Siemens 6ES7315-1AF02-0AB0 SIMATIC S7-300 CPU 315 central processing unit

Siemens 6ES7315-1AF02-0AB0 SIMATIC S7-300 CPU 315 central processing unit is documented for the stated industrial control system role.

System function

Rebuilt from individual evidence

System position

Evidence and limits

Siemens documentation identifies this reference as a SIMATIC S7-300 CPU 315 with an integrated 24 V DC supply and 48 KB work memory.

Executes the S7-300 control program and exchanges process data with installed signal modules through the rack backplane.

The inferred system position places this reference Sits in the central S7-300 rack between signal modules and the STEP 7 control program.

Unknown: installation-specific compatibility, firmware and configuration support, current unit condition, and commercial availability.

Exact reference: 6ES7315-1AF02-0AB0
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: Executes the S7-300 control program and exchanges process data with installed signal modules through the rack backplane.
System position: Inferred system position: Sits in the central S7-300 rack between signal modules and the STEP 7 control program.
Upstream / inputs: S7-300 signal modules provide process inputs to the CPU through the rack backplane.
Downstream / outputs: The CPU writes control outputs to signal modules for the connected machine.
Limitations: Unknown: installation-specific compatibility, firmware and configuration support, current unit condition, and commercial availability.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Siemens documentation identifies this reference as a SIMATIC S7-300 CPU 315 with an integrated 24 V DC supply and 48 KB work memory.
Confidence: high
- sps-service.eu — retrieved 2026-09-12; high confidence
Executes the S7-300 control program and exchanges process data with installed signal modules through the rack backplane.
Confidence: high
- sps-service.eu — retrieved 2026-09-12; high confidence

Inferences

Inferred system position: Sits in the central S7-300 rack between signal modules and the STEP 7 control program.
Confidence: medium
Rationale: The cited exact-reference documentation identifies the component and its interfaces or function; the placement in this system chain is explicitly marked as an inference.
- sps-service.eu — retrieved 2026-09-12; high confidence

Unknowns

Unknown: installation-specific compatibility, firmware and configuration support, current unit condition, and commercial availability.
Confidence: low
Missing evidence: The individual lookup does not capture an installed-unit inspection, complete configuration record, or current commercial record.

System position diagram

A system diagram places 6ES7315-1AF02-0AB0 between an upstream field or network system and downstream control equipment, with the placement marked as an inference. — The diagram places 6ES7315-1AF02-0AB0 between the documented upstream and downstream functions; that chain position is an explicit inference.

View Mermaid source

flowchart LR; upstream["Upstream field or network system"] --> component["6ES7315-1AF02-0AB0 SIMATIC S7-300 CPU 315 central processing unit"]; component --> downstream["Downstream control program or equipment"];

View diagram labels

Nodes: Upstream field or network system; 6ES7315-1AF02-0AB0 SIMATIC S7-300 CPU 315 central processing unit; Downstream control program or equipment
Edges: Documented input or communication data; Documented output or system effect

Next action

The captured evidence supports the documented identity and concrete system role for 6ES7315-1AF02-0AB0.

Confirm the installed rack, interfaces, firmware and configuration before replacement or commissioning.

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