1769-L18ERM-BB1BK | Allen Bradley | CompactLogix 5370 L18 Controller

Product Overview

The Allen Bradley 1769-L18ERM-BB1BK functions as a high-performance, compact controller within the CompactLogix 5370 L18 family. This module integrates a 512 KB user memory processor with 16 embedded 24V DC digital inputs and 16 embedded 24V DC digital outputs. As a 100% Brand New and Original "K" variant, it features factory-applied Conformal Coating, providing essential protection against moisture, dust, and corrosive chemical vapors. It supports integrated motion over EtherNet/IP for up to two axes, making it a robust solution for precise positioning in extreme industrial climates.

Part Number Breakdown

The 1769-L18ERM-BB1BK alphanumeric code identifies specific hardware capabilities:

• 1769: Identifies the CompactLogix hardware platform.

• L18: Specifies the 5370 L18 controller tier with 512KB memory.

• ER: Indicates Dual Ethernet ports with Device Level Ring (DLR) support.

• M: Denotes Integrated Motion over EtherNet/IP capability.

• BB1B: Identifies the embedded I/O configuration (16 DC In / 16 DC Out).

• K: Signifies Conformal Coating for environmental hardening.

Technical Specifications

This controller delivers localized I/O and advanced networking within a hardened, DIN-rail mounted footprint:

Engineering Advantages

• Aggressive Environmental Defense: The conformal coating shields internal circuitry from salt spray, humidity, and airborne contaminants. This treatment prevents dendritic growth and premature failure in wastewater, refinery, or offshore applications.

• Integrated Motion Efficiency: The module executes motion profiles for up to 2 axes directly over the network. This eliminates the need for specialized motion hardware and reduces wiring complexity between the PLC and servo drives.

• Fault-Tolerant Networking: Dual Ethernet ports enable Device Level Ring (DLR) topologies. This ensures the system maintains communication even if a single cable segment fails, maximizing machine uptime in critical processes.

• High-Density Compact Design: By combining a processor, 32 points of embedded I/O, and motion control into one unit, this controller significantly reduces the required panel space for machine-side control enclosures.

• Maintenance-Free Data Backup: The unit utilizes internal energy storage to maintain memory during power cycles, removing the need for lithium batteries. An included SD card slot provides non-volatile backup for the user program and safety tags.

FAQs

• What is the primary benefit of the "K" version over the standard model?

  The 1769-L18ERM-BB1BK (K version) includes a protective conformal coating on the internal PCBs. Use this version if your equipment operates in environments with high humidity, chemical fumes, or fine conductive dust.

• Which I/O modules can I add to this controller for expansion?

  This controller uses 1734 POINT I/O modules for local expansion. You can snap up to 8 modules directly to the right side of the controller to increase your digital or analog point count.

• Can this controller replace a legacy 1769-L16 controller?

  Yes, the L18 tier provides higher memory and performance than the L16. However, you must update the controller type in your Studio 5000 project and verify firmware compatibility.

• Is this a factory-sealed, brand new unit?

  Absolutely. We guarantee this unit is 100% Brand New and Original. It arrives in its original Allen Bradley packaging with intact security seals and full technical documentation.