A-B 1756-L81E
The Allen – Bradley 1756 – L81E is a high – performance controller module belonging to the ControlLogix family. It is designed for a wide range of industrial automation applications, capable of handling complex control tasks and coordinating with various peripheral devices.
This module features a built – in Ethernet/IP communication port, enabling seamless connection to industrial networks for data exchange and remote monitoring. It also has a USB client port for local programming and debugging. With 3 MB of user memory, it can store large – scale user programs and data, supporting a variety of programming languages such as relay ladder, structured text, function block, and sequential function chart (SFC)6. This allows engineers to program according to specific application requirements. In addition, the module supports controller redundancy, enhancing system reliability and availability. It can work with other modules in the ControlLogix system to achieve distributed control and monitoring of industrial processes.

Product Parameters
- Memory: 3 MB user memory4.
- Communication Ports: 1 port USB client, single – port Ethernet/IP6.
- Programming Languages: Relay ladder, structured text, function block, sequential function chart (SFC)6.
- Controller Tasks: 32 tasks, 1000 programs per task, event tasks with all event triggers built – in6.
- Redundancy: Full support for controller redundancy in Studio 5000 Logix Designer application version 33 and later6.
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