Allen-Bradley 1769-L33ER CompactLogix EtherNet Controller

The Allen-Bradley 1769-L33ER CompactLogix EtherNet Controller is a 2 MB user-memory PLC with built-in EtherNet/IP connectivity for industrial automation, enabling reliable, networked control in machines and processes. As a member of the CompactLogix 5370 L3 family, it provides a single 10/100 Mbps EtherNet/IP port for fast data exchange between controllers, distributed 1769 Compact I/O Modules, and other networked devices, all programmable with Studio 5000 Logix Designer. The controller is designed for DIN rail or panel mounting and supports compatibility with 1769 Compact I/O Modules, making it suitable for expanding existing systems or migrating from older CompactLogix models. Operating from 0 to 60 °C (32 to 140 °F), it uses a 1769-BA Lithium Battery. Common production, packaging, conveyor, and material-handling applications benefit from its integrated Ethernet, compact footprint, and straightforward programming workflow. This model is commonly used in automated production lines and process control setups where robust PLC control and Ethernet-based communication are essential. Common replacements in migration paths include 1769-L36ERM and 1769-L32E.