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Allen Bradley 1769-L30ER CompactLogix Programmable Automation Controller

The Allen Bradley 1769-L30ER, also cataloged as the 1769-L30ER Programmable Automation Controller, operates as a dedicated hardware component for controller execution and EtherNet/IP communication within CompactLogix control systems.

Hardware Specifications

Parameter	Specification
Model	1769-L30ER
Brand	Allen Bradley
Origin	USA
Product Type	Programmable Automation Controller
Product Line	CompactLogix
Weight	1.06 lbs (0.48 kg)
Power Consumption	4.5 W maximum power dissipation
User Memory	1 MB
Controller Tasks	32 Tasks, 100 Programs per Task
Communications Ports	2 Ethernet Ports and 1 USB Port
Communication Options	EtherNet/IP and DeviceNet
Maximum EtherNet/IP Nodes	Up to 16 Nodes
Current Draw	500 mA at 5 VDC; 225 mA at 24 VDC
Isolation Voltage	30 V continuous
Mounting Options	DIN Rail or Panel Mount
Enclosure Type	Open-Style

EtherNet/IP and CompactLogix Controller Architecture

The 1769-L30ER integrates CompactLogix controller functions with EtherNet/IP network communication. It provides two Ethernet ports and one USB programming interface for controller configuration, diagnostics, and application transfer. Additionally, the controller supports deterministic EtherNet/IP communication structures with up to 16 network nodes.

The controller executes up to 32 tasks with 100 programs per task. Therefore, it supports structured application organization for machine control, sequential logic, and distributed I/O processing. The CompactLogix backplane bus communication manages data exchange between the controller and connected 1769 I/O modules.

The firmware environment supports CompactLogix application development and controller configuration through compatible programming software. Furthermore, the 1 MB user memory capacity stores application logic, controller data, and operational parameters.

Frequently Asked Questions

Q: What communication interfaces are available on the 1769-L30ER?
A: The controller provides two Ethernet ports for EtherNet/IP communication and one USB port for programming and configuration functions.

Q: How many controller tasks can the 1769-L30ER execute?
A: The controller supports up to 32 tasks, with each task allowing up to 100 programs.

Q: Can the 1769-L30ER support distributed I/O systems?
A: Yes. The controller communicates with CompactLogix I/O modules through the 1769 backplane and supports EtherNet/IP networked devices.

Field Installation Guidelines

Install the 1769-L30ER on a compatible DIN rail or panel mounting surface according to the CompactLogix installation requirements. Ensure sufficient clearance around the open-style enclosure for wiring access and heat dissipation.

Use shielded Ethernet cables in environments with high electrical noise. Ground cable shields according to industrial wiring practices to reduce electromagnetic interference. Separate communication wiring from high-voltage power conductors to minimize signal coupling.

Verify the controller power supply capacity before installation. The connected 1769 modules must remain within the available backplane current limits. Confirm firmware compatibility between the controller, programming software, and connected I/O modules before commissioning.

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