AD74413R#

Overview#

The AD74413R tool is only available in the runtime mode, along with the MAX14906 tool and the Faults tool. It represents the main interface for the AD74413R chip and it dynamically shows all the channels configured for that device. For each channel we can read/write data through this interface using the libiio library.

The possible functions of an AD74413R channel are as follows: high_z, voltage_out, current_out, voltage_in, current_in_ext, current_in_loop, resistance, digital_input, digital_input_loop, current_in_ext_hart and current_in_loop_hart. For each selected function, one or two channels will be generated within the device context, which will be used for communication with the physical channel.

Only the buffered input channel data can be displayed on the plot, and in the case where a function generates both an input and an output channel, the advanced menu will be associated with the output channel or both channels. The channels generated according to the selected function are as follow:

Function	Input channel	Output channel
high_z	Voltage In
voltage_out	Current In	Voltage Out
current_out	Voltage In	Current Out
voltage_in	Voltage In
current_in_ext	Current In
current_in_loop	Current In	Current Out
resistance	Resistance
digital_input	Voltage In
digital_input_loop	Voltage In	Current Out
current_in_ext_hart	Current In
current_in_loop_hart	Current In	Current Out

Instrument Layout#

https://github.com/analogdevicesinc/scopy/blob/doc_resources/resources/swiot1l/ad74413r.png?raw=true

Run button

The run button will start an acquisition task that will collect data from the active input channels.
The acquisition task will stop upon user intervention.
The data acquisition frequency is set by the user through the settings menu.
All the data will be displayed on the plot.

Single Button

The single button will start a single capture acquisition for all the active input channels. The acquisition task will stop once all the data is acquired and displayed on the plot.

Settings Button

Show/Collapse the menu of general settings.

Advanced Menu Button

Show/Collapse the advanced menu of the channels. Each channel is associated with an advanced menu through which various attributes can be modified.

Menu Area

Here is displayed the menu of general settings, as well as the advanced menu for each channel.

Channels list

The functions assigned to each channel are displayed here. The functions with indices from 1 to 4 are correlated with the physical channels on the board. 5 to 8 indices are correlated with the diagnostic channels. When a channel is selected, it is highlighted.

Plot

Display data from all the active channels. Display the number of units per vertical division. Display the instant value for all channels.

Info button
Print button

Save the plot with the data and channels into a PDF file.

Config button

When pressing the config button, Scopy will switch the SWIOT1L mode to config. The device will briefly disconnect and then reconnect. After that it will automatically display the Config Instrument.

Channel item layout#

Enable button

Enable/Disable a channel. If a channel is disabled, it will no longer be displayed on the plot and data will not be acquired for it.

Channel function name
Menu button

Show/Collapse the advanced menu of the selected channel.

Plot Layout#

Drawing area for the curves

Each input channel has a corresponding curve on the plot.

Curves handle area

Each curve is associated with a handle through which we can position the curves at different values on the Y-axis.

Acquisition status

Display the number of acquired samples and the rate at which these samples are acquired. The samples per second (SPS) is calculated based in the frequency and the number of enabled channels.

If you hover the info button you will find all the necessary information.

General settings layout#

Acquisition settings section

Sampling frequency represents the frequency at which data is acquired. It is a property shared by all the available channels. Available options: 10, 20, 1200, 4800. The plot timespan can be set between 100ms and 10s.

Export section

It provides the possibility to export data corresponding to the activated input channels into a CSV file. You can choose the channels for which data will be exported.

Arrow button

The menu can be detached and reattached by pressing the arrow button in the top right corner.

Tutorial#

A tutorial will automatically start first time the tool is open. It can be restarted from tool Preferences.