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Sampling Considerations NI-DAQmx 17.0 Manual NI-DAQmx 17.5 Manual NI-DAQmx 17.6 Manual NI-DAQmx 18.1 Manual NI-DAQmx 18.5 Manual NI-DAQmx 18.6 Manual NI-DAQmx 19.0 Manual NI-DAQmx 19.1 Manual NI-DAQmx ...

January 2018 NI-DAQmx Key Concepts covers important concepts in NI-DAQmx such as channels and tasks. The ways that NI-DAQmx handles timing, triggering, buffering, and signal routing are also central in ...

Deployment refers to developing an application so that it can be distributed, or deployed, on a different computer than the one on which the application was developed. To deploy an application, you need ...

What Is Device Calibration? Device calibration consists of verifying the measurement accuracy of a device and adjusting for any measurement error. Verification consists of measuring the performance of ...

Digital I/O module capabilities depend on the type of digital signals that the module can measure or generate and the chassis the module is used in. The NI 9375, NI 9403, NI 9425, NI 9426, NI 9476, NI ...

To find the device routing table for your device, launch MAX and select Devices and Interfaces. Click a device to open a tabbed window in the middle pane. Click the Device Routes tab at the bottom of the ...

For digital pattern triggering, you configure the device to detect a specific digital pattern on specific physical channels. After detecting this condition, the device performs the action associated with ...

Two NI-DAQmx Read attributes/properties allow you to check for excitation faults. The first is ExcitFaultChansExist. This attribute/property returns a Boolean of true if one or more channels experience ...

This section includes information about deploying applications and using the DAQmx I/O Server for distributed applications.

To ensure the correct behavior of the dynamic averaging method, the minimum and maximum values on the DAQmx Create Virtual Channel VI must be configured before the start of an acquisition. The divisor, ...

FieldDAQ devices include the FD-11603, FD-11613, and FD-11637. Analog Input The following table lists the number and naming of analog input physical channels for FieldDAQ devices. Device Number of Channels ...

The delta-sigma ADCs and DACs on DSA devices, C Series Delta-Sigma devices, and NI 433x devices employ digital filtering that imparts a delay of several sample intervals. The filter delays are equal in ...

The First Sample Timestamp attribute/property can only be enabled for hardware timed tasks, and is enabled by default for Analog Input and Digital Input tasks. For Digital Input tasks as well as C Series ...

Typically, when you use software timing to output samples on multiple AO channels, NI-DAQmx writes a sample to the first DAC, and the sample is generated. Then, NI-DAQmx writes a sample to the second DAC, ...

A single-device route is a connection between two terminals on the same physical device. Before NI-DAQmx, all routes were single-device routes. NI-DAQmx introduces multi-device routing. An example is specifying ...

Skew is a propagation delay that is caused when a signal arrives at two places at different times. For instance, a signal is sent by a controlling device at time T0. A receiving device A acts upon the ...

NI-DAQmx introduces the concept of a sample timing type. Each sample timing type is a different stimulus for triggering the action of producing a sample. When you select a Timing function/VI, you select ...

When you use MAX or the NI-DAQmx API to reset a device, NI-DAQmx sets terminals and output channels to an initialized state. Digital I/O Lines NI-DAQmx sets all digital I/O lines to the configured power-up ...

There are many data processing algorithms to consider when creating a control application. You can create custom control algorithms using LabVIEW. You also can use VIs, such as the LabVIEW Control Design ...

Software triggering starts, stops, or pauses an acquisition or measurement or advances a scan list based on a software trigger command being sent. You generate a software trigger command with the DAQmx ...

A route is a connection between a pair of terminals. The source and destination terminals make a terminal pair. Any time the source or destination terminal of a signal is specified, a route is created. ...

Stability describes how well the clock frequency resists fluctuations. Factors that can cause the frequency to fluctuate include variations in temperature, time (aging), supply voltage, shock, vibration, ...

To explicitly start a task, call the Start Task function/VI. You auto-start a task when you perform some other operation that implicitly starts the task. For instance, calling a Read function/VI or a Write ...

A Start Trigger begins an acquisition or generation. You can configure this trigger to occur on a digital edge, a digital pattern, an analog edge, when an analog signal enters or leaves a window, or at ...

You implicitly transition the task to a new state when you perform an operation that requires that the task be in a specific state and it is not. If this occurs, the task is implicitly transitioned to ...

A subsystem is the circuitry (ADCs, DACs, clocks, triggers, timing signals, timing engines, and so on) that a device uses to acquire or generate samples. On DAQ devices, there are separate subsystems for ...

At very low sample rates, the anti-aliasing filters for AI channels on DSA devices, C Series Delta-Sigma devices, NI 4330, and NI 4331 devices may not completely reject all out-of-band signals. This is ...

Internal Channel Name Description _aignd_vs_aignd A differential terminal with the positive and negative terminals both connected to the ground reference for analog input. _ao0_vs_aognd A differential ...

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