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The Allen Bradley 1769-L33ER is a CompactLogix 5370 L3 series programmable automation controller designed for medium-scale industrial automation systems requiring high-speed logic control, dual Ethernet communication, and scalable modular I/O expansion.
It is widely used in industrial environments such as packaging machines, conveyor systems, automotive production lines, material handling systems, and OEM machinery.
The controller provides a balance between processing power, network communication capability, and system expandability, making it suitable for modern machine-level automation architectures.
Compared with lower L3 models, the 1769-L33ER offers higher memory capacity and stronger communication performance, making it suitable for more complex automation tasks.
It is designed for DIN rail mounting and supports 1769 Compact I/O modules, enabling flexible system configuration depending on machine requirements.
| Item | Description |
|---|---|
| Brand | Industrial Automation Controller Manufacturer |
| Product Type | Programmable Logic Controller (PLC / PAC) |
| Product Category | CompactLogix Industrial Controller |
| Main Function | Machine Control & Industrial Automation |
| Communication Protocol | Ethernet/IP |
| Application Fields | Manufacturing, Packaging, Automotive, Logistics |
| Mounting Type | DIN Rail Mount |
| Item | Description |
|---|---|
| Product Series | CompactLogix 5370 L3 Series |
| Controller Family | CompactLogix |
| Architecture Type | Modular Industrial Control Platform |
| Expansion System | 1769 Compact I/O Modules |
| Communication Architecture | Dual Ethernet/IP |
| Programming Software | Studio 5000 Logix Designer |
| Motion Capability | CIP Motion support (limited to system design) |
| Application Level | Medium Industrial Automation Systems |
| Parameter | Details |
|---|---|
| Model | 1769-L33ER |
| Controller Type | CompactLogix Programmable Automation Controller |
| User Memory | 2 MB |
| Nonvolatile Memory | SD card support (1 GB standard, up to 2 GB) |
| Digital I/O | Via 1769 Compact I/O modules |
| Analog I/O | Via 1769 Compact I/O modules |
| Communication Ports | 2 × Ethernet/IP, 1 × USB |
| Ethernet Protocol | EtherNet/IP, TCP/IP |
| Serial Port | Not available |
| Motion Capability | Limited CIP motion capability |
| Maximum I/O Modules | Up to 16 local modules |
| Maximum I/O Banks | Up to 3 banks |
| Ethernet Nodes | Up to 32 nodes |
| Programming Languages | Ladder Logic, ST, FBD, SFC |
| Operating Voltage | 24V DC system power |
| Power Dissipation | Approx. 4.5–6 W |
| Backplane Current | Approx. 5V DC system bus |
| Isolation | 30V continuous insulation (industrial grade) |
| Mounting Type | DIN rail mounting |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Dimensions | 118 mm × 55 mm × 105 mm |
| Weight kg | Approx. 0.65 kg |
| Communication Architecture | Dual Ethernet/IP + USB |
| Firmware Upgrade | Supported |
| Certifications | CE, UL, CSA |
The 1769-L33ER integrates two Ethernet/IP ports supporting industrial communication networks such as linear topology and Device Level Ring (DLR).
This improves system reliability and reduces communication downtime in distributed automation systems.
With 2 MB user memory, the controller can handle more complex logic, multiple routines, and larger tag structures compared to lower L3 models.
This makes it suitable for advanced machine sequencing and multi-machine coordination.
Supports up to 16 Compact I/O modules across multiple banks.
This modular structure allows engineers to scale systems without changing the controller hardware.
The controller is capable of handling multiple tasks simultaneously including logic execution, communication processing, and data exchange.
This ensures stable real-time performance in industrial automation environments.
The USB port provides direct programming and maintenance access, simplifying commissioning and troubleshooting.
Used in automated filling machines, labeling systems, sealing machines, and conveyor-based packaging lines.
Applied in warehouse automation, sorting systems, and material handling networks.
Used in assembly lines, welding stations, and automated inspection systems.
Common in machine builder equipment requiring stable and scalable control architecture.
Used in general manufacturing plants for process coordination and machine control.
| Advantage | Description |
|---|---|
| Dual Ethernet Ports | Improves network redundancy and stability |
| High Memory Capacity | Supports complex automation programs |
| Modular Expansion | Supports up to 16 I/O modules |
| Flexible Networking | Compatible with Ethernet/IP systems |
| Compact Design | Saves control cabinet space |
| Stable Performance | Reliable real-time operation |
| USB Programming Port | Easy commissioning and debugging |
| Industrial Durability | Resistant to vibration and electrical noise |
| Scalable Architecture | Supports system expansion |
| Proven Industry Use | Widely deployed in factories |
| Multi-Task Processing | Handles logic + communication simultaneously |
| Long Service Life | Designed for continuous operation |
| Parameter | 1769-L33ER | 1769-L30ER | 1769-L30ERM | 1769-L27ERM-QBFC1B | 1769-L24ER-QB1B |
|---|---|---|---|---|---|
| Series | CompactLogix 5370 L3 | CompactLogix 5370 L3 | CompactLogix 5370 L3 | CompactLogix 5370 L2 | CompactLogix 5370 L2 |
| User Memory | 2 MB | 1 MB | 1 MB | 1 MB | 0.75 MB |
| Ethernet Ports | 2 | 2 | 2 | 2 | 2 |
| USB Port | Yes | Yes | Yes | Yes | Yes |
| Integrated I/O | No | No | No | Yes | Yes |
| Analog I/O | No | No | No | Yes | Yes |
| Motion Capability | Limited | Basic | 4 axes | 4 axes | 4 axes |
| Max Expansion Modules | 16 | 16 | 16 | 16 | 16 |
| Dimensions | 118×55×105 mm | 118×55×105 mm | 118×55×105 mm | 140×100×89 mm | 140×110×87 mm |
| Weight kg | 0.65 kg | 0.65 kg | 0.65 kg | 0.79 kg | 0.72 kg |
| Application | Advanced Control | General Control | Motion Control | Hybrid Systems | Machine Control |
Balanced general-purpose CompactLogix controller for standard machine automation.
Motion-capable controller supporting synchronized multi-axis applications.
Integrated I/O controller for hybrid process and motion systems.
Compact controller optimized for small to medium machine control systems.
| Parameter | 1756-L81E | 5069-L310ER | 1734-AENTR | 1769-IF8 | 2080-LC50-48QWB |
|---|---|---|---|---|---|
| Type | ControlLogix CPU | CompactLogix CPU | I/O Adapter | Analog Module | Micro PLC |
| Memory | 3 MB | 2 MB | N/A | N/A | Embedded |
| Communication | Ethernet/IP | Ethernet/IP | Ethernet/IP | Backplane | Ethernet |
| Motion | Advanced | Integrated | None | None | Basic |
| Mounting | Chassis | DIN Rail | DIN Rail | DIN Rail | DIN Rail |
| Dimensions | 145×145×90 | 150×130×90 | 75×35×118 | 118×87×35 | 90×130×80 |
| Weight kg | 1.10 kg | 1.20 kg | 0.15 kg | 0.32 kg | 0.70 kg |
| Main Use | Large Systems | Modern Automation | Distributed I/O | Signal Processing | Small Machines |
The 1769-L33ER is a high-performance CompactLogix controller designed for medium-scale industrial automation requiring higher memory capacity and dual Ethernet communication.
Its core strengths are high memory performance, dual Ethernet architecture, and strong modular scalability, making it suitable for complex machine control and modern manufacturing systems.