Agilent Technologies HP 54601B Especificações descarregar pdf (Página 15)

Header Types

There are three types of headers:

Simple Command headers.

Compound Command headers.

Common Command headers.

Simple Command Header Simple command headers contain a single

mnemonic. AUTOSCALE and DIGITIZE are examples of simple

command headers typically used in this instrument. The syntax is:

Simple command headers must occur at the beginning of a program message;

if not, they must be preceded by a colon.

When program data must be included with the simple command header (for

example, :DIGITIZE CHAN1), white space is added to separate the data from

the header. The syntax is:

Compound Command Header Compound command headers are a

combination of two program mnemonics. The first mnemonic selects the

subsystem, and the second mnemonic selects the function within that

subsystem. The mnemonics within the compound message are separated

by colons. For example:

To execute a single function within a subsystem:

:<subsystem>:<function><separator><program data><terminator>

(For example :CHANNEL1:BWLIMIT ON)

Common Command Header Common command headers control IEEE

488.2 functions within the instrument (such as clear status). Their

syntax is:

*<command header><terminator>

No space or separator is allowed between the asterisk (*) and the command

header. *CLS is an example of a common command header.

Introduction to Programming

Program Message Syntax

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Agilent Technologies HP 54601B Especificações Página 15