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The following devices support Sample Clock timing for time-based measurements of digital signals, such as frequency, period, and two-edge separation measurements. Bus-powered M Series USB devices Parallel ...

Some SCXI modules also have internal channels. These are physical channels that are not accessible from an I/O connector. To measure the signals present at these internal physical channels, use them to ...

The following devices can run multiple tasks simultaneously on some subsystems. NI 4302, 4303, 4304, 4305, 4339, 4340, 4463, and 4464 NI 6533 and 6534 cDAQ-9132, 9133, 9134, 9135, 9136, 9137, 9174, 9178, ...

To achieve maximum performance and synchronization, synchronize all analog input channels across modules or output channels across modules by combining them into a single task to create a multidevice task. ...

S Series and X Series simultaneous sampling devices use simultaneous sampling. M Series, E Series, all other X Series devices use multiplexed sampling. C Series devices in CompactDAQ chassiscDAQ-9171, ...

If you have multiple devices that support the IEEE 802.1AS standard, you can use Start Trigger synchronization to trigger at a specific time. These devices must either be connected through a daisy chain ...

This can be configured in a task through the DAQmx Channel Property SyncUnlockBehavior, which defaults to StopTaskAndError, and can be disabled by setting the value to IgnoreLostSyncLock. If IgnoreLostSyncLock ...

Internal Channel Name Description _cjtemp A differential terminal with the positive terminal connected to the onboard temperature sensor and the negative terminal connected to the ground reference for ...

Network-synchronized devices include the following devices: cDAQ-9185, and 9189. FD-11601, FD-11603, FD-11605, FD-11613, FD-11614, FD-11634, and FD-11637. cRIO-9040, 9041, 9042, 9043, 9045, 9046, 9047, ...

The timestamp resources will be used to provide an accurate t0 for waveform reads with timed acquisitions that will correspond to the first sample clock for Analog Input and Digital Input tasks. Therefore, ...

Sampling Rate Considerations For the FD-11613 and FD-11614, if the sampling rate of a hardware-timed acquisition exceeds the maximum sampling rate of the module, the most recently acquired sample may be ...

This section contains information about timing for AO Series, C Series, DSA, E Series, FieldDAQ, M Series USB, NI ELVIS II Family, S Series, and SC Express devices.

While Standalone NI CompactDAQ systems, such as the NI cDAQ-9132, 9133, 9134, 9135, 9136, and 9137 can be programmed with and run the LabVIEW Real-Time Module, the hardware and software architecture is ...

The cDAQ-9132, 9133, 9134, 9135, 9136, 9137, 9174, 9178, 9179, 9184, 9185, 9188, 9188XT, and 9189 chassis provide three timing engines for analog input. Multiple timing engines allow those chassis to run ...

The following table lists the internal channel for the USB-9211 device. Internal Channel Name Description _cjtemp A differential terminal with the positive terminal connected to the onboard temperature ...

On an X Series device, you can either acquire a signal present on the I/O connector, or you can acquire a signal that is being generated from the internal calibration multiplexer. The channels available ...

On an X Series device, you can either acquire a signal present on the I/O connector, or you can acquire a signal that is being generated from the internal calibration multiplexer. The channels available ...

You can access Common Application on ni.com or in the NI-DAQmx Help file installed with NI-DAQmx. Common Application covers the following measurement applications: Acceleration Frequency (Analog) Angular ...

To run examples without hardware installed, you can use an NI-DAQmx simulated device. In MAX, refer to the Measurement & Automation Explorer Help for NI-DAQmx by selecting HelpHelp TopicsNI-DAQmx for information ...

IEEE P1451.4 is an emerging standard for adding plug and play capabilities to analog transducers. The underlying mechanism for plug and play identification is the standardization of a Transducer Electronic ...

Installation and Configuration Refer to the DAQ Getting Started Guide for general installation and configuration instructions. Use the following resources if you have problems installing your DAQ hardware ...

Thermocouples are the most commonly used temperature sensors. A thermocouple is created when two dissimilar metals touch and the contact point produces a small open-circuit voltage that corresponds to ...

Use the 3-wire resistance method, as shown in the following figure, to measure resistance on resistors that have three lead wires. The 3-wire method uses three test leads, one pair for the excitation current ...

A two pulse encoder is a position measurement sensor that has two channels, A and B. When the encoder is moved, either signal A or signal B on the encoder pulses. A pulse on signal A represents a movement ...

An accelerometer, a sensor that represents acceleration as a voltage, comes in two axial types. The most common accelerometer measures acceleration along only a single axis. This type is often used to ...

Use the Write TEDS Data function/VI to write data to a TEDS sensor. The TEDS data must be in a virtual TEDS file or in a bitstream constructed according to the IEEE 1451.4 specification. National Instruments ...

Encoders typically use a third signal for Z indexing, which produces a pulse at fixed positions that you can use for precise determination of a reference position. For instance, if the Z index is 45° for ...

The output of bridge-based sensors is relatively small. For example, most strain gage bridges and strain-based transducers output less than 10 mV/V, or 10 millivolts of output per volt of excitation voltage. ...

Clock accuracy describes how well the actual frequency of the clock matches the specified frequency. An oscillator generates a clock. However, an oscillator never generates a perfect frequency. The accuracy ...

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