Product Introduction
When PROFIBUS network downtime occurs due to faulty connector terminations, the Siemens 6ES7972-0BA42-0XA0 provides a robust solution. This PROFIBUS connector is designed for demanding industrial environments, featuring a screw-type connection, 35° cable outlet, and an integrated terminating resistor with isolating function. Part of the SIMATIC DP family, the 6ES7972-0BA42-0XA0 ensures reliable data transmission up to 12 Mbit/s.
Technical Specifications
Below are the key parameters of the Siemens 6ES7972-0BA42-0XA0 Industrial Automation Module:
| Specification |
Value |
| Transfer Rate (PROFIBUS DP) |
9.6 kbit/s to 12 Mbit/s |
| Number of Electrical Connections (PROFIBUS cables) |
2 |
| Number of Electrical Connections (network/terminal) |
1 |
| Type of Connection (PROFIBUS cables) |
Screw |
| Type of Connection (network/terminal) |
9-pin Sub D |
| Terminating Resistor |
Integrated, slide switch |
| Enclosure Material |
Plastic |
| Cable Outlet Angle |
35° |
| Dimensions (W x H x D) |
15.8 x 54 x 39.5 mm |
| Net Weight |
29 g |
| Ambient Temperature (operation) |
-25 to +60 °C |
| Ambient Temperature (storage/transport) |
-40 to +70 °C |
| Protection Class |
IP20 |
| Silicon-Free |
Yes |
| PG Connection Socket |
No |
| Strain Relief |
Yes |
| RoHS Conformity |
Yes |
| UL Approval |
Yes |
Installation & Setup Guidance
Mounting the Siemens 6ES7972-0BA42-0XA0 is straightforward. Use the screw-locking mechanism to secure the connector to the device. The 35° angled cable outlet facilitates space-saving routing in control cabinets. Ensure the screw terminals are tightened to the recommended torque to maintain a reliable connection. The integrated terminating resistor is activated via the slide switch; enable it only at the ends of the PROFIBUS segment to avoid signal reflections.
Compatibility & Integration
The 6ES7972-0BA42-0XA0 works with all standard PROFIBUS DP networks up to 12 Mbit/s. It is compatible with Siemens SIMATIC S7 controllers and other PROFIBUS masters. The connector accepts standard PROFIBUS cables and includes a 9-pin Sub D interface for network components. For systems requiring a programming port, note that this model excludes the PG socket.
Troubleshooting & Common Issues
Common issues with PROFIBUS connectors include signal loss due to improper termination or loose connections. The Siemens 6ES7972-0BA42-0XA0 prevents these problems with its integrated slide-switch terminating resistor and robust screw terminals. If communication errors persist, verify that the resistor is enabled only on the last device in the segment. Always check that the cable shield is properly grounded.
Selection Guide & Purchasing Advice
Before purchasing the 6ES7972-0BA42-0XA0, confirm that your application does not require a programming port (PG socket). For standard PROFIBUS node connections without PG access, this connector is ideal. PLC Source PRO (visit ubest101 for more details) offers this module with fast shipping and full warranty. Ensure your network cable meets PROFIBUS specifications for best performance.