PROFIBUS/MPI bus-segment repeater with automatic baud-rate detection up to 12 Mbit/s and IP20 protection.
Siemens 6ES7972-0AA01-0XA0 is a SIMATIC DP RS485 repeater designed to amplify data signals and couple PROFIBUS or MPI bus segments. It supports bus systems with up to 31 nodes and automatically detects standard transmission rates from 9.6 kbit/s to 12 Mbit/s.
The module is used when line length, node count or grounding arrangements require an additional isolated bus segment. Its 24 V DC supply, two bus-cable terminal blocks and IP20 enclosure suit protected control-cabinet installations.
| Manufacturer | Siemens |
|---|---|
| Complete part number | 6ES7972-0AA01-0XA0 |
| Product type | SIMATIC DP RS485 repeater for PROFIBUS/MPI |
| Maximum connected nodes | 31 |
| Maximum transmission rate | 12 Mbit/s |
| Product lifecycle | PM500:Discontinued Product or end of PLM & Support |
| PLM effective date | End of product lifecycle since: 2012.10.01 |
| Official successor | 6ES7972-0AA02-0XA0 — improved user handling |
| Country of origin | Germany |
| Network systems | PROFIBUS and MPI using RS485 |
|---|---|
| Transmission rates | 9.6; 19.2; 45.45; 93.75; 187.5; 500 kbit/s; 1.5; 3; 6; 12 Mbit/s, automatically detected |
| Rated supply voltage | 24 V DC |
| Permissible static supply range | 20.4 to 28.8 V DC |
| Current consumption | Max. 100 mA without PG/OP load; max. 130 mA with 5 V/90 mA load; max. 200 mA with 24 V/100 mA load |
| Electrical isolation | Yes, 500 V AC |
| Bus-cable connections | 2 terminal blocks |
| Power-supply connection | Terminal block |
| Fiber-optic connection | Supported through repeater adapters |
| Redundancy / isochronous mode | No redundancy; isochronous mode supported |
| Operating temperature | 0 to 60 °C |
| Storage temperature | −40 to +70 °C |
| Relative humidity in operation | Up to 95% at 25 °C |
| Degree of protection | IP20 |
| Dimensions (W × H × D) | 45 × 128 × 67 mm |
| Net weight | 0.289 kg |
| Manual reference weight | 350 g including packaging |
Regenerates RS485 signals when a PROFIBUS or MPI line requires another bus segment.
Separates segments when additional nodes are needed while maintaining the permitted limits of each segment.
Couples grounded and ungrounded PROFIBUS/MPI segments through electrical isolation.
Verify the installed 24 V DC supply, network type, baud rate, node count, segment lengths, grounding concept, terminating resistors, bus cable, connectors and available mounting space before ordering. Correct termination is required at each segment end.
The official successor is 6ES7972-0AA02-0XA0. Confirm terminal layout, mounting conditions, handling differences and the complete installed topology before replacement; the successor designation alone does not establish drop-in compatibility.
Official Siemens status: PM500:Discontinued Product or end of PLM & Support.
The end of the product lifecycle has applied since 2012.10.01. Procurement should confirm exact order-code identity, physical condition, warranty basis and compatibility with the installed PROFIBUS/MPI network.
It is a SIMATIC DP RS485 repeater used to regenerate signals and couple PROFIBUS or MPI bus segments.
The repeater automatically detects standard rates from 9.6 kbit/s through 12 Mbit/s.
It uses a 24 V DC rated supply with a permissible static range of 20.4 to 28.8 V DC.
The module measures 45 × 128 × 67 mm. Siemens lists a net weight of 0.289 kg; the manual reference gives 350 g including packaging.
Siemens lists PM500:Discontinued Product or end of PLM & Support, effective since 2012.10.01.
It is the official successor, but the installed topology, connections, mounting and handling requirements should be checked before replacement.
Send the exact part number, required quantity, destination and installed network details. We will check supply options, compatibility, global delivery and applicable warranty terms.
Email: sales6@apterpower.com
WhatsApp: +86 18159889985
Practical support from exact-model identification and compatibility review through inspection, packing and international delivery.
Our office team checks the complete order code, quantity, destination and documentation requirements before sourcing begins.
Received items are checked for model marking, housing condition, connector integrity and traceability before packing.
Protective packing is selected for the equipment type, route and delivery method, with shipment tracking arranged for global destinations.
| Stage | What We Check | Customer Value |
|---|---|---|
| 1. Identification | Manufacturer, complete part number, suffix and nameplate details | Reduces incorrect-model risk |
| 2. Compatibility review | Installed 24 V DC supply, PROFIBUS/MPI topology, baud rate, grounding, termination, bus cable and connectors | Supports informed replacement decisions |
| 3. Supply verification | Available condition, quantity, lead time and warranty basis | Clarifies commercial expectations |
| 4. Inspection and packing | Markings, visible condition, connectors, packing and dispatch records | Improves delivery traceability |
Share the required quantity, destination, network topology, baud rate, node count, grounding arrangement and cable requirements. We will check availability, compatibility, global delivery options and applicable warranty terms.
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Send the exact manufacturer part number, required quantity and destination. We will check availability, model identity, compatibility requirements, global delivery options and applicable warranty terms.
