LeCroy 9400A Manual page 83

Digital oscilloscope
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Thus, the overall command sequence and data structure is the same
as for queries.
Sending a new setup block to the 9400A:
- Host sends the command SETUP<END> to 9400A.
- Host sends the
composed of a
<END>.
data blocks to the 9400A. Each data block is
preamble, the data, an optional postscript and
Here, the setup data cannot be directly
appended
to the setup
command, but must be separated by <END>.
Several
block
formats
are available
for read and write;
they are
distinguished from each other by the preamble. The command COMM FORMAT
selects the format.
Format A: GPIB only, binary format, no checksum.
Preamble:
Data:
#Abb where bb is the number of data values that will be
sent (2 binary bytes).
One binary byte for each 8-bit value, two binary bytes
for each 16-bit value.
Postscript: None.
Format L: GPIB or RS-232-C, ASCII format.
Preamble:
#L<count>,
where <count> is
that will be sent.
Data:
<data>, where <data> are data values in ASCII.
Postscript: None.
the number of data values
<count> and <data> are in the same format but do not necessarily have
the same number of characters. However, <count> is always treated as a
WORD (16 bits), whereas <data> may be chosen as a BYTE (8 bits) or
WORD. The choice of formats (see COMM FORMAT command) is the following:
HEX:
UNSIGNED FIXED:
UNSIGNED SHORT:
BYTE (8 bits value)
WORD
xx (2 hex digits)
xxxx
nnn (3 decimal digits)
nnnnn
(16 bits value)
(4 hex digits)
(5 decimal digits)
,n (I to 3 decimal digits) ,nnnnn (I to 5 decimal
digits)
7-9
Remote Operations

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