Allen-Bradley 1785-L80E PLC5 Programmable Logic Controller

Product Overview

The Allen-Bradley 1785-L80E is a powerful PLC5 programmable logic controller. It handles large automation tasks with ease. This controller provides 100K words of user memory. It supports up to 3072 I/O points in any mix. The 1785-L80E uses a 1770-XYC battery module for memory backup. You can also add memory modules like 1785-ME16, 1785-ME32, 1785-ME64, or 1785-M100. Its embedded ports include one Ethernet, two DH+/Remote I/O, and one serial port. These ports enable flexible communication. The controller operates in 0 to 60 °C temperatures. It meets shock and vibration standards. This makes it reliable for demanding environments.

Application Scenarios

The 1785-L80E fits large industrial applications. Use it for discrete and analog control. It supports PID algorithms for process control. This controller manages distributed I/O systems. It works with 1771 I/O chassis and modules. Applications include manufacturing, material handling, and assembly lines. The controller handles up to 93 I/O racks. It can control up to 32 remote I/O chassis per link. Ideal for complex automation with high I/O counts.

Technical Specifications

Memory: 100K words SRAM user memory. Battery-backed static RAM. EEPROM backup via memory modules.

I/O Capacity: Max 3072 total I/O (any mix) or 3072 in + 3072 out complementary. Max analog I/O 2048.

Scan Time: 0.5 ms for extended-local I/O adapter. 10 ms at 57.6 kbps remote I/O. 3 ms at 230.4 kbps remote I/O.

Communication Ports: 1 Ethernet (15-pin), 2 DH+/Remote I/O combo, 1 RS-232-C/422-A/423 serial.

Power: Draws 3.6A at 5 VDC backplane. Dissipates 65 BTU/hr (17.3W).

Environment: 0–60 °C operating, 5–95% non-condensing humidity. Shock 30G, vibration 1G at 10–500 Hz.

Certifications: CSA, C-TICK, CE, UL.

Installation & Maintenance Guide

Install the 1785-L80E in the leftmost slot of a 1771 I/O chassis. Use two screws on top and bottom to secure it. Connect the backplane to a compatible power supply like 1771-P4S or -P6S. For memory backup, install the 1770-XYC battery. Optionally plug in a memory module. Configure communication ports via software. Test the system before operation. Regularly check battery status. Replace battery every 2-3 years. Keep the controller clean and free from dust.

Packing List

One Allen-Bradley 1785-L80E PLC5 controller. Installation manual. No additional cables or modules included. Ship via FedEx, UPS, or DHL.