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Allen-Bradley

1769-L18ER-BB1B | Allen-Bradley CompactLogix 5370 L1 Controller

  • Model 1769-L18ER-BB1B
  • Type PLC Controllers
  • Condition In Stock
4.6/5 (16 reviews)
$234.00 Indicative price · request a quote for availability

Allen-Bradley 1769-L18ER-BB1B CompactLogix 5370 L1 controller with dual Ethernet, 512KB memory, and 16 embedded 24 VDC inputs.

Product Description

When a Line Goes Down, the Controller Is Usually the First Suspect

A food processing plant faced a familiar problem: its aging controller could not keep pace with new packaging equipment, and every hour of downtime cost thousands. The fix was not a complete system overhaul but a single, capable controller. The Allen-Bradley 1769-L18ER-BB1B, a CompactLogix 5370 L1 controller, delivers high-performance control in a compact, cost-efficient package. It is built for factory and process automation where space is tight but communication demands are high.

Figure 1: Front view of the Allen-Bradley 1769-L18ER-BB1B industrial automation component showing its physical design and enclosure.

What the 1769-L18ER-BB1B Brings to the Panel

This controller belongs to the CompactLogix 5370 L1 family. It combines a processor, dual Ethernet ports, and embedded I/O in one DIN-rail-mounted unit. Two Ethernet I/P ports function as an embedded switch with a single IP address. That design supports Linear, Star, and Device Level Ring (DLR) topologies. DLR adds fault tolerance: if one Ethernet line fails, the network switches automatically to the secondary path. For continuous processes, that resilience matters.

The unit ships with 512 Kbytes of embedded user memory and a pre-installed 1784-SD1 Secure Digital card providing 1 GB of non-volatile storage. Internal energy storage eliminates the need for a battery. The controller supports up to 32 tasks and 100 programs per task. Programming languages include Relay Ladder (Safety Task only), Structured Text, Function Block, and SFC.

Technical Specifications

Specification Value
Product Family 5370 L1
Product Type CompactLogix Controller
Communication Ports (1) USB; (2) Ethernet I/P
Ethernet Topologies Linear, Star, Device Level Ring (DLR)
Ethernet Nodes 8 Nodes
Embedded Inputs (16) 24 VDC
Max I/O Modules 8 Modules – Point I/O
Max I/O Banks Not supported
Tasks 32 Task
Programs per Task 100
Programming Languages Relay ladder (Safety Task only), Structured Text, Function block, SFC
Mounting DIN Rail
Current Draw @ 5V DC 1A

Figure 2: Technical layout and connection details for the Allen-Bradley 1769-L18ER-BB1B industrial automation component.

Built-In I/O and Expansion

The 1769-L18ER-BB1B includes 16 embedded 24 VDC inputs and 16 24 VDC outputs. Input channels interface with mechanical switches, magnetic reed switches, pushbuttons, auxiliary contacts, and sensors. Output channels drive pilot lamps, relay coils, and solenoid-actuated devices. For applications needing more I/O, the controller supports up to eight 1734 POINT I/O modules via the 1734 backplane. Note that I/O banks are not supported.

Where This Controller Fits

In oil and gas, the 1769-L18ER-BB1B can manage skid-mounted equipment where DLR keeps communication alive through a single cable fault. In water treatment, it handles pump control and valve sequencing with embedded I/O. For OEM machine builders, the compact footprint and dual Ethernet ports reduce panel space and wiring. The 512 KB memory suits mid-sized programs; check the controller memory estimator before deployment to confirm capacity.

Integration and Selection Notes

The two Ethernet ports support EtherNet/IP for programming devices, SCADA systems, and HMI devices. Up to 256 controller connections and 32 sockets are available. A single USB port handles programming, hardware configuration, and online edits. When wiring into an EtherNet/IP network, confirm cable types and any gateway needs with your supplier. For replacement terminal blocks, the 1769-RTBN18 is the specified part. Wire should be copper rated 90 degrees Celsius, solid 22 to 14 AWG.

Please verify current lifecycle status and availability with Oil AutoTech before ordering. Contact Oil AutoTech today for pricing and availability.

Specifications

Model / No. 1769-L18ER-BB1B
Product Type PLC Controllers
Brand Allen-Bradley
Condition In Stock
Origin US
Warranty 12 Month
Price $234.00

Additional Information

The Allen-Bradley 1769-L18ER-BB1B is a CompactLogix 5370 L1 controller. It is part of the CompactLogix Programmable Automation Controller (PAC) product family which features built-in Two (2) Ethernet communication ports and 512Kbytes embedded user memory. Up to Eight (8) 1734 Point I/O modules may be installed with this controller. Technical specifications for 1769-L18ER-BB1B
Manufacturer Rockwell Automation / Allen-Bradley
Product Family: 5370 L1
Product Type: CompactLogix Controller
Communication ports: (1) USB; (2) Ethernet I/P
Ethernet topologies: Linear, Star and Device level Ring (DLR)
Ethernet nodes: 8 Nodes
Maximum number of I/O modules supported: 8 Modules - Point I/O
Maximum number of I/O banks supported: Not supported
No. of Task: 32 Task
No. of Program per Task: 100
No. of Embedded Inputs: (16) 24 VDC
Programming Language: Relay ladder (Safety Task only) • Structured Text • Function block • SFC
Mounting: DIN Rail
Current draw @ 5V DC: 1A
Brand Allen-Bradley
Part Number/Catalog No. 1769-L18ER-BB1B
Product Line CompactLogix
Module Type Processor Module
Communication Ethernet
Input Power 24 Volts DC
Memory 512KB
Communication Cable 6 Point
Shipping Weight 3 pounds
Shipping Dimensions 11 x 8 x 6 inches
Series A and B
Replacement Terminal Block Part Number 1769-RTBN18
Wire Type Copper-90 degrees Celsius
Wire Size (Solid) 22 to 14 AWG
UPC 10885630101221 Description
The 1769-L18ER-BB1B is a CompactLogix series unit designed and engineered by Allen Bradley, a division of Rockwell Automation. The 1769-L18ER-BB1B features high-performance control with communication elements in a compact and cost-efficient package. The 1769-L18ER-BB1B is classified under the CompactLogix 5370 L1 programmable automation controllers. It supports up to 32 controllers tasks and features 100 continuous or periodic tasks. The 1769-L18ER-BB1B features two Ethernet ports that connect to the EtherNet/IP networks. the ports are used for carrying the same network traffic as the embedded switch of the controller. The controller uses one IP Address. The 1769-L18ER-BB1B also features a single USB port for temporary connections. Up to 4 Ethernet nodes is supported by this controller. The 1769-L18ER-BB1B supports up to 256 controller connections with integrated 16 DC digital inputs and 16 digital outputs. The DIN rail mounted 1769-L18ER-BB1B controller supports a maximum of 8 local POINT I/O modules and uses the 1734 backplane. Its embedded I/O module provides 16 sinking digital input points and 16 sourcing digital output points. It supports DLR network capability enhances resiliency in communication and connectivity. The maximum number of sockets is 32 and the unit also comes with an optional nonvolatile memory featuring 1784-SD1 card supporting up to 1GB of memory, and it is shipped with the unit. The unit also supports a 1784-SD2 card with about 2GB of available memory that is available.

The 1769-L18ER-BB1B is specially designed to support the user needs ensuring high performance and a cost competitive motion solution. Before deployment of the module, it is important to check the controller memory estimator to make sure there is enough memory to execute the controller program for the application. The 1769-L18ER-BB1B features a 0.5 MB user memory. It has an internal energy storage that eliminates the need for an additional battery. In addition, the 1769-L18ER-BB1B can read Relay Ladder, Structured Text, Function block, and SFC programming languages. The operating temperature should be between -20 to 60 degrees Celsius (-4 to 140 degrees Fahrenheit) with an IEC 60068-2-30 non-condensing relative humidity between 5 and 95% for optimal controller performance and product life.

The 1769-L18ER-BB1B primary features an embedded user memory amounting to 0.5 MB and a 1GB non-volatile memory that is provided by the pre-installed 1784-SD1 Secure Digital (SD) card. This non-volatile memory may be replaced and upgraded to 2GB memory with the use of the 1784-SD2. Aside from the built-in memory areas. It also comes with 16 24VDC digital inputs and 16 24VDC digital output channels. Up to Eight (8) 1734 Point I/O modules may be installed to this compact controller to expand the built-in I/O capabilities. This controller can handle up to 32 controller tasks, whether continuous and periodic types, weherin, up to 100 programs may be contained by each controller task.

For communication with programming devices, Supervisory Control and Data Acquisition (SCADA) systems, Human Machine Interface (HMI) devices, this controller is built with Two (2) Ethernet communication interface that may function as an embedded Ethernet switch with single IP address. These ports support Linear, Device Level Ring (DLR) and Traditional start topologies. Up to 32 sockets and 256 controller connections may be established with this device, allowing implementation of complex communication functions. Aside from the Ethernet ports, this controller has One (1) USB port that may be used for programming, hardware configuration and online-edits except industrial communication and data exchange. The 1769-L18ER-BB1B is a CompactLogix controller that is manufactured by Allen-Bradley. This controller belongs to the 5370 CompactLogix product category, ideal for use in factory and process automation. The 1769-L18ER-BB1B is designed with Two (2) Ethernet switches, capable of implementing Device Level Ring (DLR), Linear and Traditional star. Device Level Ring is a single, fault tolerant network capable of automatic switching from primary to secondary communication highway for continuous communication should one of the Ethernet lines fail. Linear topology is a single line of non-fault tolerant communication. Star topology is a type of Ethernet communication topology that allows devices to connect to a central connection point, typically a hub. In modern automation applications, Linear and DLR are the most common topologies used. The 1769-L18ER-BB1B CompactLogix controller is provided with Sixteen (16) 24VDC inputs and Sixteen (16) 24VDC outputs. The input channels are compatible for interfacing 24VDC input signal sources such as mechanical switches, magnetic reed switches, pushbutton devices, auxiliary contacts, sensors, photoelectric sensors, and other similar operating binary devices. The output channels are compatible with 24VDC electrical loads such as pilot lamps, relay coils, solenoid actuated devices and other electrical devices. The integrated memory of the controller amounts to 512Kbytes of volatile memory which does not require a battery for retention of data. This is due to the internal energy storage solution built-in with the controller, batteries are not required. The controller is also provided with a Secure Digital (SD) card with catalog number 1784-SD1 with memory amounting to 1GB of non-volatile memory. The SD card is recommended to be remained installed in the controller even if the controller is not used. If the controller experiences a major-non recoverable fault, fault information is forwarded to the controller. If the controller is installed in a Hazardous location, the SD card is not recommended to be pulled-out when the controller is actively supplied with power as this action may produce an electrical arc which may cause explosion. The SD card is also provided with a notch to lock and unlock the memory card. If the notch is set to unlocked, the controller is capable of writing and reading data to and from the SD card. In the card is set to locked, only read operation is available. The 1769-L18ER-BB1B CompactLogix Controller supports installation of up to Eight (8) POINT I/O modules for expansion of I/O capability. When wiring signals to the embedded channels, recommended wires for use is 0.2051.31 mm2 or 2416 AWG solid or stranded copper wire with insulation rating of 75 C or 167 F, or greater and maximum insulation thickness of 1.2 mm or 3/64 in. Only One (1) wire may be installed to the embedded channel terminals. These languages include Relay ladder, Structured Text, Function block and Sequential Function Chart (SFC).

Shipping & Returns

Shipping Port
Xiamen
Shipping Details
Ships within 1-3 business days after payment via DHL / FedEx / UPS Express, or by sea/air freight for bulk orders. Tracking number is provided the same day the parcel leaves our warehouse.
Return Policy
30-day return for unused items in original packaging. All parts are covered by a 12-month warranty against defects; DOA units are replaced free of charge.

Downloads

Download Instruction Manual (Allen-Bradley_1769_1769-L18ER-BB1B_Service_Manual)

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