Technical specifications for 1769-SM2
Allen-Bradley 1769-SM2 – Compact I/O DSI/MODBUS Communication Module
The Allen-Bradley 1769-SM2 is a Compact I/O DSI/MODBUS communication module designed for CompactLogix and MicroLogix 1500 controllers. It enables communication between Allen-Bradley PLCs and PowerFlex drives using Drive Serial Interface (DSI) and MODBUS RTU protocols.
1. General Information
- Manufacturer: Rockwell Automation
- Brand: Allen-Bradley
- Part Number: 1769-SM2
- Product Line: CompactLogix
- Module Type: DSI/MODBUS Communication Module
- Series: A and B
- Module Width: Single Slot
2. Compatibility & Communication Protocols
Compatible Controllers:
- CompactLogix
- MicroLogix 1500
Compatible Drives:
- PowerFlex 4 series
- PowerFlex 7 series
Supported Protocols:
- Drive Serial Interface (DSI)
- MODBUS RTU
Data Transfer Speeds:
- DSI: 19,200 bps
- MODBUS RTU: 300, 600, 1200, 2400, 4800, 9600, 19,200, or 38,400 bps
3. Power & Electrical Specifications
Current Draw:
- 350 mA @ 5V DC (supplied by Compact I/O power supply)
- 0 mA @ 24V DC
Power Supply Distance Rating: 8 modules
Wire Type: Copper (90°C)
Wire Sizes:
- Solid Wire: 22–14 AWG
- Stranded Wire: 22–16 AWG
4. Physical & Environmental Specifications
Mounting Options:
- DIN Rail
- Panel Mounting
Operating Temperature: -10°C to 50°C (14°F to 122°F)
Storage Temperature: -40°C to 85°C (-40°F to 185°F)
Vibration Resistance: 5g, 10 to 500 Hz
Shock Resistance: 30g, 11 ms
Shipping Weight: 2 lbs
Shipping Dimensions: 8 x 8 x 5 inches
5. Key Features & Benefits
- Dual Communication Protocols: Supports both DSI and MODBUS RTU, allowing flexibility in drive integration.
- Wide Compatibility: Works seamlessly with CompactLogix, MicroLogix 1500, and PowerFlex drives.
- Reliable Data Transfer: Offers configurable transfer speeds to match different system requirements.
- Durable Design: Built for industrial environments, resistant to vibration (5g) and shock (30g).
- Easy Installation: Supports DIN rail and panel mounting for quick setup in control cabinets.
6. Applications
- Industrial Automation – Integrates PowerFlex drives with CompactLogix PLCs for precise motion control.
- Manufacturing & Process Control – Ideal for conveyor systems, pumps, fans, and industrial motors.
- Energy & Utility Systems – Used in environments requiring reliable motor and drive communication.