Siemens CP 5611 Communication Processor Modules: 6GK1561-2AA00 A5E39492452-AA

Technical Dossier

Product Details And Specifications

Siemens CP 5611 Series: Comprehensive Module Range and Technical Overview

The Siemens CP 5611 series comprises PCI-based PROFIBUS and MPI communication processors engineered for PC-based integration into SIMATIC S7 automation environments. Deployed across global heavy industry — including petrochemical complexes, nuclear power auxiliary control systems, refinery distributed control systems (DCS), and continuous process manufacturing — the CP 5611 family provides the hardware interface layer between industrial PCs, programming devices (PGs), and PROFIBUS DP/FMS/MPI field networks.

The installed base spans legacy installations from the late 1990s through the mid-2010s, establishing the CP 5611 as one of the most widely maintained PROFIBUS PC interface cards in European and Asian process industries. The specific unit 6GK1561-2AA00 A5E39492452-AA is a PCI card variant with board revision identifier A5E39492452-AA, confirming a later production run with updated PCB layout while maintaining full backward compatibility with STEP 7, WinCC, and SIMATIC NET software stacks.

The Evolution of CP 5611 Architecture

The CP 5611 lineage originates from Siemens' PC-to-PROFIBUS interface strategy in the mid-1990s, when industrial PCs began replacing dedicated PG 740/760 programming devices. The original CP 5411 (ISA bus) was superseded by the CP 5511 (PCMCIA) and CP 5611 (PCI 32-bit, 5V/3.3V universal) as PC form factors standardized on PCI. The CP 5611 A2 revision introduced improved EMC shielding and extended temperature tolerance. The CP 5621 followed as a PCI Express (PCIe) successor, addressing the obsolescence of PCI slots in modern industrial PCs.

Compatibility spans three generations: (1) ISA-era SIMATIC S5 networks requiring protocol converters; (2) PCI-era SIMATIC S7-300/400 PROFIBUS DP networks where the CP 5611 is native; (3) PCIe-era systems where the CP 5621 or CP 5622 are the designated current replacements. Plants running SIMATIC PCS 7 V7.x through V9.x on legacy PC hardware continue to rely on CP 5611 stock for maintenance and emergency replacement. As the CP 5611 series has entered the end-of-sale phase, long-term maintenance support — including verified spare stock and board-level repair — is the primary procurement path for existing installations.

CP 5611 Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified CP 5611 series and closely related SIMATIC NET PC communication processor family. Each entry reflects a distinct hardware or firmware configuration:

6GK1561-1AA00: CP 5611 A2 — 32-bit PCI PROFIBUS/MPI interface, standard production revision
6GK1561-2AA00: CP 5611 — PCI PROFIBUS/MPI interface, revised PCB A5E39492452-AA, SIMATIC NET compatible
6GK1561-3AA00: CP 5611 HMI — WinCC/ProTool HMI PC integration variant, optimized for operator station use
6GK1561-1AA01: CP 5611 A2 — updated firmware, STEP 7 V5.5 SP4+ certified, Windows 7/10 LTSB driver support
6GK1561-2AA01: CP 5611 — production revision AA01, extended OS support including Windows 10 LTSB
6GK1561-1AA00-2AA0: CP 5611 A2 Exchange Unit — factory-refurbished, Siemens-certified repair/exchange
6GK1562-1AA00: CP 5621 — PCIe x1 PROFIBUS/MPI successor to CP 5611, 3.3V PCIe slot
6GK1562-2AA00: CP 5622 — PCIe PROFIBUS DP/FMS/MPI dual-port, SIMATIC NET V13+ required
6GK1571-0BA00-0AA0: CP 5711 — USB-to-PROFIBUS/MPI adapter, portable PG/PC replacement
6GK1560-3AA10: CP 5603 — PCI PROFIBUS DP slave interface for PC-based I/O expansion
6GK1561-6AA00: CP 5613 A2 — PCI PROFIBUS DP master/slave, onboard microprocessor, autonomous DP operation
6GK1561-6AA01: CP 5613 FO — fiber optic PROFIBUS variant, multimode, for high-EMI environments
6GK1561-7AA00: CP 5614 A2 — dual-port PCI PROFIBUS DP master, redundant network support
6GK1561-8AA00: CP 5614 FO — fiber optic dual-port PROFIBUS DP master, plant-wide redundancy
6GK1500-0FC10: PROFIBUS FastConnect RS485 plug 180° — termination connector for CP 5611 Sub-D port
6GK1500-0EA02: PROFIBUS bus connector 90° — standard field wiring connector, compatible with CP 5611
6GK1900-0UB00-0AA0: SIMATIC NET PC Software V13 — driver/configuration package for CP 5611/5621 under TIA Portal
6GK1704-5DW65-3AA0: SIMATIC NET CD V6.5 — legacy driver package for CP 5611 under Windows XP/7

Sourcing Hard-to-Find & Obsolete CP 5611 Parts

The CP 5611 (6GK1561-1AA00, 6GK1561-2AA00) reached end-of-sale status through Siemens' standard product lifecycle process, with the CP 5621 and CP 5622 designated as current replacements. However, the installed base of PCI-slot industrial PCs in process plants — particularly those running SIMATIC PCS 7 V7/V8 on validated hardware configurations — cannot be migrated to PCIe without full system requalification. This creates sustained demand for CP 5611 units as maintenance spares.

DriveKNMS maintains a dedicated inventory of CP 5611 series cards sourced from decommissioned plant equipment, cross-referenced against Siemens hardware revision documentation. Each unit is verified by board revision code (e.g., A5E39492452-AA) to confirm hardware compatibility with the target system's SIMATIC NET software version. Long-term maintenance contracts are available for facilities requiring guaranteed stock allocation over multi-year maintenance windows.

Quality Control for the CP 5611 Range

CP 5611 cards present specific test requirements due to their PCI bus interface logic, onboard PROFIBUS ASIC (ASPC2 or SPC3 derivative), and 9-pin Sub-D PROFIBUS port. DriveKNMS applies the following test protocol to each unit:

1. Visual inspection of PCI edge connector for oxidation, bent pins, and PCB trace integrity.
2. PCI slot insertion test on a validated industrial PC test bench running SIMATIC NET V8.2.
3. PROFIBUS DP master configuration test: network scan at 1.5 Mbit/s and 12 Mbit/s baud rates.
4. MPI protocol verification using STEP 7 V5.5 online connection to a SIMATIC S7-300 CPU.
5. Thermal soak: 30-minute operation at 50°C ambient to screen latent solder joint failures.
6. Board revision code verification against Siemens A5E part number database to confirm unit authenticity.

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