Siemens 6GK1543-0AA01 CP 5430 TF SINEC L2 processor

Siemens documentation identifies 6GK1543-0AA01 as the CP 5430 TF order number in the SINEC CP 1430 TF communication documentation. The documentation states that the CP 5430 TF with this order number uses a 4 Kbyte dual-port RAM area for backplane communication.

System function and position

Rebuilt from individual evidence

Siemens documentation identifies 6GK1543-0AA01 as the CP 5430 TF order number in the SINEC CP 1430 TF communication documentation.

The documentation states that the CP 5430 TF with this order number uses a 4 Kbyte dual-port RAM area for backplane communication.

Unknown: exact network configuration, system-software version, rack compatibility, and current commercial availability require separate evidence.

The processor exchanges S5 controller data with a SINEC L2 network through the PLC backplane communication path.

Exact reference: 6GK1543-0AA01
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 the CP 5430 TF controller interface.
System position: Sits in the SIMATIC S5 rack between the PLC backplane and the SINEC L2 network.
Upstream / inputs: Receives controller communication data through the S5 backplane interface.
Downstream / outputs: Transmits configured SINEC L2 data through the CP communication interface.
Limitations: Unknown: exact network configuration, system-software version, rack compatibility, and current commercial availability require separate evidence.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Siemens documentation identifies 6GK1543-0AA01 as the CP 5430 TF order number in the SINEC CP 1430 TF communication documentation.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
- sps-service.eu — retrieved 2026-09-12; medium confidence
The documentation states that the CP 5430 TF with this order number uses a 4 Kbyte dual-port RAM area for backplane communication.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
- sps-service.eu — retrieved 2026-09-12; medium confidence

Inferences

The processor exchanges S5 controller data with a SINEC L2 network through the PLC backplane communication path.
Confidence: medium
Rationale: The system position follows from the documented product function and the named upstream or downstream interface.
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
- sps-service.eu — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: exact network configuration, system-software version, rack compatibility, 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 6GK1543-0AA01 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["6GK1543-0AA01"]
  P -->|"documented output"| D["Downstream control system"]

View diagram labels

Nodes: Siemens 6GK1543-0AA01 CP 5430 TF SINEC L2 processor
Edges: Documented system data path

Next action

Siemens documentation identifies 6GK1543-0AA01 as the CP 5430 TF order number in the SINEC CP 1430 TF communication documentation.

Confirm the complete order code and installed system configuration before replacement or commissioning.

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