Legacy CP 5431 FMS/DP processor for connecting supported SIMATIC S5 115U/H, 135U and 155U/H systems to PROFIBUS.
The Siemens 6GK1543-1AA01 is a SIMATIC NET CP 5431 FMS/DP communications processor supplied as a spare part for installed SIMATIC S5 systems. Siemens identifies its application as connecting SIMATIC S5 AG 115U/H, 135U and 155U/H automation systems to PROFIBUS. The product has reached the end of its lifecycle and Siemens states that it was deleted without replacement, so procurement must focus on exact hardware identity, installed configuration, condition and documentation.
| Manufacturer | Siemens |
|---|---|
| Article number | 6GK1543-1AA01 |
| Product family | Not available in the Siemens catalogue |
| Product Lifecycle (PLM) | Discontinued |
| PLM effective date | End of product lifecycle since 2022-07-01 |
| Parameter | Official specification |
|---|---|
| Product designation | SIMATIC NET CP 5431 FMS/DP communications processor |
| System connection | SIMATIC S5 AG 115U/H, 135U and 155U/H |
| Network | PROFIBUS |
| Commercial designation | Spare part |
| Successor information | Product deleted without replacement |
| Net weight | 0.500 kg |
| Packaging dimensions | 21.20 × 26.30 × 3.00 cm |
| RoHS status | Product is not RoHS-compliant |
| Country of origin | Germany |
Maintain an existing SIMATIC S5 PROFIBUS configuration that was engineered around the CP 5431 FMS/DP.
Replace a failed processor only after matching the complete article number, hardware context and stored project documentation.
Use the exact installed configuration as an input to a broader S5 modernization or controlled migration assessment.
Siemens lists 6GK1543-1AA01 as Discontinued, with the end of product lifecycle since 2022-07-01. The official catalogue states that the product was deleted without replacement.
It is a SIMATIC NET CP 5431 FMS/DP communications processor for connecting supported SIMATIC S5 systems to PROFIBUS.
The official product description lists SIMATIC S5 AG 115U/H, 135U and 155U/H.
No. Siemens describes it as a spare part and lists the lifecycle as Discontinued.
No. The Siemens catalogue states that the product was deleted without replacement.
Provide the full code, controller type, rack and slot context, PROFIBUS configuration, hardware photos and required condition.
Send the exact article number, quantity, condition requirement, destination and application details. We will check availability, compatibility points, worldwide delivery options and warranty terms.
Our service focuses on exact-code verification, condition transparency and practical compatibility checks for industrial automation parts. For this legacy CP 5431 processor, the installed SIMATIC S5 platform and project context are checked before a sourcing response is prepared.
A sales coordinator checks the full article number, quantity, destination, delivery priority and documentation needs. This reduces the risk of a quotation based on a shortened Siemens code or an incorrect hardware variant.
The request is compared with verified manufacturer data. For 6GK1543-1AA01, key checks include the CP 5431 FMS/DP identity, supported S5 controller family, PROFIBUS role, lifecycle status and absence of an official replacement.
Packaging, export documentation and shipping options are coordinated according to the destination and urgency. The offer states the supplied condition, lead-time basis and warranty terms for stakeholder review.
We retain the complete code 6GK1543-1AA01 throughout the inquiry. Nameplate photos, packaging labels and available documentation can be cross-checked so the requested variant is not confused with a related family member.
Compatibility is assessed from the installed controller, rack and slot context, PROFIBUS engineering, firmware or hardware evidence and archived project documentation. No successor equivalence is assumed because Siemens lists the product as deleted without replacement.
Where available, visual evidence can be requested for the label, housing, terminals, interfaces and package contents. Condition, lead time, delivery method and warranty coverage are clarified in the quotation.
| Request item | Why it matters |
|---|---|
| Exact article number and quantity | Prevents suffix errors and supports an accurate availability check. |
| Installed system and application | Supports review of the intended configuration, load or network role. |
| Photos of label and interfaces | Helps compare identity, enclosure condition, terminals and connection points. |
| Destination and required date | Allows suitable global shipping and documentation options to be evaluated. |
| Condition and warranty requirements | Ensures the quotation clearly states the offered basis and support terms. |
Provide the full code, quantity, application details, condition preference and destination. Our team will review availability, key compatibility points, delivery options and warranty terms.
A 70-model reference list for multi-brand maintenance enquiries. Each complete suffix must be checked independently against its own label and official documentation.
| Models 01–14 | Models 15–28 | Models 29–42 | Models 43–56 | Models 57–70 |
|---|---|---|---|---|
| 6GK5208-0BA00-2FC2 | DSX-PLA004 | F9342DT-01 | OC485 | Eurotherm 2404 |
| 330104-02-09-10-01-00 | ABB M2301 2TMA070080W0012 | 2182-227 | B4-24-T-5-30 | RKLB57 6180BKR000000-H1111 |
| PRO3000 | GT437-491 | 233.52.100 | PRO32IN 10290-0000-F REV-C | KNX /644692 |
| EM100 - 823-865 | CK721-A | 15B10840G1 / 15H50541 | ABB PM582 / 1SAP140200R0100 | AVPR100S151213 |
| 0243002430 4.300-2420 | PR 4501 | Nrk16/A | EDB14030 | SDVN-2S |
| E175096 | BMP21 | IEM-3000-8TM | MP80 | LBB4540/04 F01U508294 HW04/02 WK:2017 |
| REG-K 12X230/16 | EB0518(A) FXYMP-M 1677287 | ABB DC505-FBP 1SAP220000R0001 | 102MC-SC | EFCB12T-OE1 |
| 140471-01 3500/70 | 5642-50 | 1SVR450055R0000 | 02-70325-02 | O5H700 |
| AB444230035 | PSM700 | 14YB3-230/C 29317AA8 | 1860114A | GTD-2000Tx |
| 15B10851G1 | 24138990 | D504 | TSW-552-BS | ULFIM-D37M-45-XOR |
| KJ2003X1-BA2 /12P2093X102 | 60950-50 | ATM-20 | K9149FF-05 AS KG149FA | 1606-XLE240EN |
| R6010 | ACHILLES-NGFW-300-2-R3B | GVAG-2VK1S | BOB1024 | WTD-868-T |
| SD55X | LM4-LC24J-2A2UN | sms1600 pn sg001043 | 9418/01-201-10 | H2O |
| BM11D | WV-S1112 | 407860 | ABB 61318968 NDPC-02 | MA2-08E |
Send the exact order code, full suffix, quantity, condition requirement and destination. For legacy SIMATIC S5 requests, include controller type, rack and slot details, PROFIBUS configuration, hardware photos and destination.
