Key Features of the Siemens 6ES7460-1BA01-0AB0
- Interface module for central coupling with PS transfer, without C bus.
- Input current from backplane bus: 5 V DC, max. 85 mA.
- Power loss: max. 425 mW, ensuring energy efficiency.
- Cable length between first and last interface module: max. 1.5 m.
- Dimensions: Width 25 mm, Height 290 mm, Depth 280 mm.
- Weight: approx. 600 g.
One standout specification is the maximum cable length of 1.5 m between interface modules. This allows for flexible rack placement while maintaining signal integrity, which is critical for large-scale S7-400 installations.
Applications in Industrial Automation
In manufacturing plants, the 6ES7460-1BA01-0AB0 supports central coupling in S7-400 racks, enabling distributed I/O and processor communication. For example, it can link a central controller to remote I/O stations, reducing wiring complexity and improving system organization.
Moreover, its low power loss of 425 mW contributes to lower heat generation, which is beneficial in tightly packed cabinets. Consequently, the module helps maintain stable operating temperatures, extending the life of surrounding components.

Installation and Setup
Installing the 6ES7460-1BA01-0AB0 is straightforward. First, ensure the S7-400 rack is powered off. Then, slide the module into an available slot, ensuring it locks securely. Connect the backplane bus cable to the module's connector, keeping the cable length within 1.5 m to avoid signal degradation.
After mounting, verify that the module is properly seated and that all connections are tight. Finally, power up the system and check the module's status indicators to confirm successful initialization.
Maintenance and Reliability
To ensure long-term reliability, periodically inspect the module for dust accumulation and verify that all connections remain secure. Because the module draws only 85 mA from the 5 V DC backplane bus, it places minimal load on the power supply, reducing stress on the system.
Additionally, the low power loss of 425 mW means less heat dissipation, which minimizes thermal stress on adjacent components. Consequently, regular maintenance is simple and infrequent, saving both time and cost.

Compatibility and Integration
The 6ES7460-1BA01-0AB0 is designed for the SIMATIC S7-400 family. It works with other S7-400 modules and racks, providing a seamless integration path. As an interface module, it supports central coupling with PS transfer, making it an essential component for expanding your automation system.
For specific compatibility details, refer to the official Siemens documentation or contact AutoDCSTech for expert guidance.
Troubleshooting Common Issues
If the module fails to communicate, first check the cable connections and ensure the cable length does not exceed 1.5 m. Also, verify that the backplane bus voltage is stable at 5 V DC and that the module's current draw is within the 85 mA limit.
Should issues persist, consult the Siemens manual for detailed diagnostics. Alternatively, reach out to AutoDCSTech for technical support.
Product Support and Availability
The 6ES7460-1BA01-0AB0 is available from AutoDCSTech. Contact us for current stock and lead times. Our team can assist with technical questions and ordering.
Availability & Condition at AutoDCSTech
| Part Number | 6ES7460-1BA01-0AB0 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
