External Input Overview. Quantum Composers 9520 Series

*IDN?<cr><lf>

SCPI Command Format

SCPI Command Keywords

The commands are shown as a mixture of upper and lower case letters. The upper case letters indicate the abbreviated spelling for the command. You may send either the abbreviated version or the entire keyword. Upper and/or lower case characters are acceptable.

For example, if the command keyword is given as POLarity, then POL and

POLARITY are both acceptable forms; truncated forms such as POLAR will generate an error; polarity, pol, and PolAriTy are all acceptable as the pulse generator is not case sensitive.

SCPI Command Format

SCPI commands control and set instrument specific functions such as setting the pulse width, delay and period. SCPI commands have a hierarchical structure composed of functional elements that include a header or keywords separated with a colon, data parameters, and terminators. For example:

SCPI Format

:PULSE1:STATE ON<cr><lf>

:PULSe1:WIDTh 0.000120<cr><lf>

:PULSe:POL NORMal<cr><lf>

Any parameter may be queried by sending the command with a question mark appended. For example:

- QUERY FORMAT

:PULSE1:STATE?<cr><lf>

Will return: 1<cr><lf>

:PULSE1:WIDT?<cr><lf>

Will return: 0.000120000<cr><lf>

:PULSE1:POL?<cr><lf>

Will return: NORM<cr><lf>

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.

If more than one parameter is used, you must separate subsequent parameters with a comma.

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