CALCulate is the root command, LIMit is a second level command, FAIL?, LOWer and UPPer are third level commands and DATA, DATA?, STATe and STATe? are fourth level commands.

Command Separator A colon (:) always separates one command from the next lower level command, such as CALCulate:LIMit:FAIL? Colons separate the root command from the second level command (CALCulate:LIMit) and the second level from the third level (LIMit:FAIL?).

Abbreviated Commands

Implied Commands

Parameters

The command syntax shows most commands as a mixture of upper and lower case letters. The upper case letters indicate the abbreviated spelling for the command. For shorter program lines, send the abbreviated form. For better program readability, you may send the entire command. The instrument will accept either the abbreviated form or the entire command.

For example, if the command syntax shows CALCulate, then CALC and CALCULATE are both acceptable forms. Other forms of CALCulate, such as CALCU or CALCUL will generate an error. Additionally, SCPI commands are case insensitive. Therefore, you may use upper or lower case letters and commands of the form CALCULATE, calculate, and CaLcUlAtE are all acceptable.

Implied commands are those which appear in square brackets ([ ]) in the command syntax. (Note that the brackets are not part of the command; do not send them to the instrument.) Suppose you send a second level command but do not send the preceding implied command. In this case, the instrument assumes you intend to use the implied command and it responds as if you had sent it. Examine the partial SENSe subsystem shown below:

[SENSe:]

VOLTage[:DC]:RANGe <range>MINMAX VOLTage[:DC]:RANGe? [MINMAX]

The root command SENSe is an implied command and so is the third level command DC. For example, to set the digitizer's DC voltage range to MAX, you can send one of the following three command statements:

SENS:VOLT:DC:RANG MAX

VOLT:DC:RANG MAX

VOLT:RANG MAX

ParameterTypes. The following table contains explanations and examples of parameter types you might see later in this chapter.

Type

Explanations and Examples

 

 

Boolean

Represents a single binary condition that is either true or

 

false. (ON, OFF, 1.0). Any non-zero value is considered

 

true.

 

 

46 Digitizers Command Reference

Chapter 3

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Agilent Technologies E1564A, E1563A Abbreviated Commands Implied Commands Parameters, Digitizers Command Reference Chapter
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E1563A, E1564A specifications

Agilent Technologies, a prominent player in the field of electronic measurement, offers a range of products designed for various testing applications. Among their notable offerings are the E1564A and E1563A modules. Both models are designed for high-performance testing and measurement, catering particularly to the needs of engineers and technicians in the telecommunications and wireless industries.

The Agilent E1564A is a high-speed data and synchronization generation module, specifically tailored for advanced signal analysis. One of its primary features is its ability to provide a wide range of modulation types, including QPSK and 16QAM, which are essential for testing modern communication systems. The module also boasts a flexible output that supports multiple channels, making it efficient for testing complex systems where multiple data streams are present. Its exceptional performance in generating accurate waveforms enables engineers to perform thorough tests and validations on their devices.

On the other hand, the E1563A module is predominantly focused on protocol analysis and provides engineers with insights into the behavior of their communication systems. This module features comprehensive support for various communication protocols, making it invaluable when debugging and validating designs. Engineers can utilize the extensive measurement capabilities of the E1563A to analyze data integrity and system performance, ensuring that their products meet required specifications.

Both modules leverage advanced technologies from Agilent, ensuring high accuracy and reliability in measurements. They are equipped with powerful processing capabilities that allow for real-time data analysis, a critical aspect when working with high-frequency signals. Furthermore, these modules are designed for seamless integration into Agilent’s test and measurement platforms, enhancing usability and facilitating complex testing scenarios.

In summary, the Agilent E1564A and E1563A modules represent cutting-edge solutions for engineers involved in testing and validating communication systems. With their robust features, including support for various modulation schemes and protocol analysis, these modules enable efficient and accurate measurements. The commitment to quality and precision from Agilent Technologies continues to make these devices essential tools in the industry, helping engineers push the boundaries of innovation in telecommunications.
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