The Allen-Bradley 1771-NIV is a versatile high-resolution analog input module designed to integrate seamlessly with the 1771 product series. It features eight input channels suitable for +/-5V or +/-20mA signals with a 16-bit resolution, ensuring precise data acquisition. Compatible with PLC3 and PLC5 controllers, it boasts a robust input impedance exceeding 10 megaohms and provides continuous overvoltage protection up to 140V AC RMS. Data transfer is efficiently managed via Block Transfer Write and Read instructions, while the module's status is easily monitored using its RUN/FLT and CAL/COM indicators. With its operating temperature range from 0 to 60 degrees Celsius, the 1771-NIV is a reliable choice for demand-driven industrial applications, offering critical input filtering and extensive calibration options.