 0244
Command byte
1
128
-
143
80-8F 1000 0000
-
1000 1111
0128
-
0143
Specified filter position
Rx USB
5
0
Echoed command sequence
2
0
-
4095
0000
-
FF0F
0000 0000
0000 0000
-
1111 1111
0000 1111
Galvo A DAC value encoded into a
16-bit “unsigned short” (2 bytes),
Little Endian
4
13 0D 0000 1101
<CR>
Completion indicator
Get
Galvo DAC
Values for
Nominal
Filter
Positions
Tx USB
2
0
244 F4 1111 0100 0244
Command byte
1
63 3F 0011 1111 0063
Galvo A or
191 BF 1011 1111 0191
Galvo B
Rx USB
35
0
Echoed command sequence
0
-
4095
0000
-
FF0F
0000 0000
0000 0000
-
1111 1111
0000 1111
0000+
0000
-
0255+
0015
Filter galvo DAC value encoded into
a 16-bit “unsigned short” (2 bytes),
Little Endian
2
DAC value
Nominal filter 0
4
DAC value
Nominal filter 1
Summary of Contents for Lambda DG-4Plus/USB
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