Agilent Technologies 6812B SCPI Data Formats, Numerical Data Formats, Suffixes and Multipliers

Introduction to Programming - 2

SCPI Data Formats

All data programmed to or returned from the ac source is ASCII. The data may be numerical or character string.

Numerical Data Formats

Symbol

<NR1>

<NR2>

<NR3>

<Bool>

<Nrf>

<Nrf+>

<Bool>

Data Form

Talking Formats

Digits with an implied decimal point assumed at the right of the least-significant digit. Examples: 273

Digits with an explicit decimal point. Example: .0273

Digits with an explicit decimal point and an exponent. Example: 2.73E+2

Boolean Data. Example: 0 1 or OFF ON (0 = OFF; 1 = ON)

Listening Formats

Extended format that includes <NR1>, <NR2> and <NR3>. Examples: 273273. 2.73E2

Expanded decimal format that includes <NRf> and MINMAX. Examples: 273 73.2 .73E2 MAX. MIN and MAX are the minimum and maximum limit values that are implicit in the range specification for the parameter.

Boolean Data. Example: 0 1

Suffixes and Multipliers

Class	Suffix	Unit	Unit with Multiplier
Current	A	ampere	MA (milliampere)
Amplitude	V	volt	MV (millivolt)
Time	S	second	MS (millisecond)
Frequency	HZ	Hertz	KHZ (kilohertz)

	Common Multipliers
1E3		K	kilo
1E-3		M	milli
1E-6		U	micro

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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