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NI-DAQmx:NI-DAQmx is National Instruments' current-generation data acquisition driver. NI-DAQmx incorporates an entirely new driver architecture and API, complete with new VIs/functions and development tools for controlling National Instruments DAQ devices. NI-DAQmx is entirely separate from the Traditional NI-DAQ driver. The architectural changes and new features allow NI-DAQmx to deliver increased ease-of-use and improved performance over the Traditional NI-DAQ driver. Please refer to the
DAQ Getting Started Guide for more information on NI-DAQmx.
NI-DAQ:The very first multifunction DAQ driver was simply called NI-DAQ. This driver continued to version 6.9.3. Due to architecture changes, it was decided that NI-DAQ was to be replaced with NI-DAQmx as the future driver for our multifunction DAQ boards. This is where a split occurred in our drivers. NI-DAQ was split into DAQmx and Traditional NI-DAQ. DAQmx was built to support our new multifunction boards and Traditional NI-DAQ was created to continue to support customers that had developed applications on NI-DAQ, See below for more details on Traditional NI-DAQ and DAQmx.
Traditional NI-DAQ (Legacy):NI-DAQmx replaced Traditional NI-DAQ (Legacy) in 2003. NI strongly recommends using NI-DAQmx for new designs and migrating existing Traditional NI-DAQ (Legacy) applications to NI-DAQmx. Please review the
Getting Started with NI-DAQmx guide for more information on migration.
The Traditional NI-DAQ driver is essentially an upgrade of the previous version of NI-DAQ, NI-DAQ 6.9.3. The Traditional NI-DAQ application programming interface (API) contains the same VIs/functions as NI-DAQ 6.9.3 and is nearly identical in operation. However, the architecture of the Traditional NI-DAQ driver has been updated so that it can be used along with the new NI-DAQmx driver in the same application. Additionally, some devices supported by NI-DAQ 6.9.3 are no longer supported in Traditional NI-DAQ. Please also refer to the DAQ Quick Start Guide which can be found by going to
Start »Program Files » National Instruments » NI-DAQ » DAQ Getting Started Guide. The most recent version of Traditional NI-DAQ is 7.5.