Siemens 6GK1543-0AA02 CP 5430 SINEC L2 communications processor

The exact-reference service listing identifies 6GK1543-0AA02 as Siemens CP 5430 SINEC L2 communications hardware. The listing places the processor in the SIMATIC S5 family and associates configuration with COM5430 TF system software.

System function and position

Rebuilt from individual evidence

The exact-reference service listing identifies 6GK1543-0AA02 as Siemens CP 5430 SINEC L2 communications hardware.

The listing places the processor in the SIMATIC S5 family and associates configuration with COM5430 TF system software.

Unknown: exact hardware revision, rack compatibility, configuration details, and current commercial availability require separate evidence.

The processor provides a SINEC L2 communication path between a SIMATIC S5 controller and the industrial network.

Exact reference: 6GK1543-0AA02
Category: PLC / CPU
Evidence checked: 2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function: Processes SINEC L2 communication data for a SIMATIC S5 controller.
System position: Sits in the SIMATIC S5 rack between the PLC backplane and the SINEC L2 network interface.
Upstream / inputs: Receives controller data through the S5 backplane communication path.
Downstream / outputs: Transmits configured SINEC L2 data through the communication processor interface.
Limitations: Unknown: exact hardware revision, rack compatibility, configuration details, and current commercial availability require separate evidence.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The exact-reference service listing identifies 6GK1543-0AA02 as Siemens CP 5430 SINEC L2 communications hardware.
Confidence: high
- sps-service.eu — retrieved 2026-09-12; high confidence
The listing places the processor in the SIMATIC S5 family and associates configuration with COM5430 TF system software.
Confidence: high
- sps-service.eu — retrieved 2026-09-12; high confidence

Inferences

The processor provides a SINEC L2 communication path between a SIMATIC S5 controller and the industrial network.
Confidence: medium
Rationale: The system position follows from the documented product function and the named upstream or downstream interface.
- sps-service.eu — retrieved 2026-09-12; high confidence

Unknowns

Unknown: exact hardware revision, rack compatibility, configuration details, and current commercial availability require separate evidence.
Confidence: low
Missing evidence: The captured sources do not establish installation-specific compatibility or current commercial conditions.

System position diagram

A flow from the upstream system interface through 6GK1543-0AA02 to the downstream control system. — The diagram shows the documented position of the exact reference in an industrial control path.

View Mermaid source

flowchart LR
  U["Upstream system interface"] -->|"documented input"| P["6GK1543-0AA02"]
  P -->|"documented output"| D["Downstream control system"]

View diagram labels

Nodes: Siemens 6GK1543-0AA02 CP 5430 SINEC L2 communications processor
Edges: Documented system data path

Next action

The exact-reference service listing identifies 6GK1543-0AA02 as Siemens CP 5430 SINEC L2 communications hardware.

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