Allen Bradley 1769-L31 CompactLogix Dual-Serial Port Controller

Release time	Jun 24, 2026
Brand	Allen Bradley PLC
Product Numbe	1769-L31
Country Of Origin	USA
Dimensions	132 x 67.5 mm
Weight	0.3 kg
Condition	New & In Stock
Payment Methods	T/T, PayPal, Western Union
Lead Time	1-3 Working Days
Warranty	One Year
Courier partners	DHL, UPS, TNT, FedEx and EMS.

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Overview
The Rockwell Automation Allen-Bradley 1769-L31 is a CompactLogix controller designed for compact industrial automation and machine-level control applications. It provides reliable processing performance with dual-serial communication support, enabling integration with legacy devices, HMIs, and distributed control systems in small to medium automation environments.

General Information
Part Number: 1769-L31

Manufacturer: Rockwell Automation (Allen-Bradley)

Series: CompactLogix 5370 L1/L2 Platform

Product Type: Programmable Automation Controller (PAC)

Country of Origin: United States

Integrated I/O: Supports 1769 Compact I/O expansion modules

Programming Software: RSLogix 5000 / Studio 5000 Logix Designer

Primary Application: Machine control, sequencing, and serial-based industrial communication

Mounting Type: DIN rail installation

Power Specifications
Input Voltage: 24 V DC nominal

Operating Power: Low-power embedded controller design

Power Source: External 24 V DC supply

Protection: Reverse polarity and transient voltage protection

Efficiency: Designed for compact cabinet integration with low heat output

Communication & Interface
Serial Ports: Dual RS-232 / RS-485 communication interfaces

Industrial Protocols: DF1, ASCII, Modbus (via serial implementation)

Configuration Access: Serial and Ethernet-based programming depending on system setup

System Integration: Supports legacy devices, HMIs, and distributed I/O systems

Diagnostics: Status LEDs for run, fault, and communication indicators

Environmental
Operating Temperature: 0 to 60 °C

Storage Temperature: −40 to 85 °C

Humidity: 5% to 95% non-condensing

Vibration Resistance: Industrial machine environment rated

Protection Rating: IP20 (requires enclosure installation)

Pollution Degree: 2 (industrial indoor environments)

Dimensions & Weight
Dimensions (H × W): 132 × 67.5 mm

Weight: 0.3 kg

Reliable control in a compact footprint — efficiency that keeps production moving!

QDo you provide technical support or installation services?

A Yes, we offertechnical supportfor installation, configuration, and troubleshooting.

QCan I return products if they don’t meet my requirements?

A Returns are accepted within30 daysif the product is unused, unopened, and in its original packaging. Return shipping costs are the buyer's responsibility.

QHow can I ensure compatibility with my existing systems?

A If unsure, please provide yoursystem details, and our support team will verify compatibility before purchase.

QAre there discounts for new wholesale customers?

A We occasionally offerpromotional discountsfor new wholesale customers. Contact us for current offers.

QCan I purchase different quantities of a product?

A Yes, we offerflexible ordering options, whether you need a single unit or a large batch.

QWhat payment methods do you accept for wholesale orders?

A We accept various methods, includingbank transfers (T/T), letters of credit (L/C), and more upon agreement.

QCan I get discounts for bulk purchases?

A Yes, we offercompetitive pricingfor bulk purchases. Contact our sales team for a custom quote.

QWhat is the minimum order quantity (MOQ)?

A The MOQ is usuallyone unit. For bulk orders, please contact us for discounts and pricing details.

QHow long does shipping take?

A Shipping times vary by location. With our16 global warehouses, we strive for fast delivery. Contact us for an estimated delivery time.

QHow can I verify the product before purchasing?

A We can provide high-resolution product images upon request, and our team can arrange warehouse photos for verification.

QDoes this product come with a warranty?

A Yes, we provide a1-year warrantyand support returns and exchanges to protect your rights.

Company Information
E-mail		[email protected]
Mobile		+8613620394314
Whatsapp		+8613620394314
WeChat		+8613620394314
Add		Room 1102, Jiuzhou Commercial Building, Siming District, Xiamen, China

Warranty Conditions

At Qunlebu Co., Ltd., we are committed to ensuring the quality of our products. Our one-year warranty provides coverage for any defects in material or workmanship, excluding damages caused by deliberate misuse.

🛡️Coverage Details:

This warranty encompasses all instances of product malfunction or failure due to inherent manufacturing flaws, with the exception of intentional damage.

📝Claim Process:

To avail of warranty services, please notify us of any quality-related issues within the warranty period. We may conduct online troubleshooting and examination as needed.

🚚Shipping Assistance:

We understand the importance of prompt service. Therefore, we cover return shipping costs for warranty-related returns within the first month of supply. Within three months of supply, we cover one-way shipping costs for warranty-related returns. After three months, the customer is responsible for shipping costs both ways.

🚫Exclusions:

Unauthorized modifications, repairs, or misuse of the product.

Normal wear and tear.

Negligence.

Extreme environmental conditions beyond product specifications.

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