Part Number: 785065-01

The National Instruments 785065-01, also known as the cDAQ-9189, is a robust 8-slot CompactDAQ Ethernet chassis designed for distributed sensor measurement systems. This chassis enables users to create customized configurations by integrating a variety of C Series I/O modules, facilitating flexible combinations of analog I/O, digital I/O, and counter/timer functions. With the incorporation of Time-Sensitive Networking (TSN), the 785065-01 ensures precise synchronization across networked measurements, making it ideal for applications requiring long-distance data acquisition. Its integrated network switch simplifies setup, allowing for easy daisy-chaining of multiple devices.

This chassis operates effectively within a voltage input range of 9V to 30V while consuming a maximum power of 16W. With compact dimensions of 10.74 inches by 3.47 inches by 2.45 inches, it is engineered for reliability in various environments, featuring IP40 ingress protection and an operating temperature range of -40°C to 70°C. The sturdy construction of the 785065-01 is well-suited for field and industrial applications that demand dependable performance in harsh conditions.

The 785065-01 supports a broad spectrum of measurement capabilities and includes an input FIFO capacity for analog inputs of 127 samples per slot, with the maximum sample rate dependent on the installed modules. It features a range of internal base clock options—80 MHz, 20 MHz, 13.1072 MHz, 12.8 MHz, 10 MHz, and 100 kHz—ensuring precise timing at a stability of 50 parts per million. Analog output capabilities include hardware-timed tasks with onboard regeneration for up to 16 channels, with the possibility for non-regeneration tasks dictated by the specific C Series modules utilized.

The chassis also provides digital waveform features, including a waveform acquisition FIFO of 511 samples per slot for parallel modules and 63 samples per slot for serial modules. Additionally, it is equipped with four 32-bit general-purpose counters/timers, optimized for applications such as quadrature encoders, PWM control, pulse train generation, edge counting, and pulse width measurements. These counters/timers support a variety of measurement functions with resolutions up to X4 quadrature encoding. The output capabilities comprise pulse generation, dynamic pulse trains, frequency division, and equivalent time sampling, supporting output frequencies from 0 MHz to 20 MHz.