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Allen Bradley 1769-L32E CompactLogix Programmable Automation Controller

Configured for programmable control execution in CompactLogix systems, the Allen Bradley 1769-L32E (1769-L32E Programmable Automation Controller) provides direct processor control and EtherNet communication functions for industrial I/O architectures.

Hardware Specifications

Parameter	Specification
Model	1769-L32E
Brand	Allen Bradley
Product Type	Programmable Automation Controller
Product Line	CompactLogix
Origin	USA
Weight	0.75 lb (0.34 kg)
Power Consumption	2.61 W
User Memory	512 KB
Maximum I/O Modules Supported	16
Maximum I/O Banks Supported	3
Backplane Current	330 mA at 5 VDC; 40 mA at 24 VDC
Power Supply Distance Rating	4
Isolation Voltage	30 V continuous
Compatible Battery	1769-BA
Compatible Programming Cable	1747-CP3 or 1756-CP3
Enclosure Type	Open-style

EtherNet/IP and CompactLogix Control Architecture

The 1769-L32E controller operates within the CompactLogix platform and manages local I/O communication through the backplane bus. It supports I/O density scaling with up to 16 Compact I/O modules and three I/O banks. Additionally, the controller uses EtherNet communication capability for system integration and controller-to-device data exchange.

The controller requires controlled firmware compatibility when users perform system upgrades. Therefore, engineers should verify controller revision levels, programming software compatibility, and network configuration before firmware replacement or application migration.

Frequently Asked Questions

Q: How many Compact I/O modules can the 1769-L32E support?
A: The controller supports a maximum of 16 I/O modules distributed across up to three I/O banks.

Q: What backplane current load does the 1769-L32E require?
A: The controller consumes 330 mA at 5 VDC and 40 mA at 24 VDC from the backplane power supply.

Q: Can the 1769-L32E use any CompactLogix battery module?
A: The specified compatible battery module is the 1769-BA. Engineers should verify replacement compatibility before installation.

Field Installation Guidelines

Install the 1769-L32E in an open-style industrial enclosure that provides mechanical protection and controlled environmental conditions.

Before wiring, confirm the backplane power capacity and calculate the total current consumption of all connected Compact I/O modules. Maintain proper grounding practices and separate controller communication wiring from high-voltage power conductors to reduce electrical interference.

During installation, verify the programming cable type and controller communication settings. Use approved configuration tools to load firmware and application programs according to the controller revision requirements.

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