Agilent Technologies E4440A User Manual

356 Chapter 6
Using the STATus System
Using the Status Registers
Using the STATus System
Bit Description
0, 1 These bits are always set to 0.
2 A 1 in this bit position indicates that the SCPI error queue is not empty which means
that it contains at least one error message.
3 A 1 in this bit position indicates that the data questionable summary bit has been set.
The data questionable event register can then be read to determine the specific condition
that caused this bit to be set.
4 A 1 in this bit position indicates that the instrument has data ready in the output queue.
There are no lower status groups that provide input to this bit.
5 A 1 in this bit position indicates that the standard event summary bit has been set. The
standard event status register can then be read to determine the specific event that
caused this bit to be set.
6 A 1 in this bit position indicates that the instrument has at least one reason to report a
status change. This bit is also called the master summary status bit (MSS).
7 A 1 in this bit position indicates that the standard operation summary bit has been set.
The standard operation event register can then be read to determine the specific
condition that caused this bit to be set.

Agilent Technologies E4440A Specifications

General

Brand	Agilent Technologies
Model	E4440A
Category	Measuring Instruments
Language	English

Summary

2. Instrument Functions: A - L

2.1 AMPLITUDE / Y Scale

Controls display of amplitude data, including reference level and scaling.

2.7 FREQUENCY / Channel

2.8 Input/Output

3. Instrument Functions: M - O

3.1 Marker

Controls marker functions for measuring trace data points.

3.4 MEASURE (Spectrum Analysis Mode)

Provides access to measurement setup and configuration options.

3.6 MODE and Mode Setup

4. Instrument Functions: P - Z

4.1 Peak Search

Locates and analyzes peaks on the trace based on defined parameters.

4.2 Preset

4.5 Save

Saves analyzer states, traces, and screen data to storage.

4.7 SPAN / X Scale

Adjusts the displayed frequency range and X-axis scale.

4.8 SWEEP

Controls sweep time and mode for signal acquisition.

4.9 System

5. Programming Fundamentals

SCPI Language Basics

Introduces the SCPI programming language, keywords, syntax, and parameters.

Improving Measurement Speed

Provides techniques to optimize program execution and measurement speed.

Programming Command Compatibility Across Model Numbers and Across Modes

Using the LAN to Control the Instrument

Explains how to control the instrument using LAN connectivity.

Programming in C Using the VTL

6. Using the STATus System

Using the Status Registers

Common Using the STATus System IEEE Commands

STATus Subsystem

Explains the SCPI-defined instrument-status reporting structures and registers.

7. Menu Maps: Spectrum Analysis

FREQUENCY Channel Key (See page 143)

Input/Output Key (See page 151)

Marker Key (See page 167)

Details the menu structure for controlling marker functions on the trace.

Marker --> Key (See page 185)

Marker Fctn Key (See page 179)

MODE Key (See page 195)

Peak Search Key (See page 203)

Shows the menu flow for performing peak searches on trace data.

Preset Key (See page 211)

Print Setup Key (See page 215)

SPAN X Scale Key (See page 227)

Details the menu structure for adjusting span and X-axis scale.

Sweep Key (See page 231)

Shows the menu paths for controlling sweep time and mode.

System Key, 1 of 4 (See page 241)

Trace/View Key (See page 277)

Trig Key (See page 281)

Details the menu paths for setting trigger conditions for sweeps and measurements.