Chapter 5 Remote Interface Reference

Scanning Overview

CALCulate:AVERage:AVERage? [(@<ch_list>)]

Calculate the mathematical average of all readings taken on each of the specified channels since the start of the scan. Each channel must be a multiplexer channel that has been configured to be part of the scan list. If no data is available for the specified channels, “0” is returned. Returns a number in the form “+2.61920000E+01”.

CALCulate:AVERage:PTPeak? [(@<ch_list>)]

Calculate the peak-to-peak value of all readings taken on each of the specified channel since the start of the scan (the difference between the maximum and minimum reading). Each channel must be a multiplexer channel that has been configured to be part of the scan list. If no data is available for the specified channels, “0” is returned. Returns a number in the form “+0.00000000E+00”.

CALCulate:AVERage:COUNt? [(@<ch_list>)]

Count the number of readings taken on each of the specified channels since the start of the scan. Each channel must be a multiplexer channel that has been configured to be part of the scan list. Returns a number in the form “+5.00000000E+00”.

CALCulate:AVERage:CLEar [(@<ch_list>)]

Clear all values from the statistics registers for the specified channels. Each channel must be a multiplexer channel that have been configured to be part of the scan list. The minimum, maximum, average, count, and peak-to-peak value are cleared. The values for all scanned channels are also cleared at the start of a new scan.

DATA:LAST? [<num_rdgs>,][(@<channel>)]

Query the last reading taken on the specified channel (one channel only) during the scan. Use the optional num_rdgs parameter to specify the number of readings that you want to retrieve for the specified channel (oldest data first). If you do not specify a value for num_rdgs, only the most recent reading on the specified channel is returned. If you specify more readings than are currently stored in memory, an error is generated.

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Agilent Technologies 34970A manual CALCulateAVERageAVERage? @chlist, CALCulateAVERagePTPeak? @chlist
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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.
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