Chapter 5 Remote Interface Reference

SCPI Command Summary

Rules for Using scan_list and ch_list Parameters

Before you can initiate a scan, you must set up a scan list to include all desired multiplexer or digital channels. Channels which are not in the list are skipped during the scan. The instrument automatically scans the list of channels in ascending order from slot 100 through slot 300.

•Commands which accept a scan_list parameter will reprogram the scan list each time you send the command to the instrument. The scan_list parameter is never an optional parameter.

•Commands which accept an optional ch_list parameter do not reprogram the scan list when you send the command to the instrument. If you omit the ch_list parameter, the command will be applied to the channels in the active scan list.

•If a command specifies an illegal operation on a given channel, the instrument will generate an error for each channel which is illegal and the command will not be performed on any of the channels. For example, the following command will generate an error on channel 121 on the 34901A module since this channel is for current measurements only.

CONFigure:VOLTage:DC (@101,121)

•If you select a range of channels in a command which specifies an illegal operation on one or more channels, the instrument will skip the illegal channels and will not generate an error. For example, the following command will not generate an error on the 34901A module even though channels 121 and 122 are for current measurements only.

CONFigure:VOLTage:DC (@101:220)

However, if the illegal channel is one of the end points in the range, the instrument will generate an error. For example, the following command will generate an error on the 34901A module since channel 122 is for current measurements only.

CONFigure:VOLTage:DC (@101:122)

182

Page 183 Page 185
Page 184
Image 184
Agilent Technologies 34970A manual Rules for Using scanlist and chlist Parameters
Page 183 Page 185

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.
Top Page Image Contents