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The 1769-L33ER is a high-performance programmable automation controller from the Allen-Bradley CompactLogix 5370 series, designed for advanced industrial machine control and process automation. This controller integrates dual-port EtherNet/IP communication, enabling high-speed networking with HMIs,...
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The 1769-L33ER is a high-performance programmable automation controller from the Allen-Bradley CompactLogix 5370 series, designed for advanced industrial machine control and process automation. This controller integrates dual-port EtherNet/IP communication, enabling high-speed networking with HMIs, distributed I/O systems, and supervisory control platforms.
Equipped with 2 MB of onboard user memory and support for up to 2 GB of expandable non-volatile storage via an SD card, the controller provides sufficient capacity for complex logic execution, machine sequencing, and historical data logging. The embedded Ethernet ports also support controller-to-controller communication and network device integration, making the unit suitable for modern connected automation environments.
The 1769-L33ER is engineered for scalable system architectures, supporting up to 16 local I/O modules across three expansion banks using standard expansion cables. Its durable hardware design ensures reliable performance across a wide industrial temperature range. With support for DIN rail or panel mounting, the controller integrates easily into existing control cabinets and is compatible with multiple power supply modules such as the 1769-PA4, 1769-PA2, and 1769-PB4, providing flexible deployment in various electrical infrastructures.
| Parameter | Specification |
|---|---|
| Model Identification | 1769-L33ER |
| Product Line | CompactLogix 5370 |
| User Memory | 2 MB |
| Expandable Memory | Up to 2 GB via SD card |
| I/O Capacity | Up to 16 local modules (maximum 3 banks) |
| Communication Interface | Dual-port EtherNet/IP |
| Backplane Current Draw | 500 mA at 5V DC |
| Power Dissipation | 4.5 W (maximum) |
| Bus Insulation | 30V (maximum) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Weight | 0.31 kg |
EtherNet/IP Networking
Manages distributed I/O networks, controller-to-controller messaging, and high-speed data exchange across industrial Ethernet infrastructures.
Complex Machine Control
Executes advanced motion control, sequential logic operations, and process automation tasks in high-speed manufacturing environments.
Scalable Automation Systems
Provides a flexible control platform capable of expanding with machine requirements, supporting up to 16 local I/O modules while maintaining a compact control cabinet footprint.
Can I use the 1769-L33ER with different power supply modules?
Yes. The controller is compatible with several CompactLogix power supplies, including 1769-PA4, 1769-PA2, and 1769-PB4, allowing flexible power configurations based on system voltage requirements.
What is the advantage of the non-volatile memory card?
The optional SD memory card (up to 2 GB) provides secure backup for control programs, firmware, and configuration data. This allows rapid system recovery after power cycles or during controller replacement, minimizing downtime during maintenance.
