Allen-Bradley 1769-SM1 CompactLogix DPI/SCANport Module

Configured for direct drive communications and single-axis position execution in CompactLogix and MicroLogix 1500 systems, the Allen-Bradley 1769-SM1 (1769-SM1 DPI/SCANport Communication Module) provides direct physical/electrical execution across Compact I/O backplanes. The module establishes a dedicated gateway interface to connect PowerFlex 7-Class AC drives, digital devices, and motion peripherals directly to the controller architecture without requiring external protocol translation hardware.

Hardware Specifications

Industrial Control & Drive Integration

The module leverages high-speed backplane bus communication velocity to deliver deterministic synchronization between the controller logic and connected drive peripherals. Built-in I/O density scaling allows control architectures to integrate drive parameters into controller data tables efficiently without overwhelming system processing cycles. Automatic firmware flash compatibility checking ensures the module negotiates correct baud rate parameters across connected channels, preventing data packet corruption and preserving real-time loop execution.

Frequently Asked Questions

Q: Does the module support Removal and Insertion Under Power (RIUP) during active operation?

A: No, the 1769-SM1 does not support RIUP functionality. Removing or inserting this module while the CompactLogix backplane power is applied will cause backplane bus faults and can permanently damage the module electronics.

Q: How is the maximum power supply distance rating calculated for this card?

A: The module carries a power supply distance rating of 8. It must be physically installed within 8 module slots of a 1769 system power supply to prevent excessive voltage drop along the backplane power rail.

Field Installation Guidelines

Mount the module securely to a standard DIN rail or panel using the integral mounting feet. Ensure total current consumption on the 5 VDC and 12 VDC backplane buses remains within the power supply budget before restoring operational power. Install solid (22 to 14 AWG) or stranded (22 to 16 AWG) copper wire rated for at least 90 deg C to wire terminals. Route communication lines away from high-voltage AC motor leads to avoid electromagnetic interference. Maintain single-point shield grounding at the enclosure entry point to preserve signal integrity across all connected DPI or SCANport channels.