Allen-Bradley 1756-L85E ControlLogix Controller

The Allen-Bradley 1756-L85E ControlLogix Controller is a high-capacity 5580 processor designed for memory-intensive, plant-wide automation tasks where large programs and data sets must be managed reliably. It includes 40 MB of user memory, a USB port for programming and firmware updates, and a built-in 1 gigabit Ethernet port that can support up to 300 EtherNet/IP devices, enabling scalable, high-speed networking across complex manufacturing environments. A front-panel 4-character alphanumeric display provides quick status at a glance and supports on-site diagnostics without a host PC or external tools. As part of the ControlLogix 5580 family, the L85E targets batch and process-control applications where memory, node count, and redundancy capability matter, delivering about 6.2 W power dissipation and a 50 V isolation rating, with 12 MB/s data throughput for controller-to-controller and I/O communications.