Product Overview
The Allen-Bradley 1769-L33ERM is a CompactLogix 5370 L3 controller engineered for small to mid-size control systems. It belongs to the CompactLogix family and delivers reliable performance for OEMs and end users in factory or process automation. With 2 MB user memory and 1 GB non-volatile memory via the included 1784-SD1 card, the 1769-L33ERM handles complex programs with ease.
Technical Specifications
Built for flexibility, the 1769-L33ERM supports up to 32 tasks and 32 Ethernet/IP nodes. It manages 16 local I/O modules distributed across 3 I/O banks. Communication includes 2 Ethernet/IP ports (10/100 Mbps) and 1 USB Type B 2.0 port (12 Mbps). The controller features integrated motion with up to 8 axes, and it supports all major IEC programming languages: Sequential Function Chart, Function Block Diagram, Structured Text, and Ladder Diagram.
| Specification |
Value |
| Part Number/Catalog No. |
1769-L33ERM |
| Brand |
Allen-Bradley |
| Manufacturer |
Rockwell Automation |
| Non-volatile memory |
1GB via 1784-SD1 (ships with the controller) |
| No. of tasks |
32 Tasks |
| Ethernet/IP Nodes |
32 Ethernet/IP Nodes |
| Local I/O modules |
16 I/O modules |
| No. of I/O banks |
3 |
| Communication Ports |
1 Type B 2.0 Full-Speed USB and 2 Ethernet/IP Ports |
| Communication rate, Ethernet |
10 Mbps / 100 Mbps |
| Communication rate, USB |
12 Mbps |
| Integrated Motion |
Yes |
| Motion Axes, maximum |
8 Motion Axes |
| Programming Languages |
Sequential Function Chart, Function Block Diagram, Structured Text, and Ladder Diagram |
| Product Line |
CompactLogix |
| Communication |
Ethernet |
| Memory |
2 MB |
| Shipping Weight |
2 pounds |
| Shipping Dimensions |
8 x 8 x 5 inches |
| Series |
A and B |
| Operating Shock |
20 to 30 G |
| Wire Type |
Copper-90 degrees Celsius |
| Wire Size (Solid) |
22-14 AWG |
| Wire Size (Stranded) |
22-16 AWG |
| Operating Temperature |
0 to 60 degrees Celsius |
| UPC |
10885630161492 |
Key Features & Benefits
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High Memory Capacity: 2 MB user memory and 1 GB non-volatile storage handle large programs and data logging.
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Integrated Motion: Supports up to 8 axes over Ethernet/IP for precise motion control.
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Flexible I/O Expansion: Up to 16 local I/O modules and 3 I/O banks provide scalability.
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Dual Ethernet Ports: Enable DLR, Linear, and Star topologies for network redundancy.
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Battery-Free Operation: Internal energy storage retains user memory without a battery.
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Wide Protocol Support: Works with various I/O and drive systems for seamless integration.
Industry Applications
The Allen-Bradley 1769-L33ERM excels in discrete and analog control applications. Typical uses include packaging machinery, material handling, and process control systems. Its compact form factor and integrated motion make it ideal for OEM machines requiring coordinated multi-axis control. The controller also supports remote I/O over Ethernet, making it suitable for distributed automation architectures.
Installation & Setup
Mount the 1769-L33ERM on a standard DIN rail or panel. Ensure adequate clearance for ventilation and follow the operating temperature range of 0 to 60 degrees Celsius. Use copper wire rated for 90 degrees Celsius, with solid wires of 22-14 AWG or stranded wires of 22-16 AWG. Connect the Ethernet ports using Cat5 or Cat6 cables with RJ45 connectors. For USB communication, use the Type B port for local programming. When inserting or removing the SD card, always power off the controller to prevent electrical arcs.
Maintenance & Reliability
The 1769-L33ERM requires minimal maintenance. Regularly check for dust accumulation and ensure ambient temperature stays within limits. The battery-free design eliminates battery replacement costs. With its robust shock rating (20-30 G) and wide temperature tolerance, this controller delivers long-term reliability in demanding industrial environments.
Compatibility & Integration
The 1769-L33ERM integrates seamlessly with Rockwell Automation ecosystem. It supports 1769 Compact I/O modules, and remote I/O via Ethernet using platforms like 1734 POINT I/O, 1794 FLEX I/O, and 1732 ArmorBlock I/O. For motion, it works with Kinetix 350, 5500, 5700, and 6500 drives, as well as PowerFlex 755 drives. It also communicates with SCADA, DCS, and HMI systems, and can message other controllers such as ControlLogix and MicroLogix.
Buying Guide
Before purchasing, verify that the 1769-L33ERM meets your application's I/O count, memory, and motion requirements. Confirm the availability of the 1784-SD1 card (included) and consider upgrading to the 1784-SD2 for 2 GB storage if needed. PLC Source PRO offers genuine Allen-Bradley 1769-L33ERM controllers with fast shipping and reliable support. Ensure you order from a trusted supplier to guarantee authenticity and avoid counterfeit parts.