Allen-Bradley 1756-L73S Controller Module

Series#: AllenBradley

Product Details

1756-L73S Allen-Bradley ControlLogix GuardLogix Safety Controller – high-performance, integrated safety solution.
Dual-core architecture for simultaneous standard and safety control up to SIL 3 (IEC 61508).
Supports up to 128,000 safety I/O points and 64,000 standard I/O points via ControlLogix backplane.
Built-in Ethernet/IP, DeviceNet, and ControlNet connectivity for seamless integration into existing networks.
Hot-swappable design with redundant power and communication options for maximum uptime.
100% Brand New & Original, securely packed and ready for reliable global shipping.

Specification

The 1756-L73S Allen-Bradley GuardLogix safety controller is a flagship module in the ControlLogix family, engineered for mission-critical applications requiring both standard automation and functional safety up to SIL 3. This controller integrates a powerful 1.2 GHz dual-core processor, enabling deterministic execution of safety routines alongside high-speed standard logic. With its modular form factor and support for redundant I/O and network paths, the 1756-L73S is ideal for industries such as oil & gas, chemical processing, and heavy machinery where fail-safe operation is paramount. It offers native support for Studio 5000 Logix Designer software, simplifying configuration and diagnostics. The unit is supplied with factory firmware preloaded, ensuring plug-and-play deployment in new or existing ControlLogix chassis.

Parameter	Specification
Model	1756-L73S
Manufacturer	Allen-Bradley (Rockwell Automation)
Series	ControlLogix / GuardLogix
Processor Type	Dual-core, 1.2 GHz (Standard + Safety)
Safety Integrity Level	SIL 3 per IEC 61508
Memory – Standard Logic	4 MB
Memory – Safety Logic	2 MB
Maximum I/O – Standard	64,000 points (discrete + analog)
Maximum I/O – Safety	128,000 points
Communication Ports	1 x Ethernet/IP, 1 x ControlNet, 1 x DeviceNet (via backplane)
Backplane Current Draw	1.5 A Standard Models 5.1 V DC
Power Supply Requirement	24 V DC (via chassis power supply module)
Operating Temperature	0°C to +60°C (32°F to +140°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Humidity Range	5% to 95% non-condensing
Vibration Resistance	2 g Standard Models 10-500 Hz
Shock Resistance	30 g, 11 ms half-sine
Safety Certification	TÜV Rheinland, cULus, ATEX Zone 2 (when installed in appropriate enclosure)
Software Compatibility	Studio 5000 Logix Designer v28 or later
Mounting Type	ControlLogix chassis (1756-A series)
Weight	Approx. 0.68 kg (1.5 lbs)
Warranty	2 years (factory standard)