Automation parts, worldwide supply
0
  • 1769-SM2-1
  • 1769-SM2-2
1 3

1769-SM2

Allen-Bradley 1769-SM2 DSI Modbus Module

In stock (19 units), ready to be shipped

  • Manufacturer: Allen-Bradley

  • Product No.: 1769-SM2

  • Product Type: I/O Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 280g

  • Shipping port: Xiamen

  • Warranty: 12 months

30-Day Return Policy · 12-Month Warranty
  • Fast Delivery
  • 24/7 Support
  • Quality Assurance

Description

Product Overview

The Allen-Bradley 1769-SM2 is a versatile Compact I/O communication module that enables seamless integration between CompactLogix or MicroLogix 1500 controllers and PowerFlex drives. By supporting both DSI and Modbus RTU protocols, the 1769-SM2 provides a cost-effective solution for distributed drive control. 

Technical Configuration

Dual-Protocol Versatility

The 1769-SM2 excels in multi-protocol environments. It supports a fixed 19.2 kbps DSI rate for Allen-Bradley drives and adjustable Modbus RTU speeds ranging from 300 to 38.4 kbps. This flexibility allows engineers to interface with a wide range of peripheral devices and legacy systems using a single hardware footprint.

System Integration

Designed for the CompactLogix platform, the 1769-SM2 draws power directly from the backplane (350mA @ 5V DC). Its small form factor supports DIN rail or panel mounting, making it ideal for space-constrained enclosures where efficient hardware density is critical for system performance.

Technical Specifications

Attribute Details
Part Number 1769-SM2
Protocols DSI & Modbus RTU
Controller Compatibility CompactLogix, MicroLogix 1500
Drive Support PowerFlex 4-Class, PowerFlex 7-Class
Current Draw 350mA @ 5V DC
Operating Temp -10°C to 50°C (14°F to 122°F)
Vibration 5g @ 10-500Hz
Weight 0.28 kg

Installation & Maintenance Guide

  • Distance Limits: Maintain a maximum cable length of 10 meters when connecting the 1769-SM2 to PowerFlex drives to ensure signal integrity.
  • Network Expansion: For Modbus networks, the 1769-SM2 supports a maximum distance of 1219 meters (4000 feet).
  • Power Supply Distance: Do not install the 1769-SM2 module more than 4 slots away from the system power supply to prevent voltage drops.
  • Environment: Ensure the installation area is free from corrosive vapors and meets the vibration resistance specifications of 5g.

Engineering Advantages

The 1769-SM2 eliminates the need for complex external gateways by providing native drive communication within the CompactLogix I/O bank. This tight integration allows for better diagnostic visibility and faster commissioning of PowerFlex drive systems. Its ability to host Modbus RTU traffic makes the 1769-SM2 a powerful tool for hybrid systems requiring both proprietary and open-standard communication.

Technical FAQs

Q1: Can the 1769-SM2 control multiple drives simultaneously?
A1: Yes, the 1769-SM2 features three channels that can independently interface with PowerFlex 4-Class or 7-Class drives depending on the configuration.

Q2: Does the 1769-SM2 require an external 24V power source?
A2: No. The 1769-SM2 is fully powered by the 1769 backplane via the 5V DC supply, drawing 0mA from the 24V DC bus.

Q3: Is the Modbus baud rate fixed like the DSI speed?
A3: No. While DSI is fixed at 19.2 kbps, the Modbus RTU communication speed on the 1769-SM2 is adjustable between 300 and 38,400 bps.

Download Data Sheet

Access Detailed Product Specifications PDF

🏷️ Tags: I/O Module
  • Gray

Scalar (V/f)

Vector

AC-powered
  • Confirm the exact model, part number, and specifications before ordering.
  • Ensure compatibility with your current machinery or control systems.
  • Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
  • Review delivery options, lead times, and shipping requirements.
  • Follow manufacturer instructions and best practices during installation.

In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.

Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.

For more details, please review our Shipping & Return Policy.

 View Product Details

ENSURE RELIABLE MACHINERY PERFORMANCE

Transform your home with the latest multi-electronics solutions, from intelligent lighting to vOptimize your operations with the Bently Nevada 3500 Monitoring System, offering real-time vibration and machinery condition monitoring to prevent failures and maximize uptime.oice-controlled devices all designed to make life easier, safer, and more connected.

Purchase now
Step-by-step technical advice and buying tips for industrial automation parts.

Technical & Buying Guide

View all blog