6ES7972-0BB42-0XA0 is a Profibus bus connection plug belonging to Siemens' SIMATIC DP series. The detailed information is as follows:
Bus connection plug
Profibus
9.6 kbit/s to 12 Mbit/s
9-pin Sub-D plug
Compliant with the IEC 61158-2 standard, it has 2 electrical connections for Profibus cables, corresponding to network components and terminal devices respectively.
Plastic
15.8mm (width) × 54mm (height) × 39.5mm (depth)
Approximately 0.05kg
IP20
Integrated resistor combination, whose connection or disconnection can be selected via a slide switch. It is used at the end of the Profibus network to reduce signal reflection.
No separate external power supply is required; it obtains signal energy from the bus.
-40℃ to +70℃
- Adopts an angled cable outlet design for easy wiring.
- Equipped with a PG (Programming Device) socket, allowing convenient connection of programming devices.
- Features terminating resistor isolation function; the connection or disconnection of the terminating resistor can be easily achieved via a slide switch to ensure stable signal transmission.
It is mainly used to connect Profibus nodes to Profibus bus cables. It can be used to connect electrical segments or individual nodes to optical link modules (OLM, OBT), and also to connect nodes or programming devices to repeaters. It is suitable for industrial automation fields such as automatic processing and manufacturing industry networks.
- SIMATIC DP: Retains Siemens' official product series name "SIMATIC DP" (a core product line for Siemens Profibus-DP fieldbus systems), ensuring consistency with the brand's technical documentation.
- Sub-D Plug: A standard term for D-subminiature connectors, commonly used in industrial bus interfaces; "9-pin Sub-D plug" is the internationally accepted name for this interface form.
- OLM/OBT: Abbreviations for Siemens' industrial optical network devices ("Optical Link Module" and "Optical Bus Terminal" respectively), retained as-is to conform to industry-specific abbreviations in Siemens' product ecosystem.
