The Allen-Bradley 1756-L73 ControlLogix controller is a flagship processor engineered for demanding industrial automation environments, delivering robust performance with 4 MB of user memory and 10 MB of non-volatile storage. This controller excels in complex multi-discipline applications, supporting up to 128 local I/O modules per chassis and coordinating with remote racks via ControlNet, EtherNet/IP, or DeviceNet. Its native support for motion control via SERCOS interface and high-speed backplane data exchange ensures precise synchronization in packaging, material handling, and process control systems. Designed for scalability, the 1756-L73 integrates seamlessly with redundant power supplies and communication modules, providing a future-proof foundation for plant-wide automation. Below is the detailed technical specification table for this model.
| Parameter |
Specification |
| Model Number |
1756-L73 |
| Product Series |
ControlLogix |
| Processor Type |
Single-core, 32-bit RISC |
| User Memory |
4 MB (for logic and tags) |
| Non-Volatile Storage |
10 MB (for project data and recipes) |
| Maximum I/O Capacity |
128 local modules per chassis; 4,000+ remote I/O points |
| Backplane Data Rate |
480 Mbps (ControlLogix backplane) |
| Communication Protocols |
EtherNet/IP, ControlNet, DeviceNet (via modules) |
| Motion Support |
SERCOS interface (up to 16 axes) |
| Redundancy Support |
Yes (with 1756-RM2 module) |
| Power Supply Requirements |
24V DC, 1.5 A (typical) |
| Operating Temperature |
0 to 60 °C (32 to 140 °F) |
| Storage Temperature |
-40 to 85 °C (-40 to 185 °F) |
| Relative Humidity |
5% to 95% non-condensing |
| Certifications |
CE, UL, cUL, ATEX (Zone 2), IECEx |
| Dimensions (H x W x D) |
5.25 x 1.75 x 4.50 in (13.3 x 4.4 x 11.4 cm) |
| Weight |
1.2 lb (0.54 kg) |
| Warranty |
1 year (extendable) |
What Does Our Clients Say
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Laura Navas
Great product!
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Original and fast!
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