Specifications

Definite Length #<non-zero digit><digit(s)><data byte(s)>
Where the value of <non-zero digit> is 1-9 and
represents the number of <digit(s)>. The value
of <digit(s)> taken as a decimal integer indicates
the number of <data byte(s)> in the block.
Example of sending or receiving 1024 data bytes:
#41024<byte><byte1><byte2><byte3><byte4>¼
¼<byte1021><byte1022><byte1023><byte1024>
OR
Indefinite Length #0<data byte(s)><NL^END>
Examples of sending or receiving 4 data bytes:
#0<byte><byte><byte><byte><NL^END>
Optional Parameters. Parameters shown within square brackets ([]) are optional
parameters. (Note that the brackets are not part of the command and should not be
sent to the instrument.) If a value for an optional parameter is no specified, the
instrument chooses a default value. For example, consider the FORMAT:DATA
<type>[,<length>] command. If the command is sent without specifying <length>, a
default value for <length> will be selected depending on the <type> of format
specified. For example:
FORMAT:DATA ASC will set [,<length>] to the default for ASC of 7
FORMAT:DATA REAL will set [,<length>] to the default for REAL of 32
FORMAT:DATA REAL, 64 will set [,<length>] to 64
Be sure to place a space between the command and the first parameter.
Linking
Commands
Linking commands is used to send more than one complete command in a single
command statement.
Linking IEEE-488.2 Common Commands with SCPI Commands. Use a
semicolon between the commands. For example:
*RST;OUTP:TTLT3 ON or TRIG:SOUR IMM;*TRG
Linking Multiple complete SCPI Commands. Use both a semicolon and a colon
between the commands. For example:
OUTP:TTLT2 ON;:TRIG:SOUR EXT
The semicolon as well as separating commands tells the SCPI parser to expect the
command keyword following the semicolon to be at the same hierarchical level (and
part of the same command branch) as the keyword preceding the semicolon. The
colon immediately following the semicolon tells the SCPI parser to reset the
expected hierarchical level to Root.
VT1419A Command Reference
Chapter 6 181
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