1761-L32AWA | Allen-Bradley MicroLogix 1000 120/240VAC, 20-In-120VAC/12-Relays

The 1761-L32AWA is a compact Programmable Logic Controller (PLC) from the MicroLogix 1000 family, designed for small-scale automation systems. It combines a processor, input/output modules, and power supply in one unit, making it ideal for space-constrained applications. It is commonly used in machine control, process automation, and standalone logic operations. With its built-in 1K EEPROM memory, it supports a variety of instructions for flexible automation logic.

The controller has a compact form factor with dimensions of 7.87 inches (200 mm) in length, 2.87 inches (73 mm) in depth, and 3.15 inches (80 mm) in height. These dimensions make it well-suited for installations where panel space is limited. It can be mounted horizontally or vertically, depending on the layout of the control cabinet. Adequate clearance should be provided on all sides to ensure proper ventilation.

The standard 1761-L32AWA model only supports discrete AC inputs and relay outputs. It is not natively equipped for analog input or output without additional interface devices. For applications requiring analog control, other MicroLogix models or add-on analog modules are recommended. However, the relay outputs are flexible and can switch analog signals from external transducers or control circuits.

The 1761-L32AWA controller has an approximate shipping weight of 0.91 kilograms (2.0 pounds), making it a lightweight and compact device suitable for space-constrained control panels. Despite its modest weight, it integrates 32 I/O points, an embedded RS232 communication port, and a built-in power supply, offering a powerful solution in a small form factor. This low weight also simplifies installation, especially in mobile or modular systems where overall weight is a consideration. When planning for mounting, both weight and physical clearance requirements should be taken into account to ensure proper heat dissipation and ease of maintenance.

The 1761-L32AWA is part of the MicroLogix 1000 family, which has been discontinued by Rockwell Automation. Although it is no longer in active production, it is still available as surplus or refurbished equipment through select industrial automation suppliers. For new applications, Rockwell recommends transitioning to newer platforms such as MicroLogix 1100 or 1400, or CompactLogix controllers. These alternatives provide enhanced functionality and ongoing support.