Allen-Bradley 1769-L33ERM/A CompactLogix 5370 Ethernet Controller

The 1769-L33ERM/A is a CompactLogix controller from the 5370 L3 series, manufactured by Allen-Bradley, a division of Rockwell Automation. It is a small-form-factor controller designed for mid-sized control and automation applications, often used by OEMs for factory or process automation.

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Key Features

1. Integrated Motion over Ethernet/IP
   • Supports up to 8 motion axes, ideal for motion control applications.
2. Memory
   • Embedded 2 MB RAM.
   • Ships with 1 GB non-volatile memory via 1784-SD1 Secure Digital (SD) card.
   • Expandable to 2 GB using 1784-SD2 SD card.
3. Connectivity
   • Dual Ethernet/IP ports supporting Device Level Ring (DLR), Linear, and Star topologies.
   • USB 2.0 Type B port for local programming (not for industrial data exchange).
4. I/O Expansion
   • Supports up to 16 local I/O modules.
   • Allows a maximum of 3 I/O banks for distributed configurations.
5. Task and Program Management
   • Handles 32 tasks, each supporting up to 100 programs.
6. Programming Languages
   • Supports Ladder Logic (RLL), Structured Text (ST), Function Block Diagram (FBD), and Sequential Function Chart (SFC).

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Technical Specifications

Parameter	Details
Module Type	Compact Controller
Part Number	1769-L33ERM/A
Ethernet/IP Nodes	32
Motion Axes	8
Operating Temperature	0 to 60°C
Operating Shock	20 G (DIN rail), 30 G (panel)
Memory	2 MB RAM, 1 GB SD (expandable)
Communication Ports	2 Ethernet/IP, 1 USB
Power Supply Distance	4
Dimensions	8 x 8 x 5 inches
Weight	2 pounds

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Environmental Specifications

• Relative Humidity: 5–95% non-condensing (IEC 60068-2-30).
• Vibration: 5 G at 10–500 MHz.
• Radiated RF Immunity: 10 V/m with 1 kHz sine-wave, 80% AM (80–2000 MHz).

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Applications

The 1769-L33ERM/A is ideal for:

• Factory automation.
• Process control.
• OEM machine-building projects.
• Applications requiring integrated motion and Ethernet/IP connectivity.

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Additional Notes

• The SD card should only be inserted or removed when the controller power is off to avoid electrical arcing.
• Supports high-speed communication at 10 Mbps or 100 Mbps for Ethernet and 12 Mbps for USB.

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