Allen-Bradley 1756-L1 ControlLogix 5550 Controller Module

Ubest Automation offers the reliable Allen-Bradley 1756-L1, a powerful ControlLogix 5550 processor module. This versatile PAC (Programmable Automation Controller) is perfect for medium-scale automation tasks. It features 64 KB user memory and supports communication over popular networks like EtherNet/IP, ControlNet, and DeviceNet. Installation is simple: just plug it into any slot in a compatible ControlLogix chassis.

Technical Data

Here are the key specifications for the 1756-L1:

• Brand: Allen-Bradley
• Model/Part Number: 1756-L1 (Complete Suffix Information)
• Series: ControlLogix
• Module Type: Processor Module
• User Memory: 64 KB
• Communication Port: One (1) RS232
• I/O Capacity: Up to 128,000 Discrete / 4,000 Analog
• Operating Temperature: 0 to 60 °C (32 to 140 °F)
• Power Dissipation: 3.3 Watts (Average)
• Backplane Current: 0.65A @ 5V DC; 0.02A @ 24V DC

Installation Guide

Installing the 1756-L1 is straightforward. You can directly insert it into any available slot of a compatible ControlLogix chassis (e.g., 1756-A4, 1756-A7). Multiple controllers can be installed in the same chassis. Module power is supplied directly through the backplane from the system power supply.

Compatibility Notes

The 1756-L1 works seamlessly with:

• Chassis: 1756-A4, A7, A10, A13, A17
• Memory Modules: 1756-M1, 1756-M2, 1756-M3
• Battery: 1756-BA1 (0.59g Lithium)
• Programming Cables: 1756-CP3, 1747-CP3 (Category 3 Serial)
• I/O Systems: ControlLogix I/O, Flex I/O, POINT I/O

Packaging & Warranty

Each unit comes with the module itself. We ship via FedEx, UPS, and DHL for fast delivery. This product is backed by our 12-month warranty for your peace of mind.

Need more details? Download the complete specification sheet here.

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