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NI PXI-6115 is a multifunctional data collection module belonging to the PXI series of National Instruments (NI) products. The following is a product introduction about the NI PXI-6115 module:
High performance data collection: The NI PXI-6115 module provides high-performance analog input and output functions. It has a 16 bit resolution analog input channel and a sampling rate of up to 400 kS/s. At the same time, the module also provides 8 analog output channels, which can output analog signals at a rate of 100 kS/s.
Multi channel support: The NI PXI-6115 module has 16 single ended or 8 differential analog input channels, as well as 8 analog output channels. This multi-channel design makes this module suitable for applications that require simultaneous acquisition of multiple signals or output of multiple analog signals.
Flexible input and output modes: The NI PXI-6115 module supports multiple input and output modes. It can collect analog signals in a single ended or differential manner, and different input and output modes can be selected through software configuration to adapt to different application requirements.
Powerful signal processing capability: The NI PXI-6115 module has built-in rich signal processing functions, including filtering, sampling timing, triggering functions, etc. These functions enable users to process and analyze the collected signals in real-time to meet complex application requirements.
Flexible software development environment: The NI PXI-6115 module supports NI’s LabVIEW programming environment, as well as other common programming languages such as C, C++, Python, etc. This way, users can choose a suitable software development environment for application development based on their preferences and familiarity.
PXI standard compatibility: The NI PXI-6115 module adopts the PXI standard slot design and can form a complete testing and measurement system with other PXI modules and instruments. This standardized design makes module installation and configuration more convenient, and provides good system compatibility and scalability.

NI PXI-6722 is a digital control board module belonging to the PXI series of National Instruments (NI). The following are product details about the NI PXI-6722 module:
Digital input/output function: The NI PXI-6722 module provides 32 digital input/output channels. These channels can be configured as single ended input or output and support multiple voltage standards such as TTL, CMOS, and LVTTL. The module also provides voltage protection for 32 digital input/output lines, protecting the equipment from adverse effects such as overvoltage and electrostatic discharge.
High speed operation: The NI PXI-6722 module has high-speed operation capability and supports a maximum output rate of 10 MHz. It can output digital signals in the form of fixed frequency or timed pulses to meet the needs of fast control and data acquisition applications.
Flexible triggering function: This module has multiple triggering methods, including software triggering, hardware triggering, and external triggering. Users can configure trigger conditions as needed to ensure that the module performs corresponding actions when specific events occur.
Synchronous operation and multi module expansion: The NI PXI-6722 module supports multi module synchronous operation and can form a more scalable system with other PXI modules or NI hardware devices. This way, users can achieve more complex control and data collection tasks through the collaborative work of multiple modules.
Software support and development environment: The NI PXI-6722 module is compatible with NI’s software development platform, including LabVIEW, LabWindows/CVI, and Measurement Studio. These tools provide a rich library of features and easy-to-use programming interfaces to help users quickly develop and deploy applications.
PXI standard compatibility: The NI PXI-6722 module complies with the PXI standard and can be inserted into any PXI compliant slot. This standardized design ensures interoperability of modules and system scalability.