1791-NDV

The Allen Bradley 1791-NDV serves as a compact analog block input/output module designed for versatile applications. It operates at a nominal voltage of 24 volts DC and allows for a selection of up to four inputs and two outputs per block. With a per-channel update rate of 108 milliseconds for inputs, users can expect timely data collection for most applications. In contrast, each output channel provides quick updates every 10 milliseconds.

Operating with an input bandwidth of 5 Hertz, the module is capable of handling low-frequency signals effectively. For enhanced measurement fidelity, it boasts a 14-bit resolution across its range. Additionally, the input common mode rejection ratio is -75 decibels, which contributes to its resilience against noise, ensuring that the system can perform effectively even in electrically noisy environments. The input impedance is set at 10 megaohms, facilitating efficient signal acquisition without significant losses. This module is designed for flexible mounting in either a vertical or horizontal configuration, allowing adaptation to various installation scenarios. Power consumption is rated at a maximum of 11.52 watts, with a thermal dissipation of 39.28 BTUs per hour, making it suitable for most control panel applications. The output impedance is less than 1 ohm, supporting effective load handling while minimizing signal distortion.