Description

Allen Bradley 1769-L35E CompactLogix Ethernet Controller

The Allen Bradley 1769-L35E, also cataloged as the 1769-L35E Ethernet Controller, operates as a dedicated hardware component for controller communication and I/O execution within CompactLogix Ethernet/IP systems.

Hardware Specifications

Parameter	Specification
Model	1769-L35E
Brand	Allen Bradley
Origin	United States
Product Type	Ethernet Controller
Product Line	CompactLogix
Weight	0.75 lbs (0.34 kg)
Operating Temp	0 to 60 deg C
Power Consumption	5.5 W
User Memory	1.5 MB
Communication Ports	1 Ethernet port, 1 RS-232 serial port
Compatible CompactFlash Card	1784-CF128
Maximum I/O Modules	30
Maximum I/O Banks	3
Current Draw at 5 VDC	660 mA
Current Draw at 24 VDC	90 mA
Isolation Voltage Rating	30 V continuous
Mounting Method	DIN rail or panel mount
Enclosure Type	Open-style

EtherNet/IP and CompactLogix Controller Features

The 1769-L35E uses CompactLogix backplane bus communication to coordinate controller operations and connected I/O modules. Furthermore, the Ethernet interface supports data exchange between the controller and EtherNet/IP networks for industrial control applications.

The controller supports I/O density scaling through a maximum configuration of 30 Compact I/O modules distributed across up to 3 I/O banks. In addition, the controller provides 1.5 MB user memory for application programs, controller tags, and execution data.

The integrated communication ports include an Ethernet port and an RS-232 serial port. Therefore, the controller can exchange data with network devices and serial equipment within compatible automation architectures.

Frequently Asked Questions

Q: How many Compact I/O modules can the 1769-L35E controller support?
A: The 1769-L35E supports up to 30 Compact I/O modules with a maximum of 3 I/O banks.

Q: What communication interfaces are available on the 1769-L35E?
A: The controller provides 1 Ethernet port and 1 RS-232 serial port for network and serial communication.

Q: Can the 1769-L35E use a CompactFlash memory card?
A: Yes. The controller supports the 1784-CF128 CompactFlash card for compatible storage functions.

Field Installation Guidelines

Install the 1769-L35E on a suitable DIN rail or panel mounting surface according to the controller installation requirements.

Maintain proper separation between communication wiring, power conductors, and high-voltage sources to reduce electrical interference. Connect cable shields according to the system grounding design and maintain correct grounding practices for the control cabinet.

Verify the 5 VDC and 24 VDC power supply loading before installation. The controller current requirements must remain within the available power supply capacity of the CompactLogix system.

Confirm Ethernet cable routing, connector condition, and network configuration before commissioning. Firmware compatibility should also be checked before replacing or upgrading controller hardware.

Specifications

• Brand: Allen Bradley

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems