Configured for DeviceNet network management within CompactLogix control systems, the Allen-Bradley 1769-SDN (1769-SDN DeviceNet Scanner Module) provides direct master/slave communication execution. The hardware utilizes a single-channel interface via a 5-pin Phoenix connector to facilitate cyclic data exchange and network configuration across distributed I/O nodes.

Hardware Specifications

Allen-Bradley Deterministic Network Capabilities

The 1769-SDN module maintains deterministic communication by managing the DeviceNet bus schedule, ensuring predictable I/O density scaling and reduced latency for critical control loops. The integration supports firmware flash compatibility, allowing users to align module operations with specific CompactLogix controller revisions. This deterministic performance is necessary for maintaining synchronization between the scanner and remote field devices, ensuring data integrity across complex industrial network topologies.

Field Installation Protocols

• Mounting: Install the module into a CompactLogix chassis, ensuring the mechanical locking latch is fully engaged.

• Connectivity: Utilize the 5-pin Phoenix male connector for DeviceNet trunk line termination; observe standard network shielding and impedance requirements.

• Termination: Verify the network is terminated with 121 ohm resistors at both physical ends of the trunk line to prevent signal reflection.

• Power: Confirm that the DeviceNet power supply is isolated from the PLC chassis power and maintained within the rated voltage range.

Ordering & Logistics

• Contents: One (1) 1769-SDN Scanner Module.

• Shipping: 2-7 days upon payment completion.

• Transit: Distributed via DHL/FEDEX/UPS.

• Packaging: Anti-static industrial packaging used for all shipments to prevent ESD-related hardware failures.

Frequently Asked Technical Questions

Q: Can the 1769-SDN module be hot-swapped during network operation?

A: No, hot-swapping this module is not supported; the CompactLogix system must be powered down before module insertion or removal to prevent backplane damage.

Q: Is the 5-pin Phoenix connector provided with the module?

A: The connector is typically included with the module; however, verify the package contents for the specific Phoenix connector requirement before installation.

Q: How is the baud rate configured for this scanner?

A: The baud rate is configured via the programming software through the controller's module profile; ensures the baud rate matches all other devices on the DeviceNet network.