Allen-Bradley 1756-L73S ControlLogix Series Programmable 1756L73S

Description:

The Allen-Bradley 1756-L73S ControlLogix Series Programmable Controller (1756L73S) is used in GuardLogix safety control systems to execute standard and safety control logic within a ControlLogix architecture. Commonly installed in ControlLogix chassis in industrial control panels, process automation systems, and high-performance manufacturing lines where integrated safety and standard control are required. Maintenance teams, OEMs, and system integrators use this controller for system upgrades, safety retrofits, controller replacement, and implementing SIL-rated safety applications. 

Applications:

The 1756-L73S controller is widely used in industrial environments that require integrated safety and motion control, including automotive manufacturing, material handling systems, robotic cells, and process industries. It enables coordinated control of standard I/O and safety devices such as safety relays, light curtains, emergency stops, and safety drives, supporting compliance with functional safety standards.

Technical Specifications:

• Manufacturer: Allen-Bradley (Rockwell Automation)
• Model / Part number: 1756-L73S
• Product type: GuardLogix safety controller
• Series: ControlLogix
• User memory: 8 MB standard memory
• Safety memory: Dedicated safety memory
• Communication: EtherNet/IP and ControlNet compatible (with modules)
• Mounting: 1756 ControlLogix chassis slot
• Programming software: Studio 5000 Logix Designer
• Application environment: Industrial automation and safety systems

Common Replacements:

• Allen-Bradley 1756-L74S
• Allen-Bradley 1756-L73
• Siemens 6ES7517-3FP00-0AB0