Why am I seeing crosstalk when sampling multiple channels with National Instruments Data Loggers?
Crosstalk or ghost voltages when sampling multiple channels can occur due to charge injection. To resolve this, use a voltage follower with operational amplifiers (op-amps) with unity gain for each high-impedance source before connecting to an X Series device. Also, decreasing the sample rate for each channel may help.
What to do if I see glitches on the output signal of National Instruments Data Loggers?
Glitches are normal when a DAC switches from one voltage to another. You can build a lowpass deglitching filter to remove some of these glitches.
What to do if National Instruments Data Loggers readings are random and drift rapidly in differential analog input ground-reference mode?
Random and drifting readings in differential analog input ground-reference mode may be due to incorrect ground-reference connections. Check the ground-reference connections. It can also happen if you float reference signal, so reference the signal to the same ground level as the device reference.
General| Analog Input Channels | 16 |
|---|---|
| Max Sample Rate | 2 MS/s |
| Resolution | 16-bit |
| Digital I/O Channels | 24 |
| Counter/Timer Channels | 4 |
| Analog Output Channels | 2 |
| Analog Output Resolution | 16-bit |
| Digital I/O Compatibility | TTL |
| Input Range | +/- 10 V |
| Bus Type | PCIe |
| Operating System Compatibility | Windows, Linux |
Precautions for safe operation and handling of NI 63xx devices, including EMC and symbol definitions.
Covers installing, unpacking, self-calibrating, mounting, and connecting X Series USB devices.
Reference to appendix for pinouts and device specifications, plus accessory information.
Details on DAQ hardware architecture and the DAQ-STC3 digital engine for X Series devices.
Information about the device's internal calibration circuitry for correcting gain and offset errors.
Overview of available cables, connector blocks, and accessories for X Series devices.
Guidance on using NI-DAQmx driver software for programming DAQ devices.
Detailed description of signals found on the I/O connectors of X Series devices.
Information on the +5V power source and USER 1/2 connections.
Explanation of the behavior of the READY and ACTIVE LEDs on USB X Series devices.
Covers analog input circuitry, terminal configurations, ranges, and voltage limits.
Explains acquisition methods and input triggering actions for analog signals.
Guidance on connecting signals, including floating and ground-referenced sources.
Details on AI sample clock, convert clock, and other timing signals.
Overview of AO circuitry, including DACs, FIFO, and reference selection for output range.
Strategies for minimizing output glitches and details on generation methods.
Covers start/pause triggers and timing signals for analog output operations.
Overview of digital I/O, acquisition methods, and triggering for digital inputs.
Details on acquiring and generating digital waveforms, including clock signals.
Covers triggering and generation methods for digital outputs.
Information on detecting digital changes and applying programmable filters.
Covers counter timing, input applications like edge counting, and pulse/frequency measurements.
Details counter output applications such as pulse generation and timing signal configurations.
Information on counter triggering actions and features like cascading and prescaling.
Covers using PFI terminals for routing external timing input and output signals.
Configuration of PFI terminals for static digital operations and detecting digital changes.
Details on applying filters to PFI signals and protecting I/O lines.
Overview of clock routing circuitry, timebases, and external clock synchronization.
Methods for synchronizing devices across PXI Express, PCI Express, and USB platforms.
Details on RTSI signals, PXI/PXI Express clock/trigger signals, and PXI_STAR/PXIe_DSTAR.
Introduction to data transfer methods across PCI Express, PXI Express, and USB.
Details DMA and Programmed I/O for PCI Express/PXI Express data transfer.
Details USB Signal Stream and Programmed I/O for USB data transfer.
Configuring triggers using digital signals and analog sources like AI channels or APFI.
Details actions affected by analog triggers and different trigger modes like edge, hysteresis, and window.
Tips for enhancing analog trigger accuracy using AI channels and software calibration.
Pinout diagram, specifications, and accessory information for the NI 6320 device.
Pinout diagrams and specifications for NI 6345/6355 devices.
Pinout details for the NI USB-6349 Screw Terminal device.
Pinout details for the NI PXIe-6375 device.
Where to find example programs, NI-DAQmx help, and X Series device specifications.
Guides for LabVIEW, LabVIEW NXG, LabWindows/CVI, and Microsoft Visual Studio.
Resources for developing instrumentation applications using ANSI C with NI-DAQmx.
Solutions for common analog input issues such as crosstalk and improper grounding.
Troubleshooting common analog output glitches and counter signal connection problems.
Information on global services, training, and technical support offered by NI.
Details on hardware services, calibration, and partner integration support.
Information on NI training programs and technical support resources.
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