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6ES7972-0BB12-0XA0 | PROFIBUS DP Bus Connector with PG Port, 90° Cable Outlet
6ES7972-0BB12-0XA0 PROFIBUS DP / MPI bus connector (RS485). 90° cable outlet, integrated PG/diagnostic port, screw terminals, for S7-300/400/ET 200M networks up to 12 Mbps.
Product Overview
The 6ES7972-0BB12-0XA0 is a PROFIBUS DP / MPI RS485 bus connector (sub-D 9-pin) used to terminate and interconnect nodes in a SIMATIC S7, S5, or ET 200 distributed I/O network. It features a 90° (right-angle) cable outlet, integrated PG/PC diagnostic port (AUX) for online monitoring without disconnecting the bus, and screw terminals for quick cable shield/drain wire termination. This is the standard bus connector for PROFIBUS segments running at up to 12 Mbit/s.
Technical Specifications (Electrical & Network)
Parameter
Specification
Order Number
6ES7972-0BB12-0XA0
Product Family
SIMATIC NET — PROFIBUS / MPI Bus Connector
Interface Type
RS-485 (EIA-485) via Sub-D 9-pin Female (EN 50170 / IEC 61158 Type 3 PROFIBUS DP)
Yes (AUX Port — Sub-D 9-pin Female) — allows passive tap for programming/diagnostics
Bus Termination (Onboard Switch)
No — termination is provided by DIP switch on some variants (this -0BB12 uses external termination plug or built-in switch on newer -0BAxx) — typically last node is terminated with a 6ES7972-0BA50-0XA0 terminator plug
Integrated clamp with screw-down shield/drain wire terminal
Housing Material
ABS/PC (Plastic)
DIN Rail / Panel Mount
Plugs directly onto PLC MPI/DP port or repeater — no separate mounting
Operating Temperature
0 … +60 °C
Storage Temperature
-40 … +85 °C
Protection Class
IP20 (Cabinet Install)
Dimensions (L×W×H)
~60 × 15 × 35 mm (approx., 90° version)
Weight
~0.03 kg
Key Features
PG/PC Diagnostic Tap: The auxiliary AUX port lets you connect a PG/PC or analyzer to the live bus without breaking the segment — essential for commissioning and troubleshooting.
90° Low-Profile Design: Right-angle cable exit saves space in shallow cabinets or tight rack groupings vs. the 35° variant (6ES7972-0BA12-0XA0).
Screw Shield Termination: Dedicated drain wire screw terminal ensures proper shielding practice per EN 50174 — no crimp ferrule needed for shield.
Ecosystem Native: Direct plug-in to CPU 31x/41x MPI/DP ports, CP 5611/5621 cards, IM 153-2 DP interfaces, and Y-Link repeaters.
Applications
PROFIBUS DP Network Build: Connecting S7-300/400 CPUs, ET 200M/ET 200S stations, drives (G120/G130 with PROFIBUS option), and HMI panels into a multi-drop RS485 segment.
MPI Programming Link: Temporary PG connection to S7-300/400 CPUs for STEP 7 download/upload via the AUX port.
Bus Troubleshooting: Tapping live segments with a laptop running SIMATIC NET or third-party PROFIBUS analyzers.
Legacy S5 / S7 Hybrid Networks: Also compatible with MPI protocol (up to 187.5 kbps S7, 1.5 Mbps S5) for mixed-vintage plants.
Note: For the 35° cable outlet version (more common in deep cabinets), see 6ES7972-0BA12-0XA0 (no PG port) or 6ES7972-0BB41-0XA0 (35° with PG port — newer FastConnect design). Bus termination is applied at the two end nodes using either a built-in DIP switch (on -0BA50/-0BB50 variants) or a 6ES7972-0BA50-0XA0 terminator plug on the last connector's AUX port. Always use screened PROFIBUS cable (e.g., 6XV1830-0EH10) and connect the shield to the designated screw terminal.
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Agent,Importer,Trading Company
Year Established:
2012
Total Annual:
2000000-3000000
Employee Number:
>50
Ecer Certification：
Verified Supplier
A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,Pe... A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,Pe...
