Allen-Bradley 1761-L20BWA-5A Programmable Logic Controller

Allen-Bradley 1761-L20BWA-5A MicroLogix 1000 is a compact 20‑point programmable logic controller designed for small‑footprint automation tasks. It provides a 20‑point I/O footprint with 12 digital inputs operating at 24V DC and eight relay outputs, enabling straightforward interfacing to sensors, switches, and actuators in compact panels or standalone control boxes. The module houses 1K words of nonvolatile EEPROM memory for the control program and data, equivalent to roughly 737 instruction words and 437 data words, supporting ladder logic and basic data handling for reliable, low‑cost control. As a member of the MicroLogix 1000 family, this model is suitable for simple sequencing, motor control, and basic automation tasks in machinery such as conveyors, feeders, and light duty automation lines, where compact size and simple wiring are advantageous. The -5A variant is a common example within legacy automation ecosystems, and this controller can be interfaced with standard Rockwell programming tools for development and maintenance.