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A DAQmx property node preselected to contain Device class properties. You can select other classes from the node on the diagram.

A DAQmx property node preselected to contain Timing class properties. You can select other classes from the node on the diagram.

Use the DAQmx Physical Channel properties to query information about physical channels. Use the DAQmx Channel properties to configure virtual channels.

A terminal is a named location where a signal is either generated (output or produced) or acquired (input or consumed). A terminal that can output only one signal is often named after that signal. A terminal ...

A DAQmx property node preselected to contain System class properties. You can select other classes from the node on the diagram.

Timing and triggering are important in NI-DAQmx. The clocks section explains clocks and handshaking. The triggering section goes over the triggers—such as a Start Trigger and a Reference Trigger—and common ...

With NI-DAQmx simulated devices, the following timing and triggering considerations exist: NI-DAQmx simulated devices simulate timing for continuous analog input, digital input, and all output tasks. Timing ...

A timing engine is the circuitry a device uses to control an acquisition or generation. Controlling an acquisition or generation includes: Utilizing timing signals to control when the device acquires or ...

Digital I/O and DAQ devices typically use the single-cycle timing response mode, meaning the device responds to an external signal by the next active sample clock edge. Devices that support the pipelined ...

When a task is implicitly transitioned backwards, it returns to the state of the task prior to the last operation that resulted in a forward state transition. For example, if the task was in the Verified ...

In addition to specifying the action you want a trigger to cause, you must select the type of trigger to use, which determines how the trigger is produced. If you need to trigger off an analog signal, ...

During device initialization, all terminals on the I/O connector and trigger buses are tristated. Tristated means the terminal is floating or at high impedance. For the terminal to be driven from the device, ...

When a task is created or loaded, either explicitly or implicitly, it is in the Unverified state. In this state, you configure the timing, triggering, and channel attributes/properties of the task.

For devices that support it, a time trigger pauses an acquisition or measurement at a specific time. If the specified time has already elapsed, you will get an error message indicating the time has already ...

NI-DAQmx checks the timing, triggering, and channel attributes/properties for correctness when the task transitions from the Unverified to the Verified state. You can explicitly perform this transition ...

Filtering is one of the most commonly used signal processing techniques. Signal conditioning systems can filter unwanted signals or noise from the signal you are measuring. Use a noise filter on low-rate, ...

In a floating source, the voltage signal is not connected to any absolute reference or any common ground, such as earth or building ground as shown in the following figure. Floating signal sources are ...

Piezoelectric force sensors are typically used to measure dynamic force events. Such sensors are divided into two main categories: load cells and impact hammers. Piezoelectric load cells measure the amount ...

The full-bridge type I configuration only measures the bending strain. The following figure shows how to position strain gage resistors in a bending configuration for the full-bridge type I. Full-bridge ...

If you route a signal to or from an external device, you might need to invert the polarity of the signal. For example, you may need to change a high gating signal to a low gating one or look at falling ...

The following figure shows how to position strain gage resistors in an axial configuration for the full-bridge type III. The full-bridge type III configuration only measures the axial configuration. Full-bridge ...

In NI-DAQmx 8.0 or later, you can set up distributed applications to combine remote data applications using the NI-DAQmx I/O Server. For instance, you can configure a central computer to monitor other ...

Specifies the level of the lower limit for input limits detection. An input sample outside the upper and lower bounds causes a fault. Note: Fault detection applies to both positive and negative inputs. ...

Specifies the level of the upper limit for input limits detection. An input sample outside the upper and lower bounds causes a fault. Note: Fault detection applies to both positive and negative inputs. ...

Specifies in which unit to return voltage ratios from the channel. Not supported Not supported in VIs that run in a web application Volts/Volt 15896 Volts per volt. mVolts/Volt 15897 Millivolts per volt. ...

Specifies whether to apply the channel calibration to the channel after the expiration date has passed. Not supported Not supported in VIs that run in a web application 2299 attr2299.html

Specifies in ohms the resistance of the wires that lead to the sensor. Not supported Not supported in VIs that run in a web application 17EE attr17EE.html

Specifies the number of bits to return in a raw sample when AI.RawDataCompressionType is set to Lossy LSB Removal. Not supported Not supported in VIs that run in a web application 22D9 attr22D9.html

Specifies the frequency in Hertz that corresponds to the -3dB cutoff of the filter. Not supported Not supported in VIs that run in a web application 1803 attr1803.html

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