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Communications Processor CP 5611 A2 PCI card (32-bit; 3.3/5V; 33/66 MHz) for connection of a PG or PC with PCI bus to PROFIBUS or MPI
Brand: SIEMENS
Category:
SIEMENS Simatic Control Systems
Specifications
SKU: 6GK1561-1AA01
The Siemens 6GK1561-1AA01 (also known as the CP 5611 A2) is a legacy communication processor PCI card. It connects programming devices (PG) or desktop industrial PCs to SIMATIC networks.
Technical Specifications
- Interface Slot: 32-bit PCI master card (Universal keyed for 3.3V and 5V, 33/66 MHz).
- Connection Port: 1 x 9-pin Sub-D socket (RS-485).
- Transmission Rate: 9.6 kbit/s up to 12 Mbit/s.
- Protocol Support: PROFIBUS DP (Master Class 1 & 2, Slave), MPI, PPI, and S7 communication.
Crucial Compatibility & Lifecycle Notes
- Operating System Limits: It does not natively support modern 64-bit operating systems or Windows versions past Windows XP/7 in newer software architectures.
- Software Constraints: It is primarily compatible with older software suites such as STEP 7 V5.2+, SIMATIC NET V8.2 (32-bit), STEP 7-Micro/WIN, and WinCC.
- Successor Product: If you are migrating a system to newer hardware or standard 64-bit operating systems (like Windows 10 or Windows 11), Siemens recommends using newer generation modules like the 6GK1561-2AA00 (CP 5612) or PCIe equivalents.
Industry Availability
Because this card is intended for maintaining legacy industrial systems, it is heavily traded as surplus, refurbished, or new-old-stock (NOS).
- GEASB: Often supplies certified refurbished units equipped with a 2-year warranty for industrial replacements.
Are you planning to replace a failed card in an existing machine, or are you trying to interface a newer PC with an older S7-300/400 PLC? Knowing your environment helps determine if you need this exact card or a newer USB/PCIe alternative.
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SIEMENS Simatic Control Systems
