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Siemens 6ES7972-0AA01-0XA0 SIMATIC DP RS485 PROFIBUS and MPI Repeater
Manufacturer: Siemens
Condition: Brand New
Lead Time: In Stock
Origin: Germany
Warranty: 12 Months
Email: [email protected]
whatsApp: +86-18150117685
- Overview
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Overview
- Apply the cable-length limit for each individual segment at the selected baud rate.
- Count repeaters in the subnet node budget and keep cascades within nine units.
- Set termination for the actual segment endpoints and use the isolation switch for the intended service procedure.
- For ungrounded operation, leave M and PE unconnected and use an ungrounded supply; 6ES7972-0AA02-0XA0 is the listed successor.
SIEMENS SIMATIC DP
6ES7972-0AA01-0XA0 SIMATIC DP RS485 PROFIBUS and MPI Repeater
RS485 repeater for coupling electrically isolated PROFIBUS or MPI bus segments, with automatic baud-rate recognition, termination switches and a PG/OP connection.
At a Glance
| Brand | Siemens |
|---|---|
| Model | 6ES7972-0AA01-0XA0 |
| Product Type | RS485 bus repeater |
| Core Function | Amplification and isolation of bus segments |
| Application | PROFIBUS and MPI networks |
Segment coupling
Amplify data signals between two isolated bus segments.
Automatic baud rate
Recognize the supported rates from 9.6 kbit/s to 12 Mbit/s.
Commissioning access
Use the PG/OP socket and segment-isolation switch during service work.
Product Overview
6ES7972-0AA01-0XA0 amplifies RS485 data signals and couples PROFIBUS or MPI bus segments where additional nodes, greater cable distances or ungrounded segment operation are required.
The two bus segments are electrically isolated, while the PG/OP socket is connected internally to segment 1 and its signals are amplified toward segment 2.
Key Functions
Bus extension
Repeaters allow a network to be divided into additional segments when node counts or cable distances exceed a single segment’s limits.
Electrical separation
Segments 1 and 2 are electrically isolated, allowing the appropriate grounded or ungrounded operating arrangement.
Service and termination
Separate termination switches, segment LEDs, a PG/OP socket and an isolation switch assist commissioning and troubleshooting.
Official Specifications
| Automatic baud-rate recognition | 9.6, 19.2, 45.45, 93.75, 187.5 and 500 kbit/s; 1.5, 3, 6 and 12 Mbit/s |
|---|---|
| Maximum connected nodes | 31 bus nodes |
| Nominal supply and permissible range | 24 V DC; 20.4–28.8 V DC |
| Supply current without PG/OP load | 200 mA at nominal voltage |
| Supply current with 5 V PG/OP load | 230 mA with a 5 V/90 mA load |
| Supply current with 24 V PG/OP load | 200 mA with a 24 V/100 mA load |
| Electrical isolation | 500 V AC; isolation between bus segments |
| Maximum repeaters in series | 9 |
| Segment length at 9.6–187.5 kbit/s | 1000 m |
| Segment length at 500 kbit/s | 400 m |
| Segment length at 1.5 Mbit/s | 200 m |
| Segment length at 3–12 Mbit/s | 100 m |
| PG/OP interface | 9-pin sub-D socket; connected to segment 1 |
| Degree of protection | IP20 |
| Dimensions (W × H × D) | 45 × 128 × 67 mm |
Frequently Asked Questions
When should I add 6ES7972-0AA01-0XA0 to a PROFIBUS network?
A repeater is used when additional bus nodes, longer cable distances or ungrounded segment operation are required.
Does 6ES7972-0AA01-0XA0 support Automatic baud rate for mobile equipment?
The repeater automatically recognizes its supported rates from 9.6 kbit/s to 12 Mbit/s.
How much cable can I use per segment at 12 Mbit/s with 6ES7972-0AA01-0XA0?
The maximum segment length at rates from 3 to 12 Mbit/s is 100 m.
How many units of 6ES7972-0AA01-0XA0 may I connect in series?
No more than nine RS485 repeaters may be connected in series.
Is the PG/OP socket of 6ES7972-0AA01-0XA0 isolated from both segments?
The socket is connected internally to segment 1 and is isolated from segment 2.
How do I configure grounded operation on 6ES7972-0AA01-0XA0?
Grounded operation requires a connection between the M and PE terminals.
Does 6ES7972-0AA01-0XA0 need its own PROFIBUS address?
The repeater must be counted as a bus node regardless of whether it is assigned an MPI or PROFIBUS address.
