Siemens 6DD2920-0AL0 SIMADYN D Bus Coupler Module

The Siemens 6DD2920-0AL0, also cataloged as the SIMADYN D Backplane Bus Coupler Module, operates as a dedicated hardware component for backplane bus coupling and module synchronization within SIMADYN D automation system racks.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks and Subrack Synchronization

The 6DD2920-0AL0 functions as a direct hardware routing interface that cross-links processing nodes across dual 16-bit high-performance backplane buses. By providing dedicated electrical buffering and structural synchronization logic, the unit prevents data packet collisions and stabilizes backplane bus communication velocity indexes between calculation segments. When bridging legacy SIMADYN D subracks into contemporary plants managed via Profinet / EtherNet/IP deterministic networks, this module ensures parallel execution timing metrics match strict multi-processor synchronization constraints.

Frequently Asked Questions

Q: Can the 6DD2920-0AL0 module be hot-swapped while the host rack is energized?

A: No. The backplane interface lacks internal pre-charging pins. Power to the entire SAV21 or SAV22 subrack must be fully isolated before inserting or removing the card to prevent destructive voltage transients on the shared 16-bit communication buses.

Q: What is the technical function of the integrated ANST.-BERW.-LOGIK circuitry?

A: The onboard logic executes specialized drive control and monitoring algorithms. It tracks data integrity across the bus sub-segments, triggering hardware-level fault parameters if synchronization intervals fall outside pre-configured timing limits.

Field Installation Guidelines

• Rack Slot Alignment: Slide the module along the integrated guide rails of the SAV21 or SAV22 rack housing, ensuring parallel entry to achieve uniform contact engagement across all backplane pin rows.
• Grounding Connection: Secure the faceplate grounding screws firmly to the metallic rack frame to establish a low-impedance path for high-frequency common-mode noise suppression.
• Thermal Management Verification: Ensure adjacent slots maintain adequate space parameters to permit laminar cooling airflow, preventing thermal build-up from exceeding the +55 deg C maximum ambient operating ceiling.