Allen-Bradley 1747-L511 SLC 500 Analog Input Module

Allen-Bradley 1747-L511 is a SLC 5/01 CPU for the SLC 500 family, delivering 1 KB of user memory and DH-485 communications to coordinate a compact control program and data exchange across a DH-485 network, while drawing power from a 1746-P1 to 1746-P7 supply and serving as the central processing unit in its rack-based automation setup. Although marketed as part of the SLC 500 family, the 1747-L511 is not an analog input module; it functions as the controller that executes the PLC program and manages communications with DH-485 devices, making it a legacy CPU option for systems that rely on the 1747-series hardware. Rockwell Automation lists the 1747-L511 as discontinued as of January 31, 2017, with a replacement category of Functional Replacement, indicating the product is no longer sold new and that customers should consider supported alternatives when planning upgrades or repairs.