Siemens 6ES7972-0BA41-0XA0 SIMATIC DP Bus Connector

The Siemens 6ES7972-0BA41-0XA0, also cataloged as the SIMATIC DP Bus Connector, operates as a dedicated hardware component for physical bus node connection and medium termination within PROFIBUS DP network platforms.

Hardware Specifications

I/O Density Scaling and Deterministic Token Ring Telemetry

The physical connector enables continuous RS485 differential voltage signaling across localized subrack networks. By establishing an automated internal connection to switchable line termination resistors, this component suppresses cable impedance reflections during maximum high-speed 12 Mbit/s cyclic data transmission bursts. This reliable transmission layer directly preserves internal backplane bus communication velocity indexes, preventing data frame drops across dense I/O density scaling racks linked via a centralized PROFIBUS configuration.

Frequently Asked Questions

Q: How is the physical network line termination configured inside this specific connector housing?

A: The connector integrates a manual slide switch on the outer shell. Flipping this switch to the "ON" position engages the built-in terminating resistor network and mechanically isolates the outgoing hardwired PROFIBUS segment to simplify downstream circuit diagnostics.

Q: Can an industrial programming terminal be connected to the PG socket while the active node is processing real-time system data?

A: Yes. The 9-pin PG interface runs parallel to the primary subrack bus link. Field engineers can connect PG cables or bus analyzer nodes directly into the socket without breaking line continuity or disrupting active token-ring communication.

Field Installation Guidelines

• Cable Stripping Limits: Remove the outer insulation jacket and internal foil shielding using an approved industrial stripping tool adjusted exactly to the factory-specified metric blade cutting depth.
• Shield Grounding Alignment: Position the raw copper cable braid directly under the internal metallic cable clamp, tightening the retention plate to establish low-impedance grounding to the DB9 chassis collar.
• Bus Node Fixing: Insert the connector assembly firmly into the Sub-D receptacle of the PLC module or drive card, securing the dual retention screws to block mechanical displacement from panel vibration.