Product details
Product Overview: The Allen-Bradley 1769-SM2 Communication Module
The Allen-Bradley 1769-SM2 from Rockwell Automation is a compact and powerful communication module. It seamlessly bridges the gap between your control system and drives. This versatile module enables CompactLogix and MicroLogix 1500 controllers to talk to a wide array of devices. It achieves this through its robust support for both DSI and MODBUS RTU protocols.
Detailed Technical Specifications
- Brand & Manufacturer: Allen-Bradley / Rockwell Automation
- Model & Suffix: 1769-SM2 (Series A or B)
- Compatible Controllers: CompactLogix, MicroLogix 1500
- Supported Protocols: Drive Serial Interface (DSI), MODBUS RTU
- DSI Baud Rate: Fixed at 19,200 bps
- MODBUS Baud Rates: Selectable from 300 to 38,400 bps
- Backplane Current Draw: 350 mA @ 5V DC; 0 mA @ 24V DC
- Operating Temperature: -10°C to 50°C (14°F to 122°F)
- Vibration Rating: 5g (10-500 Hz)
- Shock Rating: 30g (11 ms duration)
- Wire Type: Copper, 90°C
- Shipping Weight: 2 lbs (0.91 kg)
Installation & Wiring Guide
- Module must be placed within 4 modules of the Compact I/O power supply.
- Mount securely on a standard DIN rail or directly to a panel.
- For best performance, use shielded, twisted-pair cable for network connections.
- Maximum cable distance to a single drive is 10 meters (32.8 ft).
- The total network cable length can extend up to 1219 meters (4000 ft).
Packaging List & Shipping
- One (1) Allen-Bradley 1769-SM2 Communication Module
- Related product documentation and user manual
- Shipping Providers: FedEx, UPS, DHL
- Package Dimensions: 8 x 8 x 5 inches
Frequently Asked Questions (FAQ)
- Q: How many drives can one 1769-SM2 module support?
A: A single module can communicate with up to 15 PowerFlex 4-Class drives (5 per channel). - Q: Can I use this module for system upgrades?
A: Yes, firmware updates are possible using ControlFLASH via the controller’s backplane. - Q: What is the main advantage of the DSI protocol?
A: DSI offers a simplified, dedicated connection for Allen-Bradley PowerFlex drives.
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