Will return
1
<cr><lf>
:PULSE1:WIDTH?
<cr><lf>
Will return
0.000120000 <cr><lf>
:PULSE1:POL?
<cr><lf>
Will return
NORM <cr><lf>
9.3.5
SCPI Keyword Separator
A colon (:) must always separate one keyword from the next lower -level keyword. A space must be used to
separate the keyword header from the first parameter.
9.3.6
SCPI Optional Keywords
Optional keywords and/or parameters appear in squa re brackets ( [ ] ) in the command syntax. Note that the
brackets are not part of the command and should not be sent to the pulse generator. When sending a
second level key word without the optional keyword, the pulse generator assumes that you intend to u se the
optional keyword and responds as if it had been sent.
SCPI Specific and Implied Channel
Some commands, such as PULSe, allow specifying a channel with an optional numeric keyword suffix.
The suffix will be shown in square brackets [ 1 / 2 ]. The brackets are not part of command and are not to be
sent to the pulse generator. The numeric parameters correspond to the following channels: 0 = T 0, 1 = ChA, 2
= ChB, etc. Only one channel may be specified at a time.
If you do not specify the channel number, the implied channel is specified by the :INSTrument:SELect
command or the last referenced channel.
After power-up or reset (*RST) the instrument will default to channel #1.
9.3.7
SCPI Parameter Types
The following parameter types are used:
<Numeric Value>
Accepts all commonly used decimal representation of numbers
including optional signs, decimal points, and scientific notation:
For Example: 123, 123e2, -123, -1.23e2, .123, 1.23e-2,
1.2300E-01
<Boolean Value>
Represents a single binary condition that is either true or false. True
is represented by a 1 or ON; false is represented by a 0 or OFF.
Queries return 1 or 0.
<Identifier>
Selects from a finite number of predefined strings.
9.3.8
Error Codes
The unit responds to all commands with either:
ok <cr><lf> or ?
‟n „<cr><lf>
Where
„n‟ is one of the following error codes:
1.
Incorrect prefix, i.e. no colon or * to start command.
2.
Missing command keyword.
