C9900-P224 Beckhoff Industrial PC power supply unit

The Beckhoff installation manual identifies C9900-P224 as a power supply unit for Beckhoff Industrial PCs; with a C9900-U330 battery pack it can form a UPS.

Verified system role

Rebuilt from individual evidence

Unknown: evidence limits

The Beckhoff installation manual identifies C9900-P224 as a power supply unit for Beckhoff Industrial PCs.

The power supply unit supplies regulated power to a Beckhoff Industrial PC.

Unknown: installation-specific compatibility, condition, revision, and replacement suitability require separate evidence.

Exact reference: C9900-P224
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: The power supply unit supplies regulated power to a Beckhoff Industrial PC.
System position: The unit sits between the DC input and the Beckhoff Industrial PC motherboard.
Upstream / inputs: The system sends inputs from 24 V DC input and optional battery pack to the product.
Downstream / outputs: The product sends its controlled output toward Beckhoff Industrial PC and motherboard.
Limitations: Unknown: installation-specific compatibility, condition, revision, and replacement suitability require separate evidence.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The Beckhoff installation manual identifies C9900-P224 as a power supply unit for Beckhoff Industrial PCs.
Confidence: high
- download.beckhoff.com — retrieved 2026-09-12; high confidence
The manual states that C9900-P224 with a C9900-U330 battery pack allows construction of an uninterruptible power supply.
Confidence: high
- download.beckhoff.com — retrieved 2026-09-12; high confidence

Inferences

The unit sits between the DC input and the Beckhoff Industrial PC motherboard.
Confidence: medium
Rationale: The bounded system position is inferred from the exact-reference product identity and documented function.
- download.beckhoff.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: installation-specific compatibility, condition, revision, and replacement suitability require separate evidence.
Confidence: low
Missing evidence: The individual lookup does not establish the installed system, current condition, revision fit, or replacement suitability.

System position diagram

24 V DC input and optional battery pack connects through C9900-P224 to Beckhoff Industrial PC and motherboard. — The C9900-P224 is shown between 24 V DC input and optional battery pack and Beckhoff Industrial PC and motherboard.

View Mermaid source

flowchart LR; U["24 V DC input and optional battery pack"] --> P["C9900-P224"] --> D["Beckhoff Industrial PC and motherboard"]

View diagram labels

Nodes: 24 V DC input and optional battery pack; C9900-P224; Beckhoff Industrial PC and motherboard
Edges: Documented system connection; Product function

Next action

The captured evidence supports the documented Beckhoff Industrial PC power supply unit role; verify the installed system before replacement.

Unknown: confirm installation details, condition, revision fit, and replacement suitability before purchase or installation.

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