Chapter 5 Remote Interface Reference

Simplified Programming Overview

Simplified Programming Overview

This section gives an overview of the basic techniques used to program the 34970A over the remote interface. This section is only an overview and does not give all of the details you will need to write your own application programs. Refer to the remainder of this chapter and also the application examples in chapter 7 for more details and examples. You may also want to refer to the documentation provided with your programming application for details on outputting command strings and entering data.

The MEASure? and CONFigure commands provide the most straight- forward method to program the instrument for scanning. You can select the measurement function, range, and resolution all in one command. All other measurement parameters are set to their default values as shown in the table below.

Measurement Parameter

MEASure? and CONFigure Setting

 

 

 

 

Integration Time

1 PLC

 

 

Input Resistance

10

M(fixed for all DCV ranges)

 

 

AC Filter

20

Hz (medium filter)

 

5

Scan List

Redefined when command executed

 

 

 

Scan Interval Source

Immediate

 

 

Scan Count

1 Scan Sweep

 

 

Channel Delay

Automatic Delay

 

 

 

 

 

 

 

When you configure a channel using MEASure? or CONFigure, it is important to note that the previous configuration on that channel

is lost. For example, assume that a channel is configured for dc voltage measurements. When you reconfigure that channel for thermocouple measurements, the previous range, resolution, and other measurement attributes are set to their default values.

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Agilent Technologies 34970A manual Simplified Programming Overview

34970A specifications

Agilent Technologies 34970A is a versatile data acquisition and measurement system that has gained popularity in various industries, including research and development, manufacturing, and education. The primary purpose of the 34970A is to offer an efficient solution for data collection, monitoring, and analysis, which can significantly enhance productivity and accuracy in testing applications.

One of the main features of the 34970A is its modular design, allowing users to customize the system according to their specific measurement needs. The mainframe can accommodate up to three plug-in measurement modules, which can include various types of measurements such as analog, digital, temperature, and frequency. This modularity provides flexibility for users to tailor the system to their requirements, making it highly adaptable to different applications.

Another notable characteristic of the Agilent 34970A is its impressive channel configuration. The system can support up to 120 measurement channels when fully configured, enabling extensive data acquisition without the need for multiple devices. This capability is essential for applications requiring simultaneous monitoring of multiple parameters or locations.

The 34970A utilizes advanced signal processing technologies to ensure high-accuracy measurements. The internal 6.5-digit resolution multimeter provides precise readings, while the device also supports various input types, such as thermocouples and RTDs for temperature measurements. The ability to perform mathematical functions, such as summation and averaging, on the acquired data further enhances its usability.

For data storage and management, the Agilent 34970A features built-in memory for storing up to 20,000 readings. Users can also easily transfer data to a PC through the RS-232 interface or GPIB (IEEE 488) for further analysis and reporting. Additionally, it offers the capability to program automatic data logging and scheduling of measurements, which streamlines the testing process and reduces manual intervention.

In terms of user interface, the 34970A is equipped with a large graphical display that provides clear visualization of measurement data and easy navigation through settings and options. The menu-driven interface makes it accessible for users of all skill levels, simplifying the setup and operation of the device.

Overall, the Agilent Technologies 34970A stands out for its modularity, high channel capacity, advanced measurement technologies, and user-friendly interface. As a reliable and efficient data acquisition system, it is well-suited for a wide range of applications, making it an essential tool for engineers and technicians looking to enhance measurement precision and efficiency.