Configured for high-speed protocol translation in industrial control networks, the Allen-Bradley 1769-SM1/A (1769-SM1 Communications Adapter) provides direct electrical interface between DPI/Scanport devices and Compact I/O systems. The module functions as a 3-channel bridge, enabling deterministic data exchange across MicroLogix 1500, CompactLogix, and remote 1769-based nodes.

Hardware Specifications

Deterministic Network Communication

The 1769-SM1 integrates into Allen-Bradley control platforms by leveraging backplane bus communication velocity to maintain synchronization between DPI-enabled peripherals and the controller. The adapter supports firmware flash compatibility, allowing for updates to accommodate evolving communication requirements. By facilitating deterministic connectivity, the module ensures that data packets between the Scanport interface and the I/O bus are processed with minimal latency, maintaining signal integrity in high-density automation environments.

Field Installation Procedures

• Mounting: The adapter is designed for direct panel or 35 mm DIN rail installation.

• Cabling: Use Copper-90 wiring for all field connections to comply with thermal and impedance requirements.

• Grounding: Ensure the module chassis is properly bonded to the system common ground to mitigate electromagnetic interference.

• Connection: Verify secure seating of the communication cables to the DPI/Scanport ports to maintain stable physical layer performance.

Ordering Information

• Contents: One (1) 1769-SM1 Communications Adapter.

• Documentation: Standard technical documentation included.

• Accessory notes: Cables for DPI/Scanport connections are not included unless specified.

Delivery Information

• Delivery time: 2-7 days when payment finish.

• Shipment: Transported via DHL/FEDEX/UPS.

• Packaging: Utilization of anti-static industrial packaging to prevent electrostatic discharge damage and mechanical impact.

Frequently Asked Technical Questions

Q: Does the 1769-SM1 support hot-swapping?

A: No, the 1769-SM1 does not support hot-swapping; power must be disconnected from the 1769 I/O rack before removing or inserting the adapter.

Q: How is the power consumption calculated for this adapter?

A: The adapter utilizes an 8-module distance rating for power supply loading; ensure the power supply in the rack has sufficient capacity to support the total system load.

Q: Can this adapter be used to interface non-Allen-Bradley devices to the 1769 bus?

A: The adapter is strictly designed for communication between Allen-Bradley DPI/Scanport devices and the 1769-based I/O system; non-compliant devices may result in communication errors or hardware damage.