Product Overview
When your control system needs a compact yet powerful processor, the Allen-Bradley 1769-L16ER-BB1B delivers. This CompactLogix controller belongs to the 5370 L1 family and packs 384 Kbytes of user memory, dual Ethernet ports, and embedded 24 VDC I/O into a DIN-rail-mounted package. It supports up to six 1734 POINT I/O modules, making it a flexible choice for machine and process automation.
Technical Specifications
| Parameter |
Value |
| Manufacturer |
Rockwell Automation / Allen-Bradley |
| Product Family |
5370 L1 |
| Product Type |
CompactLogix Controller |
| Communication Ports |
(1) USB; (2) Ethernet I/P |
| Maximum I/O Modules Supported |
6 Modules - Point I/O |
| Number of Tasks |
32 Task |
| Programs per Task |
100 |
| Embedded Inputs |
(16) 24 VDC |
| Programming Languages |
Relay Ladder (Safety Task only), Structured Text, Function Block, SFC |
| Mounting |
DIN Rail |
| Current Draw @ 5V DC |
1A |
| Input Power |
24 Volts DC |
| Memory |
384 KB |
| Communication Cable |
6 Point |
| Shipping Weight |
3 pounds |
| Shipping Dimensions |
11 x 8 x 6 inches |
| Series |
A and B |
| Replacement Terminal Block |
1769-RTBN18 |
| Wire Type |
Copper - 90 degrees Celsius |
| Wire Size (Solid) |
22 to 14 AWG |
| UPC |
10885630101221 |
| UNSPSC |
32151705 |
Key Features & Benefits
-
Fast and reliable communication: With two EtherNet/IP ports and an integrated switch, the 1769-L16ER-BB1B supports linear, star, and Device Level Ring (DLR) topologies, enhancing network resilience.
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Ample memory and flexibility: 384 Kbytes of memory store your logic and data. The included 1 GB SD card provides non-volatile storage, expandable to 2 GB.
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Built-in I/O: 16 sinking inputs and 16 sourcing outputs at 24 VDC allow immediate use without extra modules.
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Scalable design: Add up to six 1734 POINT I/O modules for local expansion, keeping your system compact.
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Battery-free memory: Internal energy storage retains memory contents without a battery, reducing maintenance.
Real-World Applications
The 1769-L16ER-BB1B suits a wide range of automation tasks. In packaging machinery, it coordinates multiple stations with precise timing. In material handling, it manages conveyor logic and interlocks. Its DLR capability makes it ideal for applications requiring high availability, such as water treatment or process control, where network redundancy minimizes downtime.
Installation & Setup
Mount the 1769-L16ER-BB1B on a DIN rail in a control panel. Ensure proper clearance for airflow and wiring. Connect 24 VDC power to the controller. For expansion modules, install them to the right and link them via the POINTbus. Use copper wire rated for 90°C, sizes 22 to 14 AWG solid, for terminations. Verify that total current draw does not exceed 1 A on the backplane and 3 A on field power.
Maintenance & Reliability
With no battery to replace, the 1769-L16ER-BB1B requires minimal routine maintenance. Periodically inspect wiring connections and ensure the SD card is securely seated. Check for dust accumulation on the enclosure and verify that ambient temperature stays within specifications. The internal fuse protects against short circuits, adding to system reliability.
Compatibility & Integration
This controller integrates seamlessly with Rockwell Automation's ecosystem. Use RSLogix 5000 or Studio 5000 for programming. The dual Ethernet ports allow connection to HMIs, drives, and other PLCs. It supports EtherNet/IP for communication with remote I/O and third-party devices. The 1769-L16ER-BB1B also works with 1734 POINT I/O modules for expanded I/O.
Selection Guide
Before purchasing, verify your application's I/O count and communication requirements. The 1769-L16ER-BB1B offers 16 inputs and 16 outputs, expandable with POINT I/O. Ensure your programming software version supports this controller. For additional accessories like terminal blocks or SD cards, check the part numbers. PLC Source PRO supplies genuine Allen-Bradley components, ensuring compatibility and quality.