The Siemens 6GK1561-1AA01 is a CP 5611 A2 communication processor in the form of a 32-bit PCI card, designed to connect a programming device (PG) or PC to PROFIBUS or MPI networks. It enables PC-based engineering, diagnostics, and communication with SIMATIC S7 controllers and other PROFIBUS devices.
This card is a legacy product with significant compatibility limitations: it supports only 32-bit operating systems and is intended for use with SIMATIC NET V8.2 software or older. It does not support Windows 9x, and for modern 64-bit systems (Windows 10/11), the successor 6GK1561-2AA00 (CP 5612) is required .
Item No :
6GK1561-1AA01Order(MOQ) :
1Payment :
EXWProduct Origin :
OriginalShipping Port :
Wuhan, Hubei, ChinaLead Time :
3-5 daysWeight :
0.148kg6GK1561-1AA01 SIEMENS
New in stock
Origin and Brand New
Payment Method: TT.Western Union
Shipping Method: DHL\UPS\Fedex\EMS\Others
Specification
| Brand/Manufacturer | Siemens |
| Part Number | 6GK1561-1AA01 |
| MOQ | 1PC |
| Price | The price is not real, please inquiry |
Trade Process
| Part Number | Description | Key Difference |
|---|---|---|
| 6GK1561-1AA01 | CP 5611 A2, PCI, 32-bit (this item) | Discontinued; aftermarket only |
| 6GK1561-2AA00 | Successor – CP 5612, PCI | Supports 32-bit and 64-bit operating systems |
| 6GK1561-1AM01 | CP 5611 A2 MPI bundle | Includes 5m MPI cable |
| 6GK1571-0BA00-0AA0 | PC Adapter USB A2 | USB interface alternative for modern laptops |
Critical Compatibility Note: This card is limited to 32-bit operating systems and older software versions (SIMATIC NET V8.2 and earlier). It is not compatible with 64-bit Windows 10/11 or modern TIA Portal versions that require the CP 5612 .
1 × Siemens 6GK1561-1AA01 CP 5611 A2 PCI Card
Note: Driver software (SIMATIC NET), MPI cable, and PCI slot are not included.
In Stock – Limited aftermarket stock available
Tested – Each unit verified for functionality (refurbished units)
Warranty Included – 12–24 month warranty available from specialist suppliers
Technical Support – Legacy SIMATIC compatibility assistance available
Q1: What is the Siemens 6GK1561-1AA01?
It is a CP 5611 A2 communication processor in the form of a 32-bit PCI card, designed to connect a PC or programming device to PROFIBUS or MPI networks for engineering and diagnostics .
Q2: Is this product still available from Siemens?
No. It reached end of product lifecycle on October 1, 2025 (PM500 status). It is available only through the industrial aftermarket (surplus, refurbished, or repair services) .
Q3: What is the successor model?
The designated successor is 6GK1561-2AA00 (CP 5612), which supports both 32-bit and 64-bit operating systems .
Q4: Does this card work with Windows 10/11 (64-bit)?
No. The CP 5611 A2 is limited to 32-bit operating systems and older software (SIMATIC NET V8.2 and earlier). For 64-bit systems, the CP 5612 successor is required .
Q5: What is the maximum PROFIBUS transfer rate?
The card supports PROFIBUS speeds from 9.6 kbit/s to 12 Mbit/s .
Q6: What software is required for operation?
The card requires SIMATIC NET software (V8.2 or earlier for 32-bit systems). It is compatible with STEP 7 V5.2+, SOFTNET-S7, SOFTNET-DP, COM PROFIBUS, and STEP 7-Micro/WIN .
Q7: What are the dimensions and weight?
Dimensions are 18 × 102 × 130 mm (W × H × D). Net weight is approximately 0.100 kg (100 g) .
Q8: Can this card be repaired?
Yes. Specialist repair services (e.g., Eichler Service) offer repair for failed cards, typically within 2–5 days .
Q9: What should I verify before ordering?
Always verify the exact part number (6GK1561-1AA01), confirm your operating system is 32-bit (not 64-bit), ensure you have compatible SIMATIC NET software, check the condition and warranty of the specific unit offered, and consider whether the successor 6GK1561-2AA00 would be a better long-term choice for modern systems .
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