Description
The Allen-Bradley 1769-L18ER-BB1B is a packaged programmable automation controller (PAC) from the CompactLogix 5370 L1 product family. It is engineered for small-to-mid-scale machine control applications, combining high-performance processing, embedded digital I/O, and integrated motion capabilities into a single compact, DIN-rail mountable unit.
In industrial automation environments, this controller manages sequential, process, drive, and safety-related control routines while supporting optimized network architectures via dual EtherNet/IP ports.
Technical Specifications
| Parameter | Value |
| Manufacturer | Rockwell Automation (Allen-Bradley) |
| Product Family | CompactLogix 5370 L1 |
| Catalog Number / Model | 1769-L18ER-BB1B |
| User Memory | 512 KB |
| Embedded Digital Inputs | 16 channels (24 VDC sink/source) |
| Embedded Digital Outputs | 16 channels (24 VDC source) |
| Expansion I/O Capacity | Supports up to 8 1769 Compact I/O expansion modules |
| Communication Ports | 2 x RJ45 EtherNet/IP ports (supporting Device-Level Ring / DLR topologies), 1 x USB port |
| Storage Expansion | 1 GB Secure Digital (SD) card included (expandable/swappable up to 2 GB) |
| Nominal Input Voltage | 24 V DC (non-isolated, Class 3 / Class 2 power supply required) |
| Enclosure Protection | IP20 (DIN rail or panel mount) |
| Operating Temperature | -20 to +60 °C (-4 to +140 °F) |
Procurement and Availability
- Condition: New Factory Sealed / Surplus / Refurbished Tested options available through industrial automation distributors.
- Lead Time: 1 to 3 business days for stock items; verify factory availability for project-scale quantities.
- Warranty: 12-month standard manufacturer or supplier warranty from date of shipment.
- Price: Indicative market pricing applies. Price subject to market conditions; contact us for a firm quote.
Integration and Compatibility Notes
The 1769-L18ER-BB1B integrates seamlessly into modern Rockwell software toolsets and distributed network layouts.
- Software Environment: Programmed natively using Studio 5000 Logix Designer (or RSLogix 5000 depending on the firmware revision version), supporting standard IEC 61131-3 languages including Ladder Diagram, Structured Text, Function Block Diagram, and Sequential Function Chart.
- Device-Level Ring (DLR): The dual Ethernet ports feature an embedded switch supporting DLR topology, allowing controllers to form fault-tolerant ring networks without requiring external managed switches.
- Embedded I/O Handling: The built-in 32 points of digital I/O (16 in / 16 out) operate locally over the internal POINT Bus backplane, minimizing cabinet footprint while leaving room for up to 8 additional 1769 expansion modules.
Frequently Asked Questions
Q: Can the 1769-L18ER-BB1B support motion control applications? A: Yes. This controller supports integrated motion over EtherNet/IP for up to a limited number of axes, making it suitable for synchronized multi-axis servo and VFD applications.
Q: What is the purpose of the included SD card? A: The 1 GB SD card stores user application programs, firmware files, and allows for non-volatile data backup, recipe storage, and automated project loading/restoration in the field.
Q: Can standard 1769 Compact I/O cards be attached to this controller? A: Yes. You can attach up to 8 standard Allen-Bradley 1769 expansion I/O modules directly to the right side of the controller base to scale up analog, specialty, or high-density discrete I/O counts.
