Siemens 6ES7341-1AH02-0AE0 CP 341 RS-232C communications processor

The Siemens 6ES7341-1AH02-0AE0 CP 341 RS-232C communications processor is an RS-232C communications processor for S7-300 serial devices.

System function

Rebuilt from individual evidence

System position

Evidence and limits

6ES7341-1AH02-0AE0 is identified in the source as a SIMATIC S7-300 CP 341 communications processor with an RS-232C interface.

Routes serial RS-232C data between an S7-300 CPU and external devices using supported protocols.

System position: in the S7-300 rack between the CPU backplane and external serial equipment.

Unknown: the selected protocol driver, serial wiring, connected equipment, and physical condition are not established by the source.

Exact reference: 6ES7341-1AH02-0AE0
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: Routes serial RS-232C data between an S7-300 CPU and external devices using supported protocols.
System position: Sits in the S7-300 rack between the CPU backplane and external serial equipment.
Upstream / inputs: The S7-300 CPU supplies serial messages and communication commands.
Downstream / outputs: External RS-232C equipment receives and returns protocol data through the CP 341.
Limitations: Unknown: the selected protocol driver, serial wiring, connected equipment, and physical condition are not established by the source.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The source identifies 6ES7341-1AH02-0AE0 as a SIMATIC S7-300 CP 341 communications processor with an RS-232C interface.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
The source documents that 6ES7341-1AH02-0AE0 routes serial RS-232C data between an S7-300 CPU and external devices using supported protocols.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence

Inferences

Inference: 6ES7341-1AH02-0AE0 occupies this system position: in the S7-300 rack between the CPU backplane and external serial equipment.
Confidence: medium
Rationale: The source identifies the exact reference and documents its interfaces or rack relationship.
- support.industry.siemens.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: the selected protocol driver, serial wiring, connected equipment, and physical condition are not established by the source.
Confidence: low
Missing evidence: The source describes the product design, not the installed unit, configuration or physical condition.

System position diagram

A system path places 6ES7341-1AH02-0AE0 between an upstream system and a downstream system. — The source-supported position of 6ES7341-1AH02-0AE0 connects the upstream system to the downstream system.

View Mermaid source

flowchart LR
  upstream["Upstream system"] --> product["6ES7341-1AH02-0AE0"]
  product --> downstream["Downstream system"]

View diagram labels

Nodes: Upstream system; 6ES7341-1AH02-0AE0; Downstream system
Edges: Documented signal or power path; System connection

Next action

The evidence supports a concrete system role for 6ES7341-1AH02-0AE0.

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