Description

Allen Bradley 1769-SM2 CompactLogix Communication Module

Configured for DSI/Modbus drive communication in CompactLogix systems, the Allen Bradley 1769-SM2 (1769-SM2 Communication Module) provides direct network execution between CompactLogix controllers and PowerFlex 4-Class drives.

Hardware Specifications

Parameter	Specification
Model	1769-SM2
Brand	Allen Bradley
Origin	USA
Product Type	Communication Module
Series	CompactLogix
Network Type	DSI/Modbus
Weight	0.38 lbs (0.17 kg)
Dimensions	Not specified
Operating Temp	-10 to 50 deg C
Power Consumption	350 mA at 5 VDC from Compact I/O power supply
Installation Location	Within 4 slots of the system power supply
Mounting Method	DIN rail mounting or panel mounting
Panel Mount Screws	Two #8 or M4 panhead screws
Number of Channels	3 channels
Channel Connector Type	RJ45 connectors
Operating Modes	Single Mode and Multi-Drive Mode
Single Mode Connection Capacity	1 PowerFlex 4-Class drive connection
Multi-Drive Mode Capacity	5 PowerFlex 4-Class drive connections per channel, 15 total connections
Compatible Drives	PowerFlex 4-Class drives

EtherNet/IP and Industrial Control Integration

The 1769-SM2 module operates as a CompactLogix communication interface for DSI/Modbus drive networks. Therefore, it transfers drive control and monitoring data through three independent communication channels using RJ45 connectors.

Furthermore, the module supports PowerFlex 4-Class drive integration through configurable Single Mode and Multi-Drive Mode operation. In Multi-Drive Mode, each channel manages multiple drive connections, which increases I/O density scaling within CompactLogix-based control architectures.

The module receives power from the Compact I/O backplane system and consumes 350 mA at 5 VDC. Additionally, installation requires placement within four slots of the system power supply to maintain proper electrical distribution.

Frequently Asked Questions (FAQ)

Q: How many PowerFlex 4-Class drives can the 1769-SM2 communicate with?
A: The module supports one drive connection in Single Mode. In Multi-Drive Mode, each channel supports five PowerFlex 4-Class drive connections, allowing up to fifteen total connections across three channels.

Q: Can the 1769-SM2 module be installed on a DIN rail or panel?
A: Yes. The module supports DIN rail mounting and panel mounting with two #8 or M4 panhead screws.

Q: Does the 1769-SM2 require a separate external power supply?
A: No. The module receives operating power from the Compact I/O power supply through the system backplane connection.

Field Installation Guidelines

Install the 1769-SM2 module within four slots of the CompactLogix system power supply to maintain specified power distribution conditions.

Connect RJ45 communication cables according to the assigned DSI/Modbus channel configuration. Keep communication wiring separated from high-voltage power conductors to reduce electrical interference.

For panel mounting applications, secure the module using the specified screw type and verify mechanical stability before system operation.

Verify the Compact I/O power supply load capacity before adding the module to an existing controller assembly. Confirm communication parameters and drive addressing before enabling drive control functions.

Specifications

• Brand: Allen Bradley

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems