1785-L40E Allen-Bradley Allen-Bradley

Allen-Bradley 1785-L40E | PLC-5/40E Ethernet Processor with 48K Words Memory and 2048 I/O Capability Overview The Allen-Bradley 1785-L40E is a high-performance Ethernet-enabled processor from the PLC-5/40E series, designed for complex and scalable automation systems. With 48K words of user memory and support for up to 2048 digital I/O points, it is ideal for applications requiring fast data handling, Ethernet/IP connectivity, and integration with ControlNet and DH+ networks. It features two onboard serial ports and battery-backed RAM for data retention. Key Features User Memory: 48K words I/O Capacity: Up to 2048 digital I/O points Network Connectivity: Built-in 10Base-T Ethernet port for peer-to-peer communications ControlNet, DH+, and Remote I/O (via communication adapters) Programming Options: Remote programming over Ethernet Serial Ports: 2 RS-232 serial communication ports Battery Backup: Maintains user program during power loss Instruction Set: Advanced math, PID, data handling, sequencer Chassis Compatibility: Installs in 1785 PLC-5 chassis Technical Specifications Catalog Number: 1785-L40E Memory: 48K words Max I/O: 2048 digital or 1536 digital + 512 analog Communication: Ethernet, 2 x RS-232 Battery Type: Lithium (field-replaceable) Mounting: Rack-mount in PLC-5 chassis Operating Temp: 0°C to 60°C (32°F to 140°F) Certifications: UL, CE, CSA, Class I Div 2 Applications Large-scale industrial automation systems Plant-wide Ethernet network integration Legacy system maintenance and upgrades Water treatment plants, oil & gas, food & beverage Data-intensive process control applications Why Choose the 1785-L40E? Ethernet Built-In: Simplifies integration into modern networks Robust Memory and I/O: Supports complex applications with large I/O needs Legacy Support: Ideal for maintaining or upgrading PLC-5 systems Remote Capabilities: Program and monitor over Ethernet Reliable Design: Trusted Allen-Bradley platform for critical control Order Now The 1785-L40E processor is available and ready for global shipping.