SIMATIC BUS LINKS · FIELD DEVICE COUPLER
Physical interface for PROFIBUS PA or Foundation Fieldbus H1 with integrated bus supply, redundancy capability and diagnostics.
Siemens 6ES7157-0AC85-0XA0 is the Field Device Coupler FDC 157 for PROFIBUS PA and Foundation Fieldbus applications. Siemens specifies an integrated bus supply up to 1000 mA, redundancy capability, integrated diagnostics, IP20 protection and operation across an extended temperature range. The coupler uses 24 V DC supply, supports PROFIBUS DP and PROFIBUS PA communication, and can connect up to 31 PA field devices. It is functionally compatible with predecessor FDC 157 articles 6ES7157-0AC83-0XA0 and 6ES7157-0AC84-0XA0. Procurement should verify the complete suffix, bus system, redundancy arrangement, supply, address, wiring, STEP 7 configuration and readable product label.
| Product Condition | Original new |
|---|---|
| Availability | In stock |
| Warranty | With 1 year warranty |
| Shipping | Worldwide shipping options available |
Condition, availability and warranty are Stockoems commercial information, not manufacturer commitments.
| Manufacturer | Siemens |
|---|---|
| Complete Part Number | 6ES7157-0AC85-0XA0 |
| Product Type | Field Device Coupler FDC 157 |
| Supported Fieldbuses | PROFIBUS PA and Foundation Fieldbus H1 |
| Supply Voltage | 24 V DC; permissible range 20.4 to 28.8 V |
| Maximum Current Consumption | 2.3 A at 24 V DC |
| Typical Power Loss | 13.4 W |
| PROFIBUS DP Interface | 45.45 kbit/s; 9-pin Sub-D connection |
| PROFIBUS PA Rate | 31.25 kbit/s |
| Connectable PA Field Devices | Up to 31 |
| Bus Supply Output | Up to 1 A |
| Redundant Operation | Redundancy capable |
| Diagnostics | Integrated diagnostics with bus and fault status indications |
| Electrical Isolation | 600 V DC test voltage |
| Protection Rating | IP20 |
| Operating Temperature | -25 to 60 °C |
| Country of Origin | GERMANY |
| PROFIBUS PA Segments | Couples automation systems to PA field-device networks with integrated bus supply. |
|---|---|
| Foundation Fieldbus H1 | Provides the physical fieldbus interface required by compatible FF architectures. |
| Redundant Coupling | Supports redundancy arrangements where specified by the system design. |
| Maintenance Replacement | Can replace confirmed predecessor FDC 157 articles when configuration requirements are met. |
The reviewed Siemens data sheet and operating instructions confirm the exact 6ES7157-0AC85-0XA0 configuration and its compatibility with predecessor FDC 157 articles. They do not state a current PLM lifecycle category, so no lifecycle status is inferred.
It identifies the Siemens Field Device Coupler FDC 157 for PROFIBUS PA and Foundation Fieldbus applications.
Siemens specifies up to 31 connectable PROFIBUS PA field devices.
Yes. The official product description states that the FDC 157 is redundancy capable.
Siemens identifies 6ES7157-0AC83-0XA0 and 6ES7157-0AC84-0XA0 as compatible predecessors.
Verify the suffix, fieldbus type, supply, segment load, redundancy layout, addressing, wiring and project configuration.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
STOCKOEMS PROCUREMENT SUPPORT
Identity verification, compatibility review, documented inspection, protective packaging and coordinated worldwide fulfilment.
| 01 | Model and suffix verification | The complete 6ES7157-0AC85-0XA0 article number and every suffix character are checked against order and label evidence. |
|---|---|---|
| 02 | Condition confirmation | Housing, optical interfaces, connector areas and visible module condition are reviewed. |
| 03 | Technical compatibility review | Fieldbus type, segment loading, supply, redundancy arrangement, addressing, wiring and STEP 7 configuration are compared. |
| 04 | Product and label photo confirmation | Readable front, rear, nameplate, optical-connector and packaging photos can be requested before approval. |
| 05 | Protective packaging | The module body and connector areas are protected against handling and transport damage. |
| 06 | Worldwide shipping | Available routes are coordinated for the confirmed destination without promising an unverified delivery date. |
| 07 | Shipment tracking | Tracking information is provided after carrier acceptance. |
| 08 | Customs documentation | Commercial shipment documents are prepared for the confirmed order and destination. |
| 09 | Written warranty terms | Warranty scope is recorded in Stockoems commercial documents. |
| 10 | Return authorization process | Returns require written authorization and review under the agreed commercial terms. |
| 11 | After-sales response | Post-shipment questions are handled with order, label, connection and installation evidence. |
Check whether the supplier verifies the complete suffix, provides readable label and condition photos, discusses compatibility limits, records warranty and return terms, protects the equipment and supplies traceable shipment documents.
Warning signs include blurred or missing labels, substituted suffixes, unsupported parameter claims, unclear condition descriptions, refusal to provide inspection evidence, unrecorded return terms and payment requests that do not match the stated company identity.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
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