Exfo FTB-500 Instrukcja Użytkownika Pobierz pdf (Strona 337)

100

101

FTB-500 329

BData Types

The following section provides an overview of the most common data

types that may appear in EXFO’s documentation on commands and

queries. The information is supplied for guidance only.

For more detailed information, please refer to IEEE 488.2 and SCPI

standards.

Data types are divided into two groups: <PROGRAM DATA> for the types

that are used when you want to send messages to a device and

<RESPONSE DATA> for the types that are used when a device sends

responses to the controller.

The data types are presented in graphics often referred to as “railroad

diagrams”. The following example illustrates how to interpret such

diagrams.

<Upper/lower

case alpha>

<Upper/lower

case alpha>

<digit>

Entry

Exit

The reverse arrow indicates that

the item specified in the box can

be repeated several times

The splitting arrow indicates a

choice of items

In circles: literal

items (to be

typed as such)

In boxes: syntactic

items (use the

elements to which

they refer)

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