B&R Industrial Automation 7AI774-70 Analog Input Module

The B&R 7AI774-70 Analog Input Module delivers multi-channel, high-precision analog signal acquisition for PLC-based automation systems. It accepts voltage and current signals, including 0–10 V, ±10 V, 0–20 mA, and 4–20 mA, across multiple input channels and connects to the PLC backplane for PLC rack- or modular-system installations. Designed for 0°C to 55°C operation and compatibility with B&R automation control systems, this module supports backplane interface and serves applications such as monitoring temperature, pressure, flow, and level in manufacturing lines, HVAC, water and wastewater facilities, chemical processing equipment, and packaging machinery. Common replacements include B&R X20AI7744 and Siemens 6ES7 331-7KF02-0AB0.