Device Node Tree¶
This chapter contains reference documentation for the settings and measurement data available on SHFSG+ 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 SHFSG+ 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.
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. |
| 48 | "sgchan0seq", "sgchannel0_sequencer": Enables control of DIO values by the sequencer of SG channel 1. |
| 49 | "sgchan1seq", "sgchannel1_sequencer": Enables control of DIO values by the sequencer of SG channel 2. |
| 50 | "sgchan2seq", "sgchannel2_sequencer": Enables control of DIO values by the sequencer of SG channel 3. |
| 51 | "sgchan3seq", "sgchannel3_sequencer": Enables control of DIO values by the sequencer of SG 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.
SGCHANNELS¶
/dev..../sgchannels/n/awg/auxtriggers/n/channel ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Selects the digital trigger source signal.
| 0 | "trigin0", "trigger_input0": Trigger In 1 |
| 1 | "trigin1", "trigger_input1": Trigger In 2 |
| 2 | "trigin2", "trigger_input2": Trigger In 3 |
| 3 | "trigin3", "trigger_input3": Trigger In 4 |
| 4 | "trigin4", "trigger_input4": Trigger In 5 |
| 5 | "trigin5", "trigger_input5": Trigger In 6 |
| 6 | "trigin6", "trigger_input6": Trigger In 7 |
| 7 | "trigin7", "trigger_input7": Trigger In 8 |
| 8 | "inttrig", "internal_trigger": Internal Trigger |
/dev..../sgchannels/n/awg/auxtriggers/n/slope ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Select the signal edge that should activate the trigger. The trigger will be level sensitive when the Level option is selected.
| 0 | "level_sensitive": Level sensitive trigger |
| 1 | "rising_edge": Rising edge trigger |
| 2 | "falling_edge": Falling edge trigger |
| 3 | "both_edges": Rising or falling edge trigger |
/dev..../sgchannels/n/awg/auxtriggers/n/state ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
State of the Auxiliary Trigger: No trigger detected/trigger detected.
/dev..../sgchannels/n/awg/commandtable/clear ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Writing to this node clears all data previously loaded to the command table of the device. If the sequence pipeliner mode is not off, the command table in the sequence pipeliner staging area is cleared instead.
/dev..../sgchannels/n/awg/commandtable/data ¶
| Properties: | Read, Write, Pipelined |
| Type: | ZIVectorData |
| Unit: | None |
Data contained in the command table in JSON format.
/dev..../sgchannels/n/awg/commandtable/schema ¶
| Properties: | Read |
| Type: | ZIVectorData |
| Unit: | None |
JSON schema describing the command table JSON format (read-only).
/dev..../sgchannels/n/awg/commandtable/status ¶
| Properties: | Read, Pipelined |
| Type: | Integer (64 bit) |
| Unit: | None |
Status of the command table on the instrument. If the sequence pipeliner mode is not off, the status of the command table in the sequence pipeliner staging area is shown instead. Bit 0: data uploaded to the command table; Bit 1, Bit 2: reserved; Bit 3: uploading of data to the command table failed due to a JSON parsing error.
/dev..../sgchannels/n/awg/dio/error/timing ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
A 32-bit value indicating which bits on the DIO interface may have timing errors. A timing error is defined as an event where either the VALID or any of the data bits on the DIO interface change value at the same time as the STROBE bit.
/dev..../sgchannels/n/awg/dio/error/width ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
Indicates a width (i.e. jitter) error on either the STROBE (bit 0 of the value) or VALID bit (bit 1 of the result). A width error indicates that there was jitter detected on the given bit, meaning that an active period was either shorter or longer than the configured expected width.
/dev..../sgchannels/n/awg/dio/highbits ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
32-bit value indicating which bits on the 32-bit interface are detected as having a logic high value.
/dev..../sgchannels/n/awg/dio/lowbits ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
32-bit value indicating which bits on the 32-bit interface are detected as having a logic low value.
/dev..../sgchannels/n/awg/dio/mask/shift ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Defines the amount of bit shifting to apply for the DIO wave selection in connection with playWaveDIO().
/dev..../sgchannels/n/awg/dio/mask/value ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Selects the DIO bits to be used for waveform selection in connection with playWaveDIO().
/dev..../sgchannels/n/awg/dio/state ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
When asserted, indicates that triggers are generated from the DIO interface to the AWG.
/dev..../sgchannels/n/awg/dio/strobe/index ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Select the DIO bit to use as the STROBE signal.
/dev..../sgchannels/n/awg/dio/strobe/slope ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Select the signal edge of the STROBE signal for use in timing alignment.
| 0 | "off": Off |
| 1 | "rising_edge": Rising edge trigger |
| 2 | "falling_edge": Falling edge trigger |
| 3 | "both_edges": Rising or falling edge trigger |
/dev..../sgchannels/n/awg/dio/strobe/width ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Specifies the expected width of active pulses on the STROBE bit.
/dev..../sgchannels/n/awg/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 a valid input is available.
/dev..../sgchannels/n/awg/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..../sgchannels/n/awg/dio/valid/width ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Expected width of an active pulse on the VALID bit.
/dev..../sgchannels/n/awg/diozsyncswitch ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Defines which interface input to use with this AWG
| 0 | "dio": DIO interface will be used as input. |
| 1 | "zsync": ZSync interface will be used as input. |
/dev..../sgchannels/n/awg/elf/checksum ¶
| Properties: | Read, Pipelined |
| Type: | Integer (64 bit) |
| Unit: | None |
Checksum of the uploaded ELF file.
/dev..../sgchannels/n/awg/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..../sgchannels/n/awg/elf/length ¶
| Properties: | Read, Pipelined |
| Type: | Integer (64 bit) |
| Unit: | None |
Length of the compiled ELF file.
/dev..../sgchannels/n/awg/elf/memoryusage ¶
| Properties: | Read, Pipelined |
| Type: | Double |
| Unit: | None |
Size of the uploaded ELF file relative to the size of the main memory.
/dev..../sgchannels/n/awg/elf/name ¶
| Properties: | Read, Pipelined |
| Type: | ZIVectorData |
| Unit: | None |
The name of the uploaded ELF file.
/dev..../sgchannels/n/awg/elf/progress ¶
| Properties: | Read, Pipelined |
| Type: | Double |
| Unit: | % |
The percentage of the sequencer program already uploaded to the device.
/dev..../sgchannels/n/awg/enable ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Activates the AWG.
/dev..../sgchannels/n/awg/modulation/enable ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Enable or disable digital modulation.
| 0 | "off": Modulation off |
| 1 | "on": Modulation on |
/dev..../sgchannels/n/awg/outputamplitude ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | None |
Amplitude scale factor applied to both AWG outputs.
/dev..../sgchannels/n/awg/outputs/n/enables/n ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
Indicates the routing of the AWG signal (k index) to the digital mixer input (m index).
/dev..../sgchannels/n/awg/outputs/n/gains/n ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | None |
Gain factor applied to the AWG Output at the given output multiplier stage. The final signal amplitude is proportional to the Range voltage setting of the Wave signal outputs.
/dev..../sgchannels/n/awg/outputs/n/hold ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Keep the last sample (constant) on the output even after the waveform program finishes.
/dev..../sgchannels/n/awg/ready ¶
| Properties: | Read, Pipelined |
| Type: | Integer (64 bit) |
| Unit: | None |
A value of True means that the AWG has a compiled waveform and is ready to be enabled. If the sequence pipeliner is not off, a value of True means that the sequence in the staging area is ready to be committed to the pipeline.
/dev..../sgchannels/n/awg/reset ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Clears the configured AWG program and resets the state to not ready.
/dev..../sgchannels/n/awg/rtlogger/clear ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Clears the logger data.
/dev..../sgchannels/n/awg/rtlogger/data ¶
| Properties: | Read |
| Type: | ZIVectorData |
| Unit: | None |
Vector node with the logged events.
/dev..../sgchannels/n/awg/rtlogger/enable ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Activates the Real-time Logger.
/dev..../sgchannels/n/awg/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..../sgchannels/n/awg/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..../sgchannels/n/awg/rtlogger/starttimestamp ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Timestamp at which to start logging for timestamp-triggered mode.
/dev..../sgchannels/n/awg/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..../sgchannels/n/awg/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..../sgchannels/n/awg/sequencer/assembly ¶
| Properties: | Read |
| Type: | ZIVectorData |
| Unit: | None |
Displays the current sequence program in compiled form. Every line corresponds to one hardware instruction.
/dev..../sgchannels/n/awg/sequencer/continue ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Reserved for future use.
/dev..../sgchannels/n/awg/sequencer/memoryusage ¶
| Properties: | Read |
| Type: | Double |
| Unit: | None |
Size of the current Sequencer program relative to the available instruction memory of 32 kInstructions (32'768 instructions).
/dev..../sgchannels/n/awg/sequencer/next ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Reserved for future use.
/dev..../sgchannels/n/awg/sequencer/pc ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
Current position in the list of sequence instructions during execution.
/dev..../sgchannels/n/awg/sequencer/program ¶
| Properties: | Read |
| Type: | ZIVectorData |
| Unit: | None |
Displays the source code of the current sequence program.
/dev..../sgchannels/n/awg/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: AWG has detected an error; Bit 4: sequencer is waiting for synchronization with other channels.
/dev..../sgchannels/n/awg/sequencer/triggered ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
When 1, indicates that the AWG Sequencer has been triggered.
/dev..../sgchannels/n/awg/single ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Puts the AWG into single shot mode.
/dev..../sgchannels/n/awg/time ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
AWG sampling rate. The numeric values here are equal to the base sampling rate of 2.0 GHz divided by 2^n, where n is the node value. This value is used by default and can be overridden in the Sequence program.
| 0 | 2.0 GHz |
| 1 | 1.0 GHz |
| 2 | 500 MHz |
| 3 | 250 MHz |
| 4 | 125 MHz |
| 5 | 62.50 MHz |
| 6 | 31.25 MHz |
| 7 | 15.63 MHz |
| 8 | 7.81 MHz |
| 9 | 3.91 MHz |
| 10 | 1.95 MHz |
| 11 | 976.56 kHz |
| 12 | 488.28 kHz |
| 13 | 244.14 kHz |
/dev..../sgchannels/n/awg/userregs/n ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Integer user register value. The sequencer has reading and writing access to the user register values during run time.
/dev..../sgchannels/n/awg/waveform/descriptors ¶
| Properties: | Read |
| Type: | ZIVectorData |
| Unit: | None |
JSON-formatted string containing a dictionary of various properties of the current waveform: name, filename, function, channels, marker bits, length, timestamp.
/dev..../sgchannels/n/awg/waveform/memoryusage ¶
| Properties: | Read |
| Type: | Double |
| Unit: | % |
Amount of the used waveform data relative to the device memory. The memory provides space for 96 kSa (98'304 Sa) of dual-channel waveform data.
/dev..../sgchannels/n/awg/waveform/playing ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
When 1, indicates if a waveform is being played currently.
/dev..../sgchannels/n/awg/waveform/waves/n ¶
| Properties: | Read, Write |
| Type: | ZIVectorData |
| Unit: | None |
The waveform data in the instrument's native format for the given playWave waveform index. This node will not work with subscribe as it does not push updates. For short vectors get may be used. For long vectors (causing get to time out) getAsEvent and poll can be used. The index of the waveform to be replaced can be determined using the Waveform sub-tab in the AWG tab of the LabOne User Interface.
/dev..../sgchannels/n/centerfreq ¶
| Properties: | Read |
| Type: | Double |
| Unit: | Hz |
The Center Frequency of signal generation band. This value is read-only. Frequency is set through synthesizer node.
/dev..../sgchannels/n/digitalmixer/centerfreq ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | Hz |
Set center frequency of digital mixer.
/dev..../sgchannels/n/internal ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
Indicates if an SG-channel is internal 1, otherwise 0. An internal channel is not equipped with an upconverter and needs to be routed to a channel with an upconverter.
/dev..../sgchannels/n/marker/source ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Assign a signal to a marker.
| 0 | "awg_trigger0": Trigger output is assigned to AWG Trigger 1, controlled by AWG sequencer commands. |
| 1 | "awg_trigger1": Trigger output is assigned to AWG Trigger 2, controlled by AWG sequencer commands. |
| 2 | "awg_trigger2": Trigger output is assigned to AWG Trigger 3, controlled by AWG sequencer commands. |
| 3 | "awg_trigger3": Trigger output is assigned to AWG Trigger 4, controlled by AWG sequencer commands. |
| 4 | "output0_marker0": Output is assigned to I component Marker 1. |
| 5 | "output0_marker1": Output is assigned to I component Marker 2. |
| 6 | "output1_marker0": Output is assigned to Q component Marker 1. |
| 7 | "output1_marker1": Output is assigned to Q component Marker 2. |
| 8 | "trigin0", "trigger_input0": Output is assigned to Trigger Input 1. |
| 9 | "trigin1", "trigger_input1": Output is assigned to Trigger Input 2. |
| 10 | "trigin2", "trigger_input2": Output is assigned to Trigger Input 3. |
| 11 | "trigin3", "trigger_input3": Output is assigned to Trigger Input 4. |
| 12 | "trigin4", "trigger_input4": Output is assigned to Trigger Input 5. |
| 13 | "trigin5", "trigger_input5": Output is assigned to Trigger Input 6. |
| 14 | "trigin6", "trigger_input6": Output is assigned to Trigger Input 7. |
| 15 | "trigin7", "trigger_input7": Output is assigned to Trigger Input 8. |
| 16 | "low": Output is set to low. |
| 17 | "high": Output is set to high. |
/dev..../sgchannels/n/oscs/n/freq ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | Hz |
Frequency control for each oscillator.
/dev..../sgchannels/n/output/delay ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | s |
This value adds a delay to both the signal and trigger/marker outputs.
/dev..../sgchannels/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..../sgchannels/n/output/on ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Enables the Signal Output.
/dev..../sgchannels/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..../sgchannels/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..../sgchannels/n/output/rflfpath ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Switch between RF and LF output path.
| 0 | "lf": LF path is used. |
| 1 | "rf": RF path is used. |
/dev..../sgchannels/n/outputrouter/enable ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Enable outputrouter module
| 0 | "off": Output-router disabled |
| 1 | "on": Output-router enabled |
/dev..../sgchannels/n/outputrouter/overflowcount ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
Indicates the number of overflow events in the output-router of the corresponding channel within intervals of 200 ms. An overflow condition results in clipping of the output signal.
/dev..../sgchannels/n/outputrouter/routes/n/amplitude ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | None |
Configure amplitude of route. Selected signal (source) is multiplied with amplitude and phase, and summed with other routes on SG-channel's output.
/dev..../sgchannels/n/outputrouter/routes/n/enable ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Enable/disable route.
| 0 | "off": OFF: Route inactive |
| 1 | "on": ON: Route active |
/dev..../sgchannels/n/outputrouter/routes/n/phase ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | deg |
Configure phase of route. Selected signal (source) is multiplied with amplitude and phase, and summed with other routes on SG-channel's output.
/dev..../sgchannels/n/outputrouter/routes/n/source ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Select AWG channel source as input to the outputrouter.
/dev..../sgchannels/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..../sgchannels/n/pipeliner/commit ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Commit node data in staging area to queue of sequence pipeliner.
/dev..../sgchannels/n/pipeliner/enable ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Enable execution of sequences in pipeline.
/dev..../sgchannels/n/pipeliner/idcurrent ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
ID of sequence in staging area.
/dev..../sgchannels/n/pipeliner/idrunning ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
ID of executed sequence.
/dev..../sgchannels/n/pipeliner/maxslots ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
Maximum number of available slots in the sequence pipeliner queue.
/dev..../sgchannels/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..../sgchannels/n/pipeliner/ready ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
Indicates whether a sequence can be committed to the pipeliner.
/dev..../sgchannels/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..../sgchannels/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..../sgchannels/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..../sgchannels/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..../sgchannels/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..../sgchannels/n/sines/n/freq ¶
| Properties: | Read |
| Type: | Double |
| Unit: | Hz |
Indicates the frequency of the sines generator.
/dev..../sgchannels/n/sines/n/harmonic ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Multiplies the sine signals's reference frequency with the integer factor defined by this field.
/dev..../sgchannels/n/sines/n/i/cos/amplitude ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | None |
Sets the peak amplitude of the cosine component on the I signal path.
/dev..../sgchannels/n/sines/n/i/enable ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Enables the sine signal to the I signal path.
/dev..../sgchannels/n/sines/n/i/sin/amplitude ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | None |
Sets the peak amplitude of the sine component on the I signal path.
/dev..../sgchannels/n/sines/n/oscselect ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Select oscillator for generation of this sine signal.
/dev..../sgchannels/n/sines/n/phaseshift ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | None |
Phase shift applied to sine signal.
/dev..../sgchannels/n/sines/n/q/cos/amplitude ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | None |
Sets the peak amplitude of the cosine component on the Q signal path.
/dev..../sgchannels/n/sines/n/q/enable ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (64 bit) |
| Unit: | None |
Enables the sine signal to the Q signal path.
/dev..../sgchannels/n/sines/n/q/sin/amplitude ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | None |
Sets the peak amplitude of the sine component on the Q signal path.
/dev..../sgchannels/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..../sgchannels/n/synthesizer ¶
| Properties: | Read |
| Type: | Integer (64 bit) |
| Unit: | None |
Index of synthesizer mapped to this channel.
/dev..../sgchannels/n/trigger/delay ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | s |
This delay adds an offset that acts only on the trigger/marker output. The total delay to the trigger/marker output is the sum of this value and the value of the output delay node.
/dev..../sgchannels/n/trigger/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..../sgchannels/n/trigger/level ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | V |
Defines the analog Trigger level.
/dev..../sgchannels/n/trigger/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.
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/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/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/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.
SYNTHESIZERS¶
/dev..../synthesizers/n/centerfreq ¶
| Properties: | Read, Write, Setting |
| Type: | Double |
| Unit: | Hz |
The Center Frequency of the synthesizer.
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/digitalmixer/reset/all ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Writing to this node clears all digital mixer NCOs of the instrument.
/dev..../system/digitalmixer/reset/mode ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Configure the NCO reset mode.
| 0 | "manual": In manual mode the instrument does not automatically reset NCOs when switching a channel from LF to RF mode. |
| 1 | "auto": In automatic mode the instrument automatically resets the NCOs of all channels whenever a channel is switched from LF to RF, in order to restore alignment. |
/dev..../system/digitalmixer/reset/select ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Writing a bit mask to this node triggers a digital mixer NCO reset of the selected (bit value: 1) channels.
/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/mac ¶
| Properties: | Read |
| Type: | String |
| Unit: | None |
Current MAC address of the device network interface.
/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/triggerdelays/automatic ¶
| Properties: | Read, Write, Setting |
| Type: | Integer (enumerated) |
| Unit: | None |
Enables the instrument to automatically adjust trigger delays to maintain output alignment
| 0 | "off": No trigger delays are tuned automatically. The user has to manually align the channel outputs. |
| 1 | "on": The instrument will set the required trigger delay based on configuration |
/dev..../system/update ¶
| Properties: | Read, Write |
| Type: | Integer (64 bit) |
| Unit: | None |
Requests update of the device firmware and bitstream from the dataserver.