The Allen-Bradley 1756-L85E is a high-performance standard controller from the ControlLogix 5580 series, developed by Rockwell Automation for demanding industrial automation applications. It supports Ethernet communication speeds of 10 Mbps, 100 Mbps, and 1000 Mbps, providing flexible and fast network connectivity. The 1756-L85E can execute up to 32 tasks simultaneously and handle as many as 1000 programs per task, ensuring robust multitasking performance. With an impressive 40 MB of user memory—the largest among the ControlLogix 5580 controllers—it delivers exceptional processing capacity for large-scale control systems. Designed for open installation without an enclosure, the controller operates reliably within an ambient temperature range of 32 to 140 °F (0 to 60 °C) and 5–95% non-condensing relative humidity.