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Sequoia Series 21

2.5 SCPI Data Formats

All data programmed to or returned from the power source is in ASCII. The data type may be numerical

or character string.

2.5.1 Numerical Data Formats

Symbol

Data Form

Talking Formats

<NR1>

Digits with an implied decimal point assumed at the right of the

least-significant digit.

Example: 273

<NR2>

Digits with an explicit decimal point. Example:.0273

<NR3>

Digits with an explicit decimal point and an exponent.

Example: 2.73E+2

<Bool>

Boolean Data.

Example: 0 | 1 or ON | OFF

Listening Formats

<Nrf>

Extended format that includes <NR1>, <NR2> and <NR3>.

Examples: 273 273.0 2.73E2

<Nrf+>

Expanded decimal format that includes <Nrf> and MIN, MAX.

Examples: 273, 273.0, 2.73E2, MAX.

MIN and MAX are the minimum and maximum limit values that

are implicit in the range specification for the parameter.

<Bool>

Boolean Data

Example: 0 | 1

2.5.2 Character Data

Character strings returned by query statements may take either of the following forms, depending on

the length of the returned string:

<CRD> Character Response Data. Permits the return of character strings.

<AARD> Arbitrary ASCII Response Data. Permits the return of undelimited 7-bit ASCII.

This data type has an implied message terminator.

<SRD> String Response Data. Returns string parameters enclosed in double quotes.

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