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Device Node Tree

This chapter contains reference documentation for the settings and measurement data available on SHFQA Instruments. Whilst Functional Description describes many of these settings in terms of the features available in the LabOne User Interface, this chapter describes them on the device level and provides a hierarchically organized and comprehensive list of device functionality.

Since these settings and data streams may be written and read using the LabOne APIs (Application Programming Interfaces) this chapter is of particular interest to users who would like to perform measurements programmatically via LabVIEW, Python, MATLAB, .NET or C.

Please see:

  • Introduction for an introduction of how the instrument's settings and measurement data are organized hierarchically in the Data Server's so-called "Node Tree".
  • Reference Node Documentation for a reference list of the settings and measurement data available on SHFQA Instruments, organized by branch in the Node Tree.

Introduction

This chapter provides an overview of how an instrument's configuration and output is organized by the Data Server.

All communication with an instrument occurs via the Data Server program the instrument is connected to (see LabOne Software Architecture for an overview of LabOne's software components). Although the instrument's settings are stored locally on the device, it is the Data Server's task to ensure it maintains the values of the current settings and makes these settings (and any subscribed data) available to all its current clients. A client may be the LabOne User Interface or a user's own program implemented using one of the LabOne Application Programming Interfaces, e.g., Python.

The instrument's settings and data are organized by the Data Server in a file-system-like hierarchical structure called the node tree. When an instrument is connected to a Data Server, its device ID becomes a top-level branch in the Data Server's node tree. The features of the instrument are organized as branches underneath the top-level device branch and the individual instrument settings are leaves of these branches.

For example, the auxiliary outputs of the instrument with device ID "dev1000" are located in the tree in the branch:

/dev1000/auxouts/

In turn, each individual auxiliary output channel has its own branch underneath the "AUXOUTS" branch.

/dev1000/auxouts/0/
/dev1000/auxouts/1/
/dev1000/auxouts/2/
/dev1000/auxouts/3/

Whilst the auxiliary outputs and other channels are labelled on the instrument's panels and the User Interface using 1-based indexing, the Data Server's node tree uses 0-based indexing. Individual settings (and data) of an auxiliary output are available as leaves underneath the corresponding channel's branch:

/dev1000/auxouts/0/demodselect
/dev1000/auxouts/0/limitlower
/dev1000/auxouts/0/limitupper
/dev1000/auxouts/0/offset
/dev1000/auxouts/0/outputselect
/dev1000/auxouts/0/preoffset
/dev1000/auxouts/0/scale
/dev1000/auxouts/0/value

These are all individual node paths in the node tree; the lowest-level nodes which represent a single instrument setting or data stream. Whether the node is an instrument setting or data-stream and which type of data it contains or provides is well-defined and documented on a per-node basis in the Reference Node Documentation section in the relevant instrument-specific user manual. The different properties and types are explained in Node Properties and Data Types .

For instrument settings, a Data Server client modifies the node's value by specifying the appropriate path and a value to the Data Server as a (path, value) pair. When an instrument's setting is changed in the LabOne User Interface, the path and the value of the node that was changed are displayed in the Status Bar in the bottom of the Window. This is described in more detail in Exploring the Node Tree.

Module Parameters

LabOne Core Modules, such as the Sweeper, also use a similar tree-like structure to organize their parameters. Please note, however, that module nodes are not visible in the Data Server's node tree; they are local to the instance of the module created in a LabOne client and are not synchronized between clients.

Node Properties and Data Types

A node may have one or more of the following properties:

Property Description
Read Data can be read from the node.
Write Data can be written to the node.
Setting The node corresponds to a writable instrument configuration. The data of these nodes are persisted in snapshots of the instrument and stored in the LabOne XML settings files.
Streaming A node with the read attribute that provides instrument data, typically at a user-configured rate. The data is usually a more complex data type, for example demodulator data is returned as ZIDemodSample. A full list of streaming nodes is available in the Programming Manual in the Chapter Instrument Communication. Their availability depends on the device class (e.g. MF) and the option set installed on the device.
Pipelined If the sequence pipeliner mode is off the value set to the node is applied immediately. Otherwise, it goes to the staging area of the sequence pipeliner instead. Multiple pipelined nodes can be programmed as part of a job definition, that is finalized by writing a one to the relevant commit node.

A node may contain data of the following types:

Integer Integer data.
Double Double precision floating point data.
String A string array.
Integer (enumerated) As for Integer, but the node only allows certain values.
Composite data type For example, ZIDemodSample. These custom data types are structures whose fields contain the instrument output, a timestamp and other relevant instrument settings such as the demodulator oscillator frequency. Documentation of custom data types is available in

Exploring the Node Tree

In the LabOne User Interface

A convenient method to learn which node is responsible for a specific instrument setting is to check the Command Log history in the bottom of the LabOne User Interface. The command in the Status Bar gets updated every time a configuration change is made. Figure 1 shows how the equivalent MATLAB command is displayed after modifying the value of the auxiliary output 1's offset. The format of the LabOne UI's command history can be configured in the Config Tab (MATLAB, Python and .NET are available). The entire history generated in the current UI session can be viewed by clicking the "Show Log" button.

Figure 1: When a device's configuration is modified in the LabOne User Interface, the Status Bar displays the equivalent command to perform the same configuration via a LabOne programming interface. Here, the MATLAB code to modify auxiliary output 1's offset value is provided. When "Show Log" is clicked the entire configuration history is displayed in a new browser tab.

In a LabOne Programming Interface

A list of nodes (under a specific branch) can be requested from the Data Server in an API client using the listNodes command (MATLAB, Python, .NET) or ziAPIListNodes() function (C API). Please see each API's command reference for more help using the listNodes command. To obtain a list of all the nodes that provide data from an instrument at a high rate, so-called streaming nodes, the streamingonly flag can be provided to listNodes. More information on data streaming and streaming nodes is available in the LabOne Programming Manual.

The detailed descriptions of nodes that is provided in Reference Node Documentation is accessible directly in the LabOne MATLAB or Python programming interfaces using the "help" command. The help command is daq.help(path) in Python and ziDAQ('help', path) in MATLAB. The command returns a description of the instrument node including access properties, data type, units and available options. The "help" command also handles wildcards to return a detailed description of all nodes matching the path. An example is provided below.

    daq = zhinst.core.ziDAQServer('localhost', 8004, 6)
    daq.help('/dev1000/auxouts/0/offset')
    # Out:
    # /dev1000/auxouts/0/OFFSET#
    # Add the specified offset voltage to the signal after scaling. Auxiliary Output
    # Value = (Signal+Preoffset)*Scale + Offset
    # Properties: Read, Write, Setting
    # Type: Double
    # Unit: V

Data Server Nodes

The Data Server has nodes in the node tree available under the top-level /zi/ branch. These nodes give information about the version and state of the Data Server the client is connected to. For example, the nodes:

  • /zi/about/version
  • /zi/about/revision

are read-only nodes that contain information about the release version and revision of the Data Server. The nodes under the /zi/devices/ list which devices are connected, discoverable and visible to the Data Server.

The nodes:

  • /zi/config/open
  • /zi/config/port

are settings nodes that can be used to configure which port the Data Server listens to for incoming client connections and whether it may accept connections from clients on hosts other than the localhost.

Nodes that are of particular use to programmers are:

  • /zi/debug/logpath - the location of the Data Server's log in the PC's file system,
  • /zi/debug/level - the current log-level of the Data Server (configurable; has the Write attribute),
  • /zi/debug/log - the last Data Server log entries as a string array.

The Global nodes of the LabOne Data Server are listed in the Instrument Communication chapter of the LabOne Programming Manual

Reference Node Documentation

This section describes all the nodes in the data server’s node tree organized by branch.

CLOCKBASE

/dev..../clockbase

Properties: Read
Type: Double
Unit: Hz

Returns the internal clock frequency of the device.

DIOS

/dev..../dios/n/drive

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

When on (1), the corresponding 8-bit bus is in output mode. When off (0), it is in input mode. Bit 0 corresponds to the least significant byte. For example, the value 1 drives the least significant byte, the value 8 drives the most significant byte.

/dev..../dios/n/input

Properties: Read
Type: Integer (64 bit)
Unit: None

Gives the value of the DIO input for those bytes where drive is disabled.

/dev..../dios/n/interface

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Selects the interface standard to use on the 32-bit DIO interface. A value of 0 means that a 3.3 V CMOS interface is used. A value of 1 means that an LVDS compatible interface is used.

/dev..../dios/n/mode

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Select DIO mode

0 "manual": Enables manual control of the DIO output bits.
16 "qa_result": Sends discriminated readout results to the DIO.
32 "qachan0seq", "qachannel0_sequencer": Enables control of DIO values by the sequencer of QA channel 1.
33 "qachan1seq", "qachannel1_sequencer": Enables control of DIO values by the sequencer of QA channel 2.
34 "qachan2seq", "qachannel2_sequencer": Enables control of DIO values by the sequencer of QA channel 3.
35 "qachan3seq", "qachannel3_sequencer": Enables control of DIO values by the sequencer of QA channel 4.
/dev..../dios/n/output

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Sets the value of the DIO output for those bytes where 'drive' is enabled.

FEATURES

/dev..../features/code

Properties: Write
Type: String
Unit: None

Node providing a mechanism to write feature codes.

/dev..../features/devtype

Properties: Read
Type: String
Unit: None

Returns the device type.

/dev..../features/options

Properties: Read
Type: String
Unit: None

Returns enabled options.

/dev..../features/serial

Properties: Read
Type: String
Unit: None

Device serial number.

QACHANNELS

/dev..../qachannels/n/centerfreq

Properties: Read, Write, Setting
Type: Double
Unit: Hz

The Center Frequency of the analysis band.

/dev..../qachannels/n/generator/auxtriggers/n/channel

Properties: Read, Write, Setting, Pipelined
Type: Integer (enumerated)
Unit: None

Selects the source of the digital Trigger.

0 "chan0trigin0", "channel0_trigger_input0": Channel 1, Trigger Input A.
1 "chan0trigin1", "channel0_trigger_input1": Channel 1, Trigger Input B.
2 "chan1trigin0", "channel1_trigger_input0": Channel 2, Trigger Input A.
3 "chan1trigin1", "channel1_trigger_input1": Channel 2, Trigger Input B.
4 "chan2trigin0", "channel2_trigger_input0": Channel 3, Trigger Input A.
5 "chan2trigin1", "channel2_trigger_input1": Channel 3, Trigger Input B.
6 "chan3trigin0", "channel3_trigger_input0": Channel 4, Trigger Input A.
7 "chan3trigin1", "channel3_trigger_input1": Channel 4, Trigger Input B.
8 "inttrig", "internal_trigger": Internal Trigger
32 "chan0seqtrig0", "channel0_sequencer_trigger0": Channel 1, Sequencer Trigger Output 1.
33 "chan1seqtrig0", "channel1_sequencer_trigger0": Channel 2, Sequencer Trigger Output 1.
34 "chan2seqtrig0", "channel2_sequencer_trigger0": Channel 3, Sequencer Trigger Output 1.
35 "chan3seqtrig0", "channel3_sequencer_trigger0": Channel 4, Sequencer Trigger Output 1.
36 "chan0seqtrig1", "channel0_sequencer_trigger1": Channel 1, Sequencer Trigger Output 2.
37 "chan1seqtrig1", "channel1_sequencer_trigger1": Channel 2, Sequencer Trigger Output 2.
38 "chan2seqtrig1", "channel2_sequencer_trigger1": Channel 3, Sequencer Trigger Output 2.
39 "chan3seqtrig1", "channel3_sequencer_trigger1": Channel 4, Sequencer Trigger Output 2.
128 "chan0rod", "channel0_readout_done": Channel 1, Readout done.
129 "chan1rod", "channel1_readout_done": Channel 2, Readout done.
130 "chan2rod", "channel2_readout_done": Channel 3, Readout done.
131 "chan3rod", "channel3_readout_done": Channel 4, Readout done.
1024 "swtrig0", "software_trigger0": Software Trigger 1.
/dev..../qachannels/n/generator/clearwave

Properties: Read, Write, Pipelined
Type: Integer (64 bit)
Unit: None

Clears all waveforms in each slot and resets their length to 0.

/dev..../qachannels/n/generator/delay

Properties: Read, Write, Setting, Pipelined
Type: Double
Unit: s

Sets a common delay for the start of the playback for all Waveform Memories. The resolution is 2 ns.

/dev..../qachannels/n/generator/dio/valid/index

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Select the DIO bit to use as the VALID signal to indicate that a valid input is available.

/dev..../qachannels/n/generator/dio/valid/polarity

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Polarity of the VALID bit that indicates that a valid input is available.

0 "none": None: VALID bit is ignored.
1 "low": Low: VALID bit must be logical zero.
2 "high": High: VALID bit must be logical high.
3 "both": Both: VALID bit may be logical high or zero.
/dev..../qachannels/n/generator/elf/data

Properties: Write, Pipelined
Type: ZIVectorData
Unit: None

Accepts the data of the sequencer ELF file. If the sequence pipeliner mode is not off, the data of the ELF file goes to the staging area of the sequence pipeliner instead.

/dev..../qachannels/n/generator/elf/length

Properties: Read, Write, Pipelined
Type: Integer (64 bit)
Unit: None

Length of the compiled ELF file.

/dev..../qachannels/n/generator/elf/name

Properties: Read, Pipelined
Type: ZIVectorData
Unit: None

Name of the uploaded ELF file.

/dev..../qachannels/n/generator/elf/progress

Properties: Read, Pipelined
Type: Double
Unit: %

Percentage of the Sequencer program already uploaded to the device.

/dev..../qachannels/n/generator/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enables the Sequencer.

/dev..../qachannels/n/generator/ready

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

The Sequencer has a compiled program and is ready to be enabled.

/dev..../qachannels/n/generator/reset

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Clears the configured Sequencer program and resets the state to not ready.

/dev..../qachannels/n/generator/rtlogger/clear

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Clears the logger data.

/dev..../qachannels/n/generator/rtlogger/data

Properties: Read
Type: ZIVectorData
Unit: None

Vector node with the logged events.

/dev..../qachannels/n/generator/rtlogger/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Activates the Real-time Logger.

/dev..../qachannels/n/generator/rtlogger/input

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Select input data of logger.

0 "dio": DIO interface will be used as input.
1 "zsync": ZSync interface will be used as input.
/dev..../qachannels/n/generator/rtlogger/mode

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Selects the operation mode.

0 "normal": Normal: Logger starts with the AWG and overwrites old values as soon as the memory limit of 1024 entries is reached.
1 "timestamp": Timestamp-triggered: Logger starts with the AWG, waits for the first valid trigger, and only starts recording data after the time specified by the starttimestamp. Recording stops as soon as the memory limit of 1024 entries is reached.
/dev..../qachannels/n/generator/rtlogger/starttimestamp

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Timestamp at which to start logging for timestamp-triggered mode.

/dev..../qachannels/n/generator/rtlogger/status

Properties: Read
Type: Integer (enumerated)
Unit: None

Operation state.

0 "idle": Idle: Logger is not running.
1 "normal": Normal: Logger is running in normal mode.
2 "ts_wait": Wait for timestamp: Logger is in timestamp-triggered mode and waits for start timestamp.
3 "ts_active": Active: Logger is in timestamp-triggered mode and logging.
4 "ts_full": Log Full: Logger is in timestamp-triggered mode and has stopped logging because log is full.
/dev..../qachannels/n/generator/rtlogger/timebase

Properties: Read
Type: Double
Unit: s

Minimal time difference between two timestamps. The value matches the AWG sequencer execution rate (4 ns).

/dev..../qachannels/n/generator/sequencer/assembly

Properties: Read
Type: ZIVectorData
Unit: None

Displays the current sequence program in compiled form. Every line corresponds to one hardware instruction.

/dev..../qachannels/n/generator/sequencer/memoryusage

Properties: Read
Type: Double
Unit: None

Size of the current Sequencer program relative to the available instruction memory of 16 kInstructions (16'384 instructions).

/dev..../qachannels/n/generator/sequencer/program

Properties: Read
Type: ZIVectorData
Unit: None

Displays the source code of the current Sequencer program.

/dev..../qachannels/n/generator/sequencer/status

Properties: Read
Type: Integer (64 bit)
Unit: None

Status of the Sequencer on the instrument. Bit 0: Sequencer is running; Bit 1: reserved; Bit 2: Sequencer is waiting for a trigger to arrive; Bit 3: Sequencer has detected an error; Bit 4: sequencer is waiting for synchronization with other channels.

/dev..../qachannels/n/generator/sequencer/triggered

Properties: Read
Type: Integer (64 bit)
Unit: None

When at value 1, indicates that the Sequencer has been triggered.

/dev..../qachannels/n/generator/single

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Puts the Sequencer into single-shot mode.

/dev..../qachannels/n/generator/userregs/n

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Integer user register value. The sequencer has read and write access to the user register values during runtime.

/dev..../qachannels/n/generator/waveforms/n/length

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Length of the uploaded waveform in number of complex samples.

/dev..../qachannels/n/generator/waveforms/n/wave

Properties: Read, Write, Pipelined
Type: ZIVectorData
Unit: None

Contains the generators waveforms as a vector of complex samples

/dev..../qachannels/n/input/adcoverrangecount

Properties: Read
Type: Integer (64 bit)
Unit: None

Indicates the number of times the analog-to-digital converter (ADC) of the Signal Input was in an overrange condition within intervals of 200 ms. Note that this condition always occurs together with the condition of the "overrangecount" node. The overrange condition can cause potential damage of the Signal Input processing electronics, in particular the ADC units.

/dev..../qachannels/n/input/digitalmixer/centerfreq

Properties: Read
Type: Double
Unit: Hz

The Center Frequency of the digital mixer for the Signal Input.

/dev..../qachannels/n/input/on

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enables the Signal Input.

/dev..../qachannels/n/input/overrangecount

Properties: Read
Type: Integer (64 bit)
Unit: None

Indicates the number of times the Signal Input was in an overrange condition within intervals of 200 ms. The overrange condition can cause potential damage of the Signal Input processing electronics of the instrument.

/dev..../qachannels/n/input/range

Properties: Read, Write, Setting
Type: Double
Unit: dBm

Sets the maximal Range of the Signal Input power. The instrument selects the closest available Range with a resolution of 5 dBm.

/dev..../qachannels/n/input/rflfpath

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Switch between RF and LF path for the QA channel input.

0 "lf": LF path is used.
1 "rf": RF path is used.
/dev..../qachannels/n/markers/n/source

Properties: Read, Write, Setting, Pipelined
Type: Integer (enumerated)
Unit: None

Selects the source for the marker output.

32 "chan0seqtrig0", "channel0_sequencer_trigger0": Channel 1, Sequencer Trigger Output 1.
33 "chan1seqtrig0", "channel1_sequencer_trigger0": Channel 2, Sequencer Trigger Output 1.
34 "chan2seqtrig0", "channel2_sequencer_trigger0": Channel 3, Sequencer Trigger Output 1.
35 "chan3seqtrig0", "channel3_sequencer_trigger0": Channel 4, Sequencer Trigger Output 1.
36 "chan0seqtrig1", "channel0_sequencer_trigger1": Channel 1, Sequencer Trigger Output 2.
37 "chan1seqtrig1", "channel1_sequencer_trigger1": Channel 2, Sequencer Trigger Output 2.
38 "chan2seqtrig1", "channel2_sequencer_trigger1": Channel 3, Sequencer Trigger Output 2.
39 "chan3seqtrig1", "channel3_sequencer_trigger1": Channel 4, Sequencer Trigger Output 2.
128 "chan0rod", "channel0_readout_done": Channel 1, Readout done.
129 "chan1rod", "channel1_readout_done": Channel 2, Readout done.
130 "chan2rod", "channel2_readout_done": Channel 3, Readout done.
131 "chan3rod", "channel3_readout_done": Channel 4, Readout done.
1024 "swtrig0", "software_trigger0": Software Trigger 1.
/dev..../qachannels/n/mode

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Selects between Spectroscopy and Qubit Readout mode.

0 "spectroscopy": In Spectroscopy mode, the Signal Output is connected to the Oscillator, with which also the measured signals are correlated.
1 "readout": In Qubit Readout mode, the Signal Output is connected to the Readout Pulse Generator, and the measured signals are correlated with the Integration Weights before state discrimination.
/dev..../qachannels/n/oscs/n/freq

Properties: Read, Write, Setting
Type: Double
Unit: Hz

Controls the frequency of each digital Oscillator.

/dev..../qachannels/n/oscs/n/gain

Properties: Read, Write, Setting
Type: Double
Unit: None

Controls the gain of each digital Oscillator. The gain is defined relative to the Output Range of the Readout Channel.

/dev..../qachannels/n/output/digitalmixer/centerfreq

Properties: Read
Type: Double
Unit: Hz

The Center Frequency of the digital mixer for the Signal Output.

/dev..../qachannels/n/output/filter

Properties: Read
Type: Integer (enumerated)
Unit: None

Reads the selected analog filter before the Signal Output.

0 "lowpass_1500": Low-pass filter of 1.5 GHz.
1 "lowpass_3000": Low-pass filter of 3 GHz.
2 "bandpass_3000_6000": Band-pass filter between 3 GHz - 6 GHz
3 "bandpass_6000_10000": Band-pass filter between 6 GHz - 10 GHz
/dev..../qachannels/n/output/on

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enables the Signal Output.

/dev..../qachannels/n/output/overrangecount

Properties: Read
Type: Integer (64 bit)
Unit: None

Indicates the number of times the Signal Output was in an overrange condition within the last 200 ms. It is checked for an overrange condition every 10 ms.

/dev..../qachannels/n/output/range

Properties: Read, Write, Setting
Type: Double
Unit: dBm

Sets the maximal Range of the Signal Output power. The instrument selects the closest available Range with a resolution of 5 dBm.

/dev..../qachannels/n/output/rflfinterlock

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enables the RF/LF path interlock between input and output. If enabled (1), the output path is always configured according to the input. The default value is disabled (0).

/dev..../qachannels/n/output/rflfpath

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Switch between RF and LF path for the QA channel output.

0 "lf": LF path is used.
1 "rf": RF path is used.
/dev..../qachannels/n/pipeliner/availableslots

Properties: Read
Type: Integer (64 bit)
Unit: None

Number of free slots in the sequence pipeliner queue. Sequence upload is blocked if this node is 0.

/dev..../qachannels/n/pipeliner/commit

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Commit node data in staging area to queue of sequence pipeliner.

/dev..../qachannels/n/pipeliner/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enable execution of sequences in pipeline.

/dev..../qachannels/n/pipeliner/idcurrent

Properties: Read
Type: Integer (64 bit)
Unit: None

ID of sequence in staging area.

/dev..../qachannels/n/pipeliner/idrunning

Properties: Read
Type: Integer (64 bit)
Unit: None

ID of executed sequence.

/dev..../qachannels/n/pipeliner/maxslots

Properties: Read
Type: Integer (64 bit)
Unit: None

Maximum number of available slots in the sequence pipeliner queue.

/dev..../qachannels/n/pipeliner/mode

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Selects the sequence pipeliner mode: off (default), batch, or queue mode. Changing the mode will reset both the sequence pipeliner and the normal AWG.

0 "off": Off: The sequence pipeliner is turned off.
1 "batch": Batch: The sequence pipeliner operates in batch mode. All sequences must be committed before the pipeliner is enabled. A batch can be executed once or multiple times.
2 "queue": Queue: The sequence pipeliner operates in queue mode. Sequences can be committed while the pipeliner is enabled. Every sequence is executed only once and the slot in the queue is then available for a new sequence.
/dev..../qachannels/n/pipeliner/ready

Properties: Read
Type: Integer (64 bit)
Unit: None

Indicates whether a sequence can be committed to the pipeliner.

/dev..../qachannels/n/pipeliner/repetitions/remaining

Properties: Read
Type: Integer (64 bit)
Unit: None

Number of remaining batch repetitions. This node is fixed to 1 if the sequence pipeliner is not in batch mode.

/dev..../qachannels/n/pipeliner/repetitions/value

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Number of batch repetitions (1 to 4e6). This node is fixed to 1 if the sequence pipeliner is not in batch mode.

/dev..../qachannels/n/pipeliner/reset

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Clears all sequences previously added to the sequence pipeliner and disables the pipeliner if it has been running before.

/dev..../qachannels/n/pipeliner/status

Properties: Read
Type: Integer (enumerated)
Unit: None

Status of the sequence pipeliner (0: idle, 1: executing sequence, 2: waiting for next sequence to be committed (queue mode only)

0 "idle": Idle: The sequence pipeliner is idle.
1 "exec": Executing sequence: The sequence pipeliner is executing a sequence.
2 "waiting": Waiting: The sequence pipeliner is waiting for the next sequence to be committed (queue mode only).
3 "done": Done: The sequence pipeliner is still enabled but all sequences have been executed (batch mode only).
/dev..../qachannels/n/pipeliner/timeout

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Maximal execution time per sequence in milliseconds. The execution of a sequence is aborted if the maximal execution time is reached. A value of 0 means infinity.

/dev..../qachannels/n/readout/discriminators/n/threshold

Properties: Read, Write, Setting, Pipelined
Type: Double
Unit: None

Sets the threshold level for the 2-state discriminator on the real signal axis in Vs.

/dev..../qachannels/n/readout/integration/clearweight

Properties: Read, Write, Pipelined
Type: Integer (64 bit)
Unit: None

Clears all integration weights by setting them to 0.

/dev..../qachannels/n/readout/integration/delay

Properties: Read, Write, Setting, Pipelined
Type: Double
Unit: s

Sets a common delay for the start of the readout integration for all Integration Weights with respect to the time when the trigger is received. The resolution is 2 ns.

/dev..../qachannels/n/readout/integration/length

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Sets the length of all Integration Weights in number of samples. A maximum of 4096 samples can be integrated, which corresponds to 2.05 us.

/dev..../qachannels/n/readout/integration/weights/n/wave

Properties: Read, Write, Pipelined
Type: ZIVectorData
Unit: None

Contains the complex-valued waveform of the Integration Weight. The valid range is between -1.0 and +1.0 for both the real and imaginary part.

/dev..../qachannels/n/readout/multistate/clear

Properties: Read, Write, Pipelined
Type: Integer (64 bit)
Unit: None

Clears all settings related to the multi-state qudit discrimination mode.

/dev..../qachannels/n/readout/multistate/dio/bits/n/source

Properties: Read, Write, Setting, Pipelined
Type: Integer (enumerated)
Unit: None

Sets qudit discrimination bit source to transmit at this DIO bit position.

0 "qudit_0_bit_0": Qudit 0, bit 0
1 "qudit_0_bit_1": Qudit 0, bit 1
2 "qudit_1_bit_0": Qudit 1, bit 0
3 "qudit_1_bit_1": Qudit 1, bit 1
4 "qudit_2_bit_0": Qudit 2, bit 0
5 "qudit_2_bit_1": Qudit 2, bit 1
6 "qudit_3_bit_0": Qudit 3, bit 0
7 "qudit_3_bit_1": Qudit 3, bit 1
8 "qudit_4_bit_0": Qudit 4, bit 0
9 "qudit_4_bit_1": Qudit 4, bit 1
10 "qudit_5_bit_0": Qudit 5, bit 0
11 "qudit_5_bit_1": Qudit 5, bit 1
12 "qudit_6_bit_0": Qudit 6, bit 0
13 "qudit_6_bit_1": Qudit 6, bit 1
14 "qudit_7_bit_0": Qudit 7, bit 0
15 "qudit_7_bit_1": Qudit 7, bit 1
16 "qudit_8_bit_0": Qudit 8, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
17 "qudit_8_bit_1": Qudit 8, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
18 "qudit_9_bit_0": Qudit 9, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
19 "qudit_9_bit_1": Qudit 9, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
20 "qudit_10_bit_0": Qudit 10, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
21 "qudit_10_bit_1": Qudit 10, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
22 "qudit_11_bit_0": Qudit 11, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
23 "qudit_11_bit_1": Qudit 11, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
24 "qudit_12_bit_0": Qudit 12, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
25 "qudit_12_bit_1": Qudit 12, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
26 "qudit_13_bit_0": Qudit 13, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
27 "qudit_13_bit_1": Qudit 13, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
28 "qudit_14_bit_0": Qudit 14, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
29 "qudit_14_bit_1": Qudit 14, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
30 "qudit_15_bit_0": Qudit 15, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
31 "qudit_15_bit_1": Qudit 15, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
32 "fixed_0": Fixed 0
34 "fixed_1": Fixed 1
/dev..../qachannels/n/readout/multistate/dio/packed

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Enables compact bit packing for multi-state qudit discrimination values over DIO, where DIO bits are assigned to qudit bits by increasing qudit index using only one bit for qubits or two bits for qutrits and ququads. The source node becomes read-only in packed mode.

/dev..../qachannels/n/readout/multistate/enable

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Enables multi-state qudit discrimination mode.

/dev..../qachannels/n/readout/multistate/integratorcount

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Number of integrators used by the current multi-state discrimination qudit configuration.

/dev..../qachannels/n/readout/multistate/integratorusage

Properties: Read, Pipelined
Type: Double
Unit: None

Percentage of integrators used by the current multi-state discrimination qudit configuration.

/dev..../qachannels/n/readout/multistate/qudits/n/assignmentvec

Properties: Read, Write, Pipelined
Type: ZIVectorData
Unit: None

Assignment matrix for qudit discrimination. The vector should contain 2^(d * (d - 1) / 2) elements, where d is the maximum number of states for the qudit.

/dev..../qachannels/n/readout/multistate/qudits/n/available

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Indicates whether enough integrators are available to allow enabling the qudit in its current configuration.

/dev..../qachannels/n/readout/multistate/qudits/n/enable

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Enables the multi-state qudit.

/dev..../qachannels/n/readout/multistate/qudits/n/integrator/indexvec

Properties: Read, Pipelined
Type: ZIVectorData
Unit: None

List of integrator indices used by the qudit.

/dev..../qachannels/n/readout/multistate/qudits/n/integrator/startindex

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Index of the first integrator used by the qudit.

/dev..../qachannels/n/readout/multistate/qudits/n/numstates

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Maximum number of states for the qudit. The value must be within the range [2, 4] (inclusive).

/dev..../qachannels/n/readout/multistate/qudits/n/thresholds/n/value

Properties: Read, Write, Setting, Pipelined
Type: Double
Unit: None

Sets the threshold used to discriminate the qudit. Only the first (d * (d - 1) / 2) thresholds will be used, where d is the maximum number of states for the qudit.

/dev..../qachannels/n/readout/multistate/qudits/n/weights/n/wave

Properties: Read, Write, Pipelined
Type: ZIVectorData
Unit: None

Contains the complex-valued waveform of the Integration Weights for the qudit. The valid range is between -1.0 and +1.0 for both the real and imaginary part. Only the first d - 1 waves are used, where d is the maximum number of states for the qudit.

/dev..../qachannels/n/readout/multistate/valid

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Indicates whether the current multi-state qudit configuration allows for all qudits that are set to be enabled to actually be enabled, i.e. whether the enabled qudits require at most the available number of integrators.

/dev..../qachannels/n/readout/multistate/zsync/bits/n/source

Properties: Read, Write, Setting, Pipelined
Type: Integer (enumerated)
Unit: None

Sets qudit discrimination bit source to transmit at this ZSync bit position.

0 "qudit_0_bit_0": Qudit 0, bit 0
1 "qudit_0_bit_1": Qudit 0, bit 1
2 "qudit_1_bit_0": Qudit 1, bit 0
3 "qudit_1_bit_1": Qudit 1, bit 1
4 "qudit_2_bit_0": Qudit 2, bit 0
5 "qudit_2_bit_1": Qudit 2, bit 1
6 "qudit_3_bit_0": Qudit 3, bit 0
7 "qudit_3_bit_1": Qudit 3, bit 1
8 "qudit_4_bit_0": Qudit 4, bit 0
9 "qudit_4_bit_1": Qudit 4, bit 1
10 "qudit_5_bit_0": Qudit 5, bit 0
11 "qudit_5_bit_1": Qudit 5, bit 1
12 "qudit_6_bit_0": Qudit 6, bit 0
13 "qudit_6_bit_1": Qudit 6, bit 1
14 "qudit_7_bit_0": Qudit 7, bit 0
15 "qudit_7_bit_1": Qudit 7, bit 1
16 "qudit_8_bit_0": Qudit 8, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
17 "qudit_8_bit_1": Qudit 8, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
18 "qudit_9_bit_0": Qudit 9, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
19 "qudit_9_bit_1": Qudit 9, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
20 "qudit_10_bit_0": Qudit 10, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
21 "qudit_10_bit_1": Qudit 10, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
22 "qudit_11_bit_0": Qudit 11, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
23 "qudit_11_bit_1": Qudit 11, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
24 "qudit_12_bit_0": Qudit 12, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
25 "qudit_12_bit_1": Qudit 12, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
26 "qudit_13_bit_0": Qudit 13, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
27 "qudit_13_bit_1": Qudit 13, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
28 "qudit_14_bit_0": Qudit 14, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
29 "qudit_14_bit_1": Qudit 14, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
30 "qudit_15_bit_0": Qudit 15, bit 0 (requires 4-channel SHFQA or SHFQA-16W option)
31 "qudit_15_bit_1": Qudit 15, bit 1 (requires 4-channel SHFQA or SHFQA-16W option)
32 "fixed_0": Fixed 0. Note: this bit will not be forwarded by the PQSC since it is marked as invalid result.
34 "fixed_1": Fixed 1. Note: this bit will not be forwarded by the PQSC since it is marked as invalid result.
/dev..../qachannels/n/readout/multistate/zsync/packed

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Enables compact bit packing for multi-state qudit discrimination values over ZSync, where zSync bits are assigned to qudit bits by increasing qudit index using only one bit for qubits or two bits for qutrits and ququads. The source node becomes read-only in packed mode.

/dev..../qachannels/n/readout/result/acquired

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Indicates the index of the acquisition that will be performed on the next trigger.

/dev..../qachannels/n/readout/result/averages

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Number of measurements that are averaged.

/dev..../qachannels/n/readout/result/data/n/wave

Properties: Read, Pipelined
Type: ZIVectorData
Unit: None

Acquired result data. Depending on the source of the data, the data can be complex- or integer-valued.

/dev..../qachannels/n/readout/result/enable

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Enables the acquisition of readout results.

/dev..../qachannels/n/readout/result/error/clear

Properties: Read, Write, Pipelined
Type: Integer (64 bit)
Unit: None

Writing to this node clears the hold-off error count.

/dev..../qachannels/n/readout/result/error/count

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Number of hold-off errors detected.

/dev..../qachannels/n/readout/result/error/jobidx

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Job index for which last hold-off errors were detected.

/dev..../qachannels/n/readout/result/length

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Number of data points to record. One data point corresponds to a single averaged result value of the selected source.

/dev..../qachannels/n/readout/result/mode

Properties: Read, Write, Setting, Pipelined
Type: Integer (enumerated)
Unit: None

Selects the averaging order of the result.

0 "cyclic": Cyclic averaging: a sequence of multiple results is recorded first, then averaged with the next repetition of the same sequence.
1 "sequential": Sequential averaging: each result is recorded and averaged first, before the next result is recorded and averaged.
/dev..../qachannels/n/readout/result/overdio

Properties: Read
Type: Integer (64 bit)
Unit: None

Number of DIO interface overflows during readout. This can happen if readouts are triggered faster than the maximum possible data-rate of the DIO interface.

/dev..../qachannels/n/readout/result/source

Properties: Read, Write, Setting, Pipelined
Type: Integer (enumerated)
Unit: None

Selects the signal source of the Result Logger.

1 "result_of_integration": Complex-valued integration results of the Weighted Integration in Qubit Readout mode.
3 "result_of_discrimination": The results after state discrimination.
/dev..../qachannels/n/spectroscopy/delay

Properties: Read, Write, Setting, Pipelined
Type: Double
Unit: s

Sets the delay of the integration in Spectroscopy mode with respect to the Trigger signal. The resolution is 2 ns.

/dev..../qachannels/n/spectroscopy/envelope/delay

Properties: Read, Write, Setting, Pipelined
Type: Double
Unit: s

Sets the delay of the envelope waveform in Spectroscopy mode with respect to the Trigger signal. The resolution is 2 ns.

/dev..../qachannels/n/spectroscopy/envelope/enable

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Enables the modulation of the oscillator signal with the complex envelope waveform.

/dev..../qachannels/n/spectroscopy/envelope/length

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Length of the uploaded envelope waveform in number of complex samples.

/dev..../qachannels/n/spectroscopy/envelope/wave

Properties: Read, Write, Pipelined
Type: ZIVectorData
Unit: None

Contains the envelope waveform as a vector of complex samples.

/dev..../qachannels/n/spectroscopy/length

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Sets the integration length in Spectroscopy mode in number of samples. Up to 33.5 MSa (2^25 samples) can be recorded, which corresponds to 16.7 ms.

/dev..../qachannels/n/spectroscopy/psd/enable

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Enable the power spectral density mode of the spectroscopy mode.

/dev..../qachannels/n/spectroscopy/psd/error/clear

Properties: Read, Write, Pipelined
Type: Integer (64 bit)
Unit: None

Clears power spectral density error flags.

/dev..../qachannels/n/spectroscopy/psd/error/overflow

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Indicates whether overflow happened while calculating the power spectral density.

/dev..../qachannels/n/spectroscopy/result/acquired

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Indicates the index of the acquisition that will be performed on the next trigger.

/dev..../qachannels/n/spectroscopy/result/averages

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Number of measurements that are averaged.

/dev..../qachannels/n/spectroscopy/result/data/wave

Properties: Read, Pipelined
Type: ZIVectorData
Unit: None

Acquired complex spectroscopy result data.

/dev..../qachannels/n/spectroscopy/result/enable

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Enables the acquisition of spectroscopy results.

/dev..../qachannels/n/spectroscopy/result/error/clear

Properties: Read, Write, Pipelined
Type: Integer (64 bit)
Unit: None

Writing to this node clears the hold-off error count.

/dev..../qachannels/n/spectroscopy/result/error/count

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Number of hold-off errors detected.

/dev..../qachannels/n/spectroscopy/result/error/jobidx

Properties: Read, Pipelined
Type: Integer (64 bit)
Unit: None

Job index for which last hold-off errors were detected.

/dev..../qachannels/n/spectroscopy/result/length

Properties: Read, Write, Setting, Pipelined
Type: Integer (64 bit)
Unit: None

Number of data points to record. One data point corresponds to a single averaged result value of the selected source.

/dev..../qachannels/n/spectroscopy/result/mode

Properties: Read, Write, Setting, Pipelined
Type: Integer (enumerated)
Unit: None

Selects the averaging order of the result.

0 "cyclic": Cyclic averaging: a sequence of multiple results is recorded first, then averaged with the next repetition of the same sequence.
1 "sequential": Sequential averaging: each result is recorded and averaged first, before the next result is recorded and averaged.
/dev..../qachannels/n/spectroscopy/trigger/channel

Properties: Read, Write, Setting, Pipelined
Type: Integer (enumerated)
Unit: None

Selects the source of the trigger for the integration and envelope in Spectroscopy mode.

0 "chan0trigin0", "channel0_trigger_input0": Channel 1, Trigger Input A.
1 "chan0trigin1", "channel0_trigger_input1": Channel 1, Trigger Input B.
2 "chan1trigin0", "channel1_trigger_input0": Channel 2, Trigger Input A.
3 "chan1trigin1", "channel1_trigger_input1": Channel 2, Trigger Input B.
4 "chan2trigin0", "channel2_trigger_input0": Channel 3, Trigger Input A.
5 "chan2trigin1", "channel2_trigger_input1": Channel 3, Trigger Input B.
6 "chan3trigin0", "channel3_trigger_input0": Channel 4, Trigger Input A.
7 "chan3trigin1", "channel3_trigger_input1": Channel 4, Trigger Input B.
8 "inttrig", "internal_trigger": Internal Trigger
32 "chan0seqtrig0", "channel0_sequencer_trigger0": Channel 1, Sequencer Trigger Output 1.
33 "chan1seqtrig0", "channel1_sequencer_trigger0": Channel 2, Sequencer Trigger Output 1.
34 "chan2seqtrig0", "channel2_sequencer_trigger0": Channel 3, Sequencer Trigger Output 1.
35 "chan3seqtrig0", "channel3_sequencer_trigger0": Channel 4, Sequencer Trigger Output 1.
36 "chan0seqtrig1", "channel0_sequencer_trigger1": Channel 1, Sequencer Trigger Output 2.
37 "chan1seqtrig1", "channel1_sequencer_trigger1": Channel 2, Sequencer Trigger Output 2.
38 "chan2seqtrig1", "channel2_sequencer_trigger1": Channel 3, Sequencer Trigger Output 2.
39 "chan3seqtrig1", "channel3_sequencer_trigger1": Channel 4, Sequencer Trigger Output 2.
1024 "swtrig0", "software_trigger0": Software Trigger 1.
/dev..../qachannels/n/synchronization/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enable multi-channel synchronization for this channel. The program will only execute once all channels with enabled synchronization are ready.

/dev..../qachannels/n/triggers/n/imp50

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Trigger Input impedance: When on, the Trigger Input impedance is 50 Ohm; when off, 1 kOhm.

0 "1_kOhm": OFF: 1 k Ohm
1 "50_Ohm": ON: 50 Ohm
/dev..../qachannels/n/triggers/n/level

Properties: Read, Write, Setting
Type: Double
Unit: V

Defines the analog Trigger level.

/dev..../qachannels/n/triggers/n/value

Properties: Read
Type: Integer (64 bit)
Unit: None

Shows the value of the digital Trigger Input. The value is integrated over a period of 100 ms. Values are: 1: low; 2: high; 3: was low and high in the period.

SCOPES

/dev..../scopes/n/averaging/count

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Configures the number of Scope measurements to average.

/dev..../scopes/n/averaging/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enables averaging of Scope measurements.

/dev..../scopes/n/channels/n/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: Dependent

Enables recording for this Scope channel.

/dev..../scopes/n/channels/n/inputselect

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Selects the scope input signal.

0 "chan0sigin", "channel0_signal_input": Signal Input Channel 1.
1 "chan1sigin", "channel1_signal_input": Signal Input Channel 2.
2 "chan2sigin", "channel2_signal_input": Signal Input Channel 3.
3 "chan3sigin", "channel3_signal_input": Signal Input Channel 4.
/dev..../scopes/n/channels/n/wave

Properties: Read
Type: ZIVectorData
Unit: Dependent

Contains the acquired Scope measurement data.

/dev..../scopes/n/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enables the acquisition of Scope shots. Goes back to 0 (disabled) after the scope shot has been acquired.

/dev..../scopes/n/length

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Defines the length of the recorded Scope shot in number of samples.

/dev..../scopes/n/segments/count

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Specifies the number of segments to be recorded in device memory. The maximum Scope shot size is given by the available memory divided by the number of segments.

/dev..../scopes/n/segments/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enable segmented Scope recording. This allows for full bandwidth recording of Scope shots with a minimum dead time between individual shots.

/dev..../scopes/n/single

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Puts the Scope into single shot mode.

/dev..../scopes/n/time

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Defines the time base of the Scope.

0 2 GHz
/dev..../scopes/n/trigger/channel

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Selects the trigger source signal.

0 "chan0trigin0", "channel0_trigger_input0": Channel 1, Trigger Input A.
1 "chan0trigin1", "channel0_trigger_input1": Channel 1, Trigger Input B.
2 "chan1trigin0", "channel1_trigger_input0": Channel 2, Trigger Input A.
3 "chan1trigin1", "channel1_trigger_input1": Channel 2, Trigger Input B.
4 "chan2trigin0", "channel2_trigger_input0": Channel 3, Trigger Input A.
5 "chan2trigin1", "channel2_trigger_input1": Channel 3, Trigger Input B.
6 "chan3trigin0", "channel3_trigger_input0": Channel 4, Trigger Input A.
7 "chan3trigin1", "channel3_trigger_input1": Channel 4, Trigger Input B.
8 "inttrig", "internal_trigger": Internal Trigger
32 "chan0seqtrig0", "channel0_sequencer_trigger0": Channel 1, Sequencer Trigger Output 1.
33 "chan1seqtrig0", "channel1_sequencer_trigger0": Channel 2, Sequencer Trigger Output 1.
34 "chan2seqtrig0", "channel2_sequencer_trigger0": Channel 3, Sequencer Trigger Output 1.
35 "chan3seqtrig0", "channel3_sequencer_trigger0": Channel 4, Sequencer Trigger Output 1.
36 "chan0seqtrig1", "channel0_sequencer_trigger1": Channel 1, Sequencer Trigger Output 2.
37 "chan1seqtrig1", "channel1_sequencer_trigger1": Channel 2, Sequencer Trigger Output 2.
38 "chan2seqtrig1", "channel2_sequencer_trigger1": Channel 3, Sequencer Trigger Output 2.
39 "chan3seqtrig1", "channel3_sequencer_trigger1": Channel 4, Sequencer Trigger Output 2.
64 "chan0seqmon0", "channel0_sequencer_monitor0": Channel 1, Sequencer Monitor Trigger.
65 "chan1seqmon0", "channel1_sequencer_monitor0": Channel 2, Sequencer Monitor Trigger.
66 "chan2seqmon0", "channel2_sequencer_monitor0": Channel 3, Sequencer Monitor Trigger.
67 "chan3seqmon0", "channel3_sequencer_monitor0": Channel 4, Sequencer Monitor Trigger.
1024 "swtrig0", "software_trigger0": Software Trigger 1.
/dev..../scopes/n/trigger/delay

Properties: Read, Write, Setting
Type: Double
Unit: s

The delay of a Scope measurement. A negative delay results in data being acquired before the trigger point. The resolution is 2 ns.

/dev..../scopes/n/trigger/enable

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

When triggering is enabled scope data are acquired every time the defined trigger condition is met.

0 "off": OFF: Continuous scope shot acquisition
1 "on": ON: Trigger based scope shot acquisition

STATS

/dev..../stats/physical/currents/n

Properties: Read
Type: Double
Unit: mA

Provides internal current readings for monitoring.

/dev..../stats/physical/fanspeeds/n

Properties: Read
Type: Integer (64 bit)
Unit: RPM

Speed of the internal cooling fans for monitoring.

/dev..../stats/physical/fpga/aux

Properties: Read
Type: Double
Unit: V

Supply voltage of the FPGA.

/dev..../stats/physical/fpga/core

Properties: Read
Type: Double
Unit: V

Core voltage of the FPGA.

/dev..../stats/physical/fpga/pstemp

Properties: Read
Type: Double
Unit: °C

Internal temperature of the FPGA's processor system.

/dev..../stats/physical/fpga/temp

Properties: Read
Type: Double
Unit: °C

Internal temperature of the FPGA.

/dev..../stats/physical/overtemperature

Properties: Read
Type: Integer (64 bit)
Unit: None

This flag is set to a value greater than 0 when the internal temperatures are reaching critical limits.

/dev..../stats/physical/power/currents/n

Properties: Read
Type: Double
Unit: A

Currents of the main power supply.

/dev..../stats/physical/power/temperatures/n

Properties: Read
Type: Double
Unit: °C

Temperatures of the main power supply.

/dev..../stats/physical/power/voltages/n

Properties: Read
Type: Double
Unit: V

Voltages of the main power supply.

/dev..../stats/physical/sigins/n/currents/n

Properties: Read
Type: Double
Unit: A

Provides internal current readings on the Signal Input board for monitoring.

/dev..../stats/physical/sigins/n/temperatures/n

Properties: Read
Type: Double
Unit: °C

Provides internal temperature readings on the Signal Input board for monitoring.

/dev..../stats/physical/sigins/n/voltages/n

Properties: Read
Type: Double
Unit: V

Provides internal voltage measurement on the Signal Input board for monitoring.

/dev..../stats/physical/sigouts/n/currents/n

Properties: Read
Type: Double
Unit: A

Provides internal current readings on the Signal Output board for monitoring.

/dev..../stats/physical/sigouts/n/temperatures/n

Properties: Read
Type: Double
Unit: °C

Provides internal temperature readings on the Signal Output board for monitoring.

/dev..../stats/physical/sigouts/n/voltages/n

Properties: Read
Type: Double
Unit: V

Provides internal voltage readings on the Signal Output board for monitoring.

/dev..../stats/physical/synthesizer/currents/n

Properties: Read
Type: Double
Unit: A

Provides internal current readings on the Synthesizer board for monitoring.

/dev..../stats/physical/synthesizer/temperatures/n

Properties: Read
Type: Double
Unit: °C

Provides internal temperature readings on the Synthesizer board for monitoring.

/dev..../stats/physical/synthesizer/voltages/n

Properties: Read
Type: Double
Unit: V

Provides internal voltage readings on the Synthesizer board for monitoring.

/dev..../stats/physical/temperatures/n

Properties: Read
Type: Double
Unit: °C

Provides internal temperature readings for monitoring.

/dev..../stats/physical/voltages/n

Properties: Read
Type: Double
Unit: V

Provides internal voltage readings for monitoring.

STATUS

/dev..../status/adc0max

Properties: Read
Type: Integer (64 bit)
Unit: None

The maximum value on Signal Input 1 (ADC0) during 100 ms.

/dev..../status/adc0min

Properties: Read
Type: Integer (64 bit)
Unit: None

The minimum value on Signal Input 1 (ADC0) during 100 ms

/dev..../status/adc1max

Properties: Read
Type: Integer (64 bit)
Unit: None

The maximum value on Signal Input 2 (ADC1) during 100 ms.

/dev..../status/adc1min

Properties: Read
Type: Integer (64 bit)
Unit: None

The minimum value on Signal Input 2 (ADC1) during 100 ms

/dev..../status/flags/binary

Properties: Read
Type: Integer (64 bit)
Unit: None

A set of binary flags giving an indication of the state of various parts of the device. Reserved for future use.

/dev..../status/time

Properties: Read
Type: Integer (64 bit)
Unit: None

The current timestamp.

SYSTEM

/dev..../system/activeinterface

Properties: Read
Type: String
Unit: None

Currently active interface of the device.

/dev..../system/boardrevisions/n

Properties: Read
Type: String
Unit: None

Hardware revision of the motherboard containing the FPGA.

/dev..../system/clocks/referenceclock/in/freq

Properties: Read
Type: Double
Unit: Hz

Indicates the frequency of the reference clock.

/dev..../system/clocks/referenceclock/in/source

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

The intended reference clock source. When the source is changed, all the instruments connected with ZSync links will be disconnected. The connection should be re-established manually.

0 "internal": The internal clock is intended to be used as the frequency and time base reference.
1 "external": An external clock is intended to be used as the frequency and time base reference. Provide a clean and stable 10 MHz or 100 MHz reference to the appropriate back panel connector.
2 "zsync": The ZSync clock is intended to be used as the frequency and time base reference.
/dev..../system/clocks/referenceclock/in/sourceactual

Properties: Read
Type: Integer (enumerated)
Unit: None

The actual reference clock source.

0 "internal": The internal clock is used as the frequency and time base reference.
1 "external": An external clock is used as the frequency and time base reference.
2 "zsync": The ZSync clock is used as the frequency and time base reference.
/dev..../system/clocks/referenceclock/in/status

Properties: Read
Type: Integer (enumerated)
Unit: None

Status of the reference clock.

0 "locked": Reference clock has been locked on.
1 "error": There was an error locking onto the reference clock signal.
2 "busy": The device is busy trying to lock onto the reference clock signal.
/dev..../system/clocks/referenceclock/out/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enable clock signal on the reference clock output. When the clock output is turned on or off, all the instruments connected with ZSync links will be disconnected. The connection should be re-established manually.

/dev..../system/clocks/referenceclock/out/freq

Properties: Read, Write, Setting
Type: Double
Unit: Hz

Select the frequency of the output reference clock. Only 10 MHz and 100 MHz are allowed.

/dev..../system/fpgarevision

Properties: Read
Type: Integer (64 bit)
Unit: None

HDL firmware revision.

/dev..../system/fwlog

Properties: Read
Type: String
Unit: None

Returns log output of the firmware.

/dev..../system/fwlogenable

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Enables logging to the fwlog node.

/dev..../system/fwrevision

Properties: Read
Type: Integer (64 bit)
Unit: None

Revision of the device-internal controller software.

/dev..../system/identify

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Setting this node to 1 will cause all frontpanel LEDs to blink for 5 seconds, then return to their previous state.

/dev..../system/internaltrigger/enable

Properties: Read, Write
Type: Integer (enumerated)
Unit: None

Enable internal trigger generator.

0 "off": Generator off
1 "on": Generator on
/dev..../system/internaltrigger/holdoff

Properties: Read, Write, Setting
Type: Double
Unit: s

Hold-off time between generated triggers.

/dev..../system/internaltrigger/progress

Properties: Read
Type: Double
Unit: None

The fraction of the triggers generated so far.

/dev..../system/internaltrigger/repetitions

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Number of triggers to be generated.

/dev..../system/internaltrigger/synchronization/enable

Properties: Read, Write, Setting
Type: Integer (64 bit)
Unit: None

Enable synchronization. Trigger generation will only start once all synchronization participants have reported a ready status. Synchronization checks will be repeated with the same trigger generation settings (holdoff and repetitions) until synchronization is disabled.

/dev..../system/kerneltype

Properties: Read
Type: String
Unit: None

Returns the type of the data server kernel (mdk or hpk).

/dev..../system/nics/n/defaultgateway

Properties: Read, Write
Type: String
Unit: None

Default gateway configuration for the network connection.

/dev..../system/nics/n/defaultip4

Properties: Read, Write
Type: String
Unit: None

IPv4 address of the device to use if static IP is enabled.

/dev..../system/nics/n/defaultmask

Properties: Read, Write
Type: String
Unit: None

IPv4 mask in case of static IP.

/dev..../system/nics/n/gateway

Properties: Read
Type: String
Unit: None

Current network gateway.

/dev..../system/nics/n/ip4

Properties: Read
Type: String
Unit: None

Current IPv4 of the device.

/dev..../system/nics/n/mac

Properties: Read
Type: String
Unit: None

Current MAC address of the device network interface.

/dev..../system/nics/n/mask

Properties: Read
Type: String
Unit: None

Current network mask.

/dev..../system/nics/n/saveip

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

If written, this action will program the defined static IP address to the device.

/dev..../system/nics/n/static

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Enable this flag if the device is used in a network with fixed IP assignment without a DHCP server.

/dev..../system/preset/busy

Properties: Read
Type: Integer (64 bit)
Unit: None

Indicates if presets are currently loaded.

/dev..../system/preset/error

Properties: Read
Type: Integer (64 bit)
Unit: None

Indicates if the last operation was illegal. Successful: 0, Error: 1.

/dev..../system/preset/load

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Load the selected preset.

/dev..../system/properties/freqresolution

Properties: Read
Type: Integer (64 bit)
Unit: None

The number of bits used to represent a frequency.

/dev..../system/properties/freqscaling

Properties: Read
Type: Double
Unit: None

The scale factor to use to convert a frequency represented as a freqresolution-bit integer to a floating point value.

/dev..../system/properties/maxfreq

Properties: Read
Type: Double
Unit: None

The maximum oscillator frequency that can be set.

/dev..../system/properties/maxtimeconstant

Properties: Read
Type: Double
Unit: s

The maximum demodulator time constant that can be set. Only relevant for lock-in amplifiers.

/dev..../system/properties/minfreq

Properties: Read
Type: Double
Unit: None

The minimum oscillator frequency that can be set.

/dev..../system/properties/mintimeconstant

Properties: Read
Type: Double
Unit: s

The minimum demodulator time constant that can be set. Only relevant for lock-in amplifiers.

/dev..../system/properties/negativefreq

Properties: Read
Type: Integer (64 bit)
Unit: None

Indicates whether negative frequencies are supported.

/dev..../system/properties/timebase

Properties: Read
Type: Double
Unit: s

Minimal time difference between two timestamps. The value is equal to 1/(maximum sampling rate).

/dev..../system/shutdown

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Sending a '1' to this node initiates a shutdown of the operating system on the device. It is recommended to trigger this shutdown before switching the device off with the hardware switch at the back side of the device.

/dev..../system/stall

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Indicates if the network connection is stalled.

/dev..../system/swtriggers/n/single

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Issues a single software trigger event.

/dev..../system/synchronization/source

Properties: Read, Write, Setting
Type: Integer (enumerated)
Unit: None

Selects the source for synchronization of channels: internal (default) or external

0 "internal": Internal: Synchronization of all channels of a device that have the corresponding synchronization setting enabled.
1 "external": External: Same as internal plus synchronization to other devices via ZSync.
/dev..../system/update

Properties: Read, Write
Type: Integer (64 bit)
Unit: None

Requests update of the device firmware and bitstream from the dataserver.