Agilent Technologies 8753ET Guía de usuario descargar pdf (Pagina 337)

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Chapter 4 4-3

Reading Analyzer Data

Output Syntax

The following three types of data are transmitted by the analyzer in ASCII format:

• response to query

• certain output commands

• ASCII floating-point (FORM4) array transfers

Marker-output commands and queried commands are output in ASCII format only,

meaning that each character and each digit is transmitted as a separate byte, leaving the

receiving computer to reconstruct the numbers and strings. Numbers are transmitted as

24-character strings, consisting of:

Figure 4-1 FORM4 (ASCII) Data-Transfer Character String

When multiple numbers are sent, the numbers are separated by commas. When number

pairs are sent, the numbers are separated by a comma and terminated with a

line feed, <

Sign ‘−’ for negative, blank for positive.

3 digits Digits to the left of the decimal point.

Decimal Point Standard decimal point.

15 digits Digits to the right of the decimal point.

E Exponent notation.

Sign (in exponent) ‘−’ for negative, ‘+’ for positive.

Exponent Two digits for the exponent.

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