LabVIEW Wireless Sensor Network Module

Config Node VI for the NI WSN-3214 Node

  • Updated2023-02-21
  • 4 minute(s) read

Owning Palette: Configuration & Communication VIs

Requires: LabVIEW WSN Module

Configures the WSN node.

Parameter Description
Sample Interval Sets or returns the waveform interval. This is the time between successive waveform acquisitions, in seconds. If set, the new value is immediately applied. The default value is 30.

Possible inputs are:

  • 0.1 to 100000 seconds

For a diagram, see NI WSN-3214 Waveform Parameters.

Sample Interval Mode Specifies whether the host computer for the WSN network or the VI on the WSN node controls the rate at which samples are taken. The default value is VI Driven.

Possible inputs are:

  • Host Driven—Specifies that the host computer for the WSN network controls the sample interval.
  • VI Driven—Specifies that the VI on the WSN node controls the sample interval.
Waveform Sample Rate Specifies the sampling rate in samples per channel per second (SPS/ch)during each waveform. The default value is 10.

Possible inputs are:

  • 1 to max rate that hardware supports (SPS/ch). Sample rates depend on filtering and aperture settings. See sample rates.

For a diagram, see NI WSN-3214 Waveform Parameters.

Samples to Read Specifies the number of samples to read for each waveform, for each configured analog channel. The default value is 10.

For a diagram, see NI WSN-3214 Waveform Parameters.

Powerline Filtering Sets or returns powerline filtering for the node. The default value is Host Driven.

Possible inputs are:

  • Host Driven—For this attribute, use the setting from the host computer.
  • None—Do not reject powerline noise.
  • 50 Hz—Rejects 50 Hz powerline noise.
  • 60 Hz—Rejects 60 Hz powerline noise.
  • 50/60 Hz—Rejects 50 Hz and 60 Hz powerline noise.
Filtering Strength
Note Note  Powerline Filtering must be enabled to use Filtering Strength.

Sets or returns the filtering strength for the node. The default value is Host Driven.

Possible inputs are:

  • Host Driven—For this attribute, use the setting from the host computer.
  • High Rejection—Rejects powerline noise more, at the expense of higher energy consumption.
  • Low Power—Rejects powerline noise, but as energy efficiently as possible.
Aperture Time Specifies the period during which the ADC is reading the input signal. Default is 1.4 ms.

Possible inputs are:

  • 250 us
  • 400 us
  • 750 us
  • 1.4 ms
  • 2.8 ms
  • 5.5 ms
  • 10.8 ms
  • 21.5 ms
Flash.SectorSizeReturns the size of the user memory sector.
Flash.NumberofSectorsReturns the number of user memory sectors available.
Maximum Debug Message SizeReturns the maximum allowable size of debug messages. If you send a debug message that exceeds the maximum size, the message is truncated to the maximum size.
Maximum User Message SizeReturns the maximum allowable size of user messages. If you send a user message that exceeds the maximum size, the message is truncated to the maximum size.
Memory.Current Heap UsageReturns the amount of heap memory currently allocated for the application.

The heap memory is located in RAM. An application running on a WSN node uses the heap memory to store strings, arrays, and clusters. The application uses statically allocated RAM to store numeric values. Right-click the build specification for the application in the Project Explorer window and select Application Information from the shortcut menu to view how much static memory is allocated for the application.
Memory.Maximum Heap Usage Returns the maximum amount of heap memory that the application has allocated.

The heap memory is located in RAM. An application running on a WSN node uses the heap memory to store strings, arrays, and clusters. The application uses statically allocated RAM to store numeric values. Right-click the build specification for the application in the Project Explorer window and select Application Information from the shortcut menu to view how much static memory is allocated for the application.
Memory.Available Heap Returns the amount of free heap memory.

The heap memory is located in RAM. An application running on a WSN node uses the heap memory to store strings, arrays, and clusters. The application uses statically allocated RAM to store numeric values. Right-click the build specification for the application in the Project Explorer window and select Application Information from the shortcut menu to view how much static memory is allocated for the application.
Memory.Total Heap Returns the size of heap memory.

The heap memory is located in RAM. An application running on a WSN node uses the heap memory to store strings, arrays, and clusters. The application uses statically allocated RAM to store numeric values. Right-click the build specification for the application in the Project Explorer window and select Application Information from the shortcut menu to view how much static memory is allocated for the application.
Memory.Current Stack UsageReturns the amount of stack memory currently allocated to the application.

The stack memory is located in RAM. Stack memory stores the parameters and local variables of subVIs. If an application uses more stack memory than is available, the application might crash.
Memory.Maximum Stack UsageReturns the maximum amount of stack memory that the application has used.

The stack memory is located in RAM. Stack memory stores the parameters and local variables of subVIs. If an application uses more stack memory than is available, the application might crash.
Memory.Available StackReturns the amount of free stack memory.

The stack memory is located in RAM. Stack memory stores the parameters and local variables of subVIs. If an application uses more stack memory than is available, the application might crash.
Memory.Total StackReturns the size of stack memory.

The stack memory is located in RAM. Stack memory stores the parameters and local variables of subVIs. If an application uses more stack memory than is available, the application might crash.