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Siemens SIMATIC DP RS 485-IS Fieldbus Coupler 6ES7972-0AC80-0XA0
Manufacturer: Siemens
Condition: Brand New
Lead Time: In Stock
Origin: Germany
Warranty: 12 Months
Email: [email protected]
whatsApp: +86-18150117685
- Overview
- Product Overview
- Key Functions
- Official Specifications
- Frequently Asked Questions
- Compatibility & Ordering Notes
- Hot Selling Models
- Recommended Products
Overview
SIEMENS · SIMATIC DP / ET 200iSP
6ES7972-0AC80-0XA0 SIMATIC DP RS 485-IS Fieldbus Coupler
The SIMATIC DP RS 485-IS coupler links a standard PROFIBUS-DP segment to an intrinsically safe RS 485-IS segment for certified field devices in hazardous-area applications.
At a Glance
| Brand | Siemens |
|---|---|
| Model | 6ES7972-0AC80-0XA0 |
| Product Type | SIMATIC DP RS 485-IS fieldbus coupler |
| Core Function | Isolates and converts standard PROFIBUS-DP communication for intrinsically safe bus segments |
| Application or Compatible Series | ET 200iSP and certified PROFIBUS RS 485-IS field devices in hazardous-area systems |
Exact Identification
Match 6ES7972-0AC80-0XA0 character by character and confirm the complete SIMATIC DP RS 485-IS Fieldbus Coupler designation.
Interface Arrangement
Confirm the installed supply, ports, field connections and required accessories before wiring the replacement.
Configuration Check
Preserve the approved engineering project, network parameters and application data used by the installed system.
Product Overview
The SIMATIC DP RS 485-IS coupler links a standard PROFIBUS-DP segment to an intrinsically safe RS 485-IS segment for certified field devices in hazardous-area applications.
The coupler provides galvanic isolation between the PROFIBUS-DP and RS 485-IS sides for fieldbus installations in hazardous areas. Both sides support PROFIBUS rates from 9.6 kBaud to 1.5 MBaud without application-program changes in the connected nodes. Separate DP1, DP2 and ON indicators show activity on each bus side and the condition of the 24 V supply.
Key Functions
Intrinsically Safe Bus Coupling
The coupler provides galvanic isolation between the PROFIBUS-DP and RS 485-IS sides for fieldbus installations in hazardous areas.
Automatic Rate Handling
Both sides support PROFIBUS rates from 9.6 kBaud to 1.5 MBaud without application-program changes in the connected nodes.
Local Bus Diagnostics
Separate DP1, DP2 and ON indicators show activity on each bus side and the condition of the 24 V supply.
Official Specifications
| Rated Supply Voltage | 24 V DC |
|---|---|
| Permitted Supply Range | 20.4 to 28.8 V DC |
| Reverse-Polarity Protection | Yes |
| Power-Failure Buffering | At least 5 ms |
| Maximum Current Consumption | 150 mA |
| Typical Power Loss | 3 W |
| Supply-to-PROFIBUS Isolation Test | 500 V DC |
| PROFIBUS-to-RS 485-IS Isolation Test | 1500 V AC |
| Supported Transfer Rates | 9.6, 19.2, 45.45, 93.75, 187.5, 500 and 1500 kBaud |
| PROFIBUS-DP Connection | X1 bus connector |
| RS 485-IS Connection | Screw terminals |
| Power Connection | Screw terminals for 24 V DC |
| Bus Termination | Integrated and switchable on the RS 485-IS side |
| Conductor Cross-Section | 0.5 to 1.5 mm² solid conductor |
| Wire Stripping Length | 10 mm |
| Terminal Tightening Torque | 0.4 to 0.5 N·m |
| Bus-Connector Screw Torque | 0.5 to 0.7 N·m |
| Degree of Protection | IP20 |
| Dimensions (W × H × D) | 80 × 125 × 67.5 mm |
| Zone 2 Enclosure Requirement | At least IP54 with pollution degree 2 |
Frequently Asked Questions
What enclosure is required for 6ES7972-0AC80-0XA0 in Zone 2?
Install it in an enclosure rated at least IP54 and maintain pollution degree 2 and the permitted overvoltage category.
Why must equipotential bonding be checked before wiring 6ES7972-0AC80-0XA0?
A secure rail-earth connection and local equipotential bonding help maintain the required protective and intrinsic-safety conditions.
Which field devices can connect to 6ES7972-0AC80-0XA0?
Connect only PROFIBUS devices and associated equipment certified for the RS 485-IS segment and the applicable hazardous-area design.
What supply should be connected to 6ES7972-0AC80-0XA0?
Use a 24 V DC supply between 20.4 and 28.8 V and follow the specified terminal polarity and conductor limits.
How are communication faults diagnosed on 6ES7972-0AC80-0XA0?
The yellow DP1 and DP2 indicators show activity on the standard and intrinsically safe bus sides, while the green ON indicator confirms the supply.
When should the terminator on 6ES7972-0AC80-0XA0 be switched on?
Enable it when the coupler is at the physical end of the RS 485-IS segment and leave it off at intermediate positions.
What should be confirmed before replacing 6ES7972-0AC80-0XA0?
Check the hazardous-area approval, enclosure, equipotential bonding, bus addresses, transfer rate, termination, cable routing and 24 V wiring.
Compatibility & Ordering Notes
Compatibility Checklist
- Use only certified PROFIBUS RS 485-IS nodes and associated equipment that match the hazardous-area installation design.
- Connect the mounting rail to local equipotential bonding before attaching the intrinsically safe bus segment.
- Preserve the segment topology, termination position, station addresses and transfer rate during replacement.
