Allen-Bradley 1769-L33ERMS Compact GuardLogix 5370 Safety Controller
Allen-Bradley 1769-L33ERMS is a Compact GuardLogix 5370 safety controller with 2 MB of application memory plus 1 MB of safety memory, SIL 3 safety rating, integrated motion control (up to 8 motion axes), 32 tasks / 1000 programs per task, 256 controller connections, dual EtherNet/IP ports with DLR support, and a USB programming port. It supports up to 16 local 1769 I/O modules and mounts on a DIN rail or panel, combining standard and safety control in one compact platform for machines that demand both productivity and protection.
Overview
The 1769-L33ERMS belongs to the Allen-Bradley Compact GuardLogix 5370 controller family, extending the CompactLogix 5370 architecture with integrated safety capabilities certified to SIL 3. Standard and safety logic execute in the same controller, sharing one programming environment (Studio 5000 Logix Designer), one network, and one HMI connection — reducing hardware, wiring, and engineering cost. With 2 MB of application memory, 1 MB of dedicated safety memory, and support for up to 8 motion axes, it is well suited for packaging, material handling, press, and robotics applications with functional safety requirements.
Key Features
- 2 MB application memory + 1 MB safety memory; 1 GB nonvolatile memory via 1784-SD1 (included)
- SIL 3 safety rating — standard and safety control in one controller
- Integrated motion control, up to 8 motion axes
- 32 tasks / 1000 programs per task; 256 controller connections
- 2 × EtherNet/IP ports (embedded switch, DLR supported) + 1 × USB Type B 2.0 port
- Up to 16 local 1769 I/O modules; 32 EtherNet/IP nodes
- Programmed with Studio 5000 Logix Designer (RSLogix 5000)
- DIN rail or panel mounting; open-style enclosure
Technical Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Line | Compact GuardLogix (CompactLogix 5370 L3 family) |
| Series | Compact GuardLogix 5370 |
| Part Number / Catalog No. | 1769-L33ERMS |
| UPC | 885630424521 |
| Product Type | Safety Programmable Automation Controller (SIL 3) |
| Application Memory | 2 MB |
| Safety Memory | 1 MB |
| Nonvolatile Memory | 1 GB via 1784-SD1 SD card (ships with controller) |
| Controller Tasks | 32 Tasks / 1000 Programs per Task |
| Controller Connections | 256 (maximum) |
| Motion Axes | 8 (maximum, integrated motion) |
| Local I/O Modules | 16 (maximum) |
| EtherNet/IP Nodes | 32 |
| Communication Ports | 2 × EtherNet/IP + 1 × USB Type B 2.0 (Full-Speed) |
| Communication Rates | Ethernet 10/100 Mbps; USB 12 Mbps |
| Supported Protocols | EtherNet/IP; DeviceNet |
| Programming Languages | Ladder Diagram, Function Block Diagram, Structured Text, Sequential Function Chart |
| Programming Software | Studio 5000 Logix Designer (RSLogix 5000) |
| Mounting Options | DIN Rail or Panel Mount |
| Enclosure Type | Open-Style |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Dimensions (H × W × D) | 118 × 55 × 105 mm (4.65 × 2.17 × 4.13 in); 132 mm high incl. mounting feet |
| Weight | 2.00 lbs (0.91 kg) |
| Country of Origin | Singapore |
Applications
The 1769-L33ERMS is widely used in packaging machinery, assembly lines, presses, robotics cells, and material handling systems where functional safety (SIL 3) is required alongside standard machine control. Running standard and safety tasks in one controller simplifies architecture while the dual-port EtherNet/IP with DLR keeps network topology resilient.
Why Buy from Us
This controller is available new in original factory packaging, fully tested and backed by a standard warranty of 1 year. We ship worldwide with careful anti-static packaging and fast dispatch. Quantity discounts and repair/exchange options are available on request.
Documents
GENERAL
| Resource | Title | Link |
|---|---|---|
| Selection Guide | 1769-SG001 — 1769 CompactLogix Modular I/O Selection Guide (English) | 1769-sg001_-en-p.pdf |
| Product Profile | 1769-PP010A — CompactLogix 5370 Controller Family Product Profile | 1769-PP010A-EN-E.pdf |
TECHNICAL DATA
| Resource | Title | Link |
|---|---|---|
| Publication | 1769-TD005 — CompactLogix 5370 and Compact GuardLogix 5370 Controllers Technical Data (English, covers 1769-L33ERMS) | 1769-td005_-en-p.pdf |
USER MANUAL
| Resource | Title | Link |
|---|---|---|
| Publication | 1769-UM021 — CompactLogix 5370 Control Systems User Manual (English) | 1769-um021_-en-p.pdf |
| Safety Reference | 1769-UM002 — Compact GuardLogix 5370 Safety Reference Manual (English, for 1769-L33ERMS safety functions) | 1769-um002_-en-p.pdf |
