Allen-Bradley 1771-IBD Digital Input Module

Description

The Allen-Bradley 1771-IBD Digital Input Module is a high-performance discrete input component belonging to the classic 1771 series I/O system for programmable logic controllers (PLCs). Its core function is converting discrete signals from field devices such as buttons, limit switches, proximity switches, and relay contacts into logic level signals that PLC processors can recognize and process, enabling effective monitoring and control of industrial processes.

Key technical specifications include an input voltage range of 10-30 VDC, 24 input/16 output I/O points, and a 32 kbyte program capacity. The module features a modular installation design, with physical dimensions of 23mm x 100mm x 120mm and a weight of approximately 0.4 kg, and runs on firmware version V2.2.0. Its compact form factor allows seamless integration into existing 1771 series I/O setups, making it suitable for a wide range of industrial automation applications, including manufacturing line control, process monitoring, and equipment status tracking in harsh industrial environments.