Agilent Technologies A.18.00 Manuel d'utilisateur télécharger pdf (Page 72)

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S:\agilent\8920\8920b\PRGGUIDE\BOOK\CHAPTERS\guidelin.fb

Chapter 3, GPIB Command Guidelines

Guidelines for Operation

Command Punctuation

NOTE: Programming Language Considerations. The punctuation rules for the Test Set’s

GPIB commands conform to the IEEE 488.2 standard. It is possible that some

programming languages used on external controllers may not accept some of the

punctuation requirements. It is therefore necessary that the equivalent form of the correct

punctuation, as defined by the language, be used for GPIB operation. Improper

punctuation will results in HP-IB Error: -102 Syntax Error.

Using Quotes for String Entries

Quotation marks ’ and " are used to select a non-numeric field setting. The value is

entered into the command line as a quoted alphanumeric string.

Quotes are used with all Underlined (toggling) and One-of-many (menu choice)

fields. (See “Changing A Field’s Setting” in chapter 1 of the User’s Guide for field

type descriptions.)

For example, to set the RF Generator’s

Output Port field to Dupl (duplex), the

Dupl would be entered into the command string.

RFG:OUTP ’Dupl’

RFG:OUTP "Dupl"

Using Spaces

When changing a field’s setting, a space must always precede the setting value in

the command string, regardless of the field type (command<space>value).

RFG:FREQ<space>850MHZ

RFG:ATT<space>’OFF’

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 580 581

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Agilent Technologies A.18.00 Manuel d'utilisateur Page 72

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