2 - Introduction to Programming

Header In the command descriptions in Chapter 3 of this manual, headers are emphasized with Convention boldface type. The proper short form is shown in upper-case letters, such as DELay.

Header If a command has more than one header, you must separate them with a colon

Separator (VOLT:PROT OUTPut:RELay:POLarity).

Optional The use of some headers is optional. Optional headers are shown in brackets, such as

Headers OUTPut[:STATe] ON. As previously explained under "The Effect of Optional Headers", if you combine two or more message units into a compound message, you may need to enter the optional header.

Query Indicator

Following a header with a question mark turns it into a query (VOLTage?, VOLTage:PROTection?). If a query contains a parameter, place the query indicator at the end of the last header (VOLTage:PROTection? MAX).

Message Unit Separator

When two or more message units are combined into a compound message, separate the units with a semicolon (STATus:OPERation?;QUEStionable?).

Root Specifier

When it precedes the first header of a message unit, the colon becomes the root specifier. It tells the command parser that this is the root or the top node of the command tree. Note the difference between root specifiers and header separators in the following examples:

OUTPut:PROTection:DELay .1 :OUTPut:PROTection:DELay .1 OUTPut:PROTection:DELay .1;:VOLTage 12.5

All colons are header separators Only the first colon is a root specifier Only the third colon is a root specifier

NOTE: You do not have to precede root-level commands with a colon; there is an implied colon in front of every root-level command.

Message Terminator

A terminator informs SCPI that it has reached the end of a message. Three permitted messages terminators are:

υnewline (<NL>), which is ASCII decimal 10 or hex 0A.

υend or identify (<END>)

υboth of the above (<NL><END>).

In the examples of this guide, there is an assumed message terminator at the end of each message. If the terminator needs to be shown, it is indicated as <NL> regardless of the actual terminator character.

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Agilent Technologies 6811B, 6834B, 6814B, 6843A Query Indicator, Message Unit Separator, Root Specifier, Message Terminator
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6812B, 6811B, 6813B, 6834B, 6843A specifications

Agilent Technologies, a leader in electronic test and measurement equipment, offers a range of powerful signal sources including the 6843A, 6834B, 6814B, 6813B, and 6811B models. These instruments are designed to support various applications in research, development, and manufacturing, providing precise signal generation capabilities.

The Agilent 6843A is a versatile signal generator known for its exceptional frequency range and modulation capabilities. It supports an extensive bandwidth, making it ideal for applications that require high-frequency signal generation. With its superior phase noise performance, the 6843A is an excellent choice for radar, wireless communications, and electronic warfare applications. The instrument features an intuitive user interface, allowing engineers to set parameters quickly and efficiently.

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The 6814B model stands out for its dual-channel capabilities, allowing users to generate simultaneous signals for testing multiple components or systems. This feature significantly enhances testing efficiency and flexibility for engineers. With built-in arbitrary waveform functionality, users can create custom waveforms, making the 6814B suitable for a wide range of applications including device characterization and signal processing research.

For those seeking a more compact solution, the Agilent 6813B provides essential signal generation features without compromising on performance. It is designed for a variety of applications across telecommunications and consumer electronics, featuring a straightforward interface and robust performance metrics.

Lastly, the 6811B is an entry-level yet capable model that supports a broad spectrum of testing needs. Perfect for educational and laboratory environments, it provides essential functionalities required for effective signal generation and analysis.

Overall, Agilent Technologies' 6843A, 6834B, 6814B, 6813B, and 6811B signal generators offer an array of features and technologies that cater to various application needs. Their precision, reliability, and user-oriented designs position them as invaluable assets in any testing environment, ensuring engineers can carry out their work with confidence and accuracy.
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