Industrial Network Solution – SIEMENS 6ES7972-0BB42-0XA0 | Simatic S7 PROFIBUS Series
Where This Product Is Used
The SIEMENS 6ES7972-0BB42-0XA0 is a 90° PROFIBUS DP bus connector engineered for demanding industrial network environments. It is widely deployed in:
- Automotive manufacturing lines – connecting Simatic S7-300/S7-400 PLCs to distributed I/O racks and robot controllers via PROFIBUS DP
- Process automation plants – linking field devices (drives, sensors, valve positioners) to central control systems in chemical, oil & gas, and water treatment facilities
- Machine tool & CNC systems – daisy-chaining multiple PROFIBUS nodes along a production cell backbone
- Building automation & HVAC – integrating variable frequency drives and smart actuators into BMS networks
- Power distribution & energy management – connecting intelligent electronic devices (IEDs) and motor control centers to SCADA systems
- Packaging & material handling – high-speed conveyor and sorter networks requiring reliable 12 Mbit/s PROFIBUS communication
Technical Specifications
- Part Number: 6ES7972-0BB42-0XA0
- Series: Simatic S7 / PROFIBUS DP
- Connector Type: Sub-D 9-pin, 90° cable exit
- Bus Termination: Switchable (ON/OFF)
- Max. Transmission Rate: 12 Mbit/s
- Cable Diameter: 6–8 mm
- Degree of Protection: IP20
- Operating Temperature: 0 °C to +60 °C
- Weight: approx. 40 g
- Country of Origin: Germany
- Manufacturer: Siemens AG
Why Engineers Specify This Model
- 90° cable exit minimizes panel depth and prevents cable stress at tight installation points
- Integrated termination resistor (switchable) eliminates the need for external termination plugs at segment ends
- Tool-free wire connection with insulation displacement contacts (IDC) for fast, error-free field installation
- Full 12 Mbit/s support ensures compatibility with the fastest PROFIBUS DP networks
- Robust Sub-D housing with metal shell provides EMI shielding and mechanical durability in harsh environments
- Direct Siemens OEM part – guaranteed compatibility with Simatic S7-200, S7-300, S7-400, S7-1500 (via DP interface modules), ET 200 distributed I/O, and third-party PROFIBUS DP devices
Complete System Bill of Materials
For a complete PROFIBUS DP network segment, engineers typically pair this connector with:
- PROFIBUS DP cable – e.g., Siemens 6XV1830-0EH10 (standard) or 6XV1830-3EH10 (festoon)
- PROFIBUS DP master module – e.g., CP 342-5 (6GK7342-5DA02-0XE0) for S7-300
- PROFIBUS DP slave I/O – e.g., ET 200S (6ES7151-1AA05-0AB0)
- Network repeater (for segments >32 nodes) – e.g., 6ES7972-0AA02-0XA0
- PROFIBUS diagnostic tool – e.g., Siemens PROFIBUS Tester 4 (6GK1571-0AA00)
Compliance & Industry Standards
- IEC 61158 – PROFIBUS DP fieldbus standard
- EN 50170 – European fieldbus standard for process control
- CE marked – compliant with EU Machinery Directive and EMC Directive
- UL recognized component (where applicable)
- RoHS compliant
Quality Assurance & Sourcing
All units supplied by Konmask.com are:
- Sourced from authorized distributors or verified surplus channels
- Inspected for physical integrity, label authenticity, and connector pin condition prior to dispatch
- Shipped in original or protective anti-static packaging
- Backed by our 30-day return policy for DOA (Dead on Arrival) units
- Traceable via batch documentation upon request for MRO and OEM procurement teams
How to Source This Part
Submit your RFQ directly via our contact channels below. We respond to all inquiries within 1 business day and can provide:
- Unit pricing and volume discounts for orders of 10+ pcs
- Lead time confirmation and stock availability
- Datasheet, CE declaration, and test reports on request
- DDP (Delivered Duty Paid) shipping to most countries
- Consolidated shipment with other Siemens Simatic parts
Application-Specific FAQ
Q: Can I use 6ES7972-0BB42-0XA0 at the end of a PROFIBUS segment?
A: Yes. Switch the integrated termination resistor to ON position when this connector is at either end of the bus segment.
Q: What is the difference between 0BB42 and 0BB52?
A: The 0BB42 features a 90° cable exit; the 0BB52 has a 35° exit. Both support 12 Mbit/s. Choose based on your panel layout and cable routing requirements.
Q: Is this connector compatible with non-Siemens PROFIBUS devices?
A: Yes. The 9-pin Sub-D interface is the standard PROFIBUS DP physical connector per IEC 61158, compatible with any compliant device regardless of manufacturer.
Q: What cable types are supported?
A: Standard PROFIBUS Type A cable (impedance 135–165 Ω, capacitance <30 pF/m). Cable outer diameter must be 6–8 mm for proper strain relief.
Q: Can this be used with S7-1200 or S7-1500?
A: S7-1200/1500 CPUs do not have a native PROFIBUS DP port, but this connector is fully compatible when used with a CM 1243-5 (PROFIBUS master) or CM 1242-5 (PROFIBUS slave) communication module.
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