Format[:data – Инструкция по эксплуатации EXFO FTB-500 (Window XP)

Страница 268

Advertising
background image

Справка по командам IEEE 488.2 и специальным командам

256

FTB-500

Специальные команды

In ASCii format, the numeric data is transferred to
ASCii bytes in <NR1 NUMERIC RESPONSE
DATA>, <NR2 NUMERIC RESPONSE DATA> or
<NR3 NUMERIC RESPONSE DATA>
representation, as appropriate.

In PACKed format, data is transferred to a
<DEFINITE BLOCK RESPONSE DATA>, in a
manner specified in the device documentation.

³

Length:

The program data syntax for <Length> is defined
as a <DECIMAL NUMERIC PROGRAM DATA>
element.

When ASCii data format is selected, the optional
<Length> parameter specifies the number of
significant digits to be returned. A <Length> value
of zero indicates that the device selects the
number of significant digits to be returned. When
a <Length> of zero has been specified, the
FORMat[:DATA]? query returns zero as its
second parameter.

When the PACKed data format is selected, the
optional parameter <Length> it not used.

Example(s)

FORM ASC
FORM ASC,6
FORM:DATA PACKED

See Also

FORMat[:DATA]?

:FORMat[:DATA]

Advertising