Siemens 6ES7972-4AA01-0XA0 SIMATIC DP Power Rail Booster V2.0
ManufacturerSiemensModel6ES7972-4AA01-0XA0Product TypeSIMATIC DP Power Rail Booster V2.0 signal amplifier
01Product Identification
Siemens 6ES7972-4AA01-0XA0 is the Power Rail Booster V2.0 for bidirectional PROFIBUS communication across collector-rail or sliding-contact sections. The booster converts the RS485 signal to a robust level for the Power Rail path and restores it on the opposite side. It operates transparently without its own PROFIBUS address, automatically detects supported transmission rates and is intended for engineered stationary and mobile booster arrangements.
Configuration ControlVerify the full article number, nameplate, electrical design, interfaces, software, wiring and lifecycle requirement before ordering.
02Engineering Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7972-4AA01-0XA0 |
| Product Designation | Power Rail Booster V2.0 |
| System | SIMATIC DP / PROFIBUS |
| Primary Function | Bidirectional signal amplification over collector rails |
| Supported Protocols | PROFIBUS DP, FMS, FDL and MPI |
| Supported Data Rates | 9.6, 19.2, 45.45, 93.75, 187.5 and 500 kbit/s |
| Rate Selection | Automatic detection after a valid telegram |
| PROFIBUS Address | None; transparent network component |
| Protection Class | IP20 |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | -40 to 70 °C |
| Relative Humidity | Below 95%, non-condensing |
| Mounting Position | Horizontal installation on a vertical wall |
03Functions
Operational Functions
- Transfers PROFIBUS data bidirectionally across a contact-rail section.
- Amplifies the RS485 level for improved immunity on the Power Rail path.
- Automatically detects the active supported transmission rate.
- Operates transparently and therefore does not require a PROFIBUS address.
- Supports single-master and multi-master PROFIBUS configurations within the documented rules.
- Provides group-fault signaling and status indications for commissioning and diagnostics.
Identification
- Manufacturer: Siemens
- Model: 6ES7972-4AA01-0XA0
- Product Type: SIMATIC DP Power Rail Booster V2.0 signal amplifier
- Status: Legacy exact article
04Applications
Use Cases
- Mobile machines that communicate through engineered sliding-contact rail systems.
- Material-handling or travel systems with a stationary and a mobile Power Rail Booster.
- PROFIBUS DP segments that must cross a collector-rail transition.
- Legacy installations using the exact V2.0 booster and documented rail topology.
- Maintenance replacement where the complete cable, rail and termination design is retained.
Compatibility Boundary
- Match the exact 6ES7972-4AA01-0XA0 V2.0 article and its Siemens user guide.
- Use supported PROFIBUS rates no higher than 500 kbit/s.
- Confirm stationary/mobile role, DIL-switch settings, rail sections and RS485 termination.
- Inspect sliding contacts, collector rails, grounding and shield connections before replacing electronics.
- Do not substitute the later 4AA02 article without comparing the complete rail system and installation details.
05Lifecycle
- This exact article is documented by the Siemens Power Rail Booster V2.0 user guide dated September 2003.
- Treat the installed network as a legacy engineered system and preserve its configuration records.
- No automatic successor relationship is asserted on this page.
- Before replacement, document every switch setting, connection, rail section and bus parameter.
- After exchange, test rate detection, both transmission directions, fault signaling and all mobile operating positions.
