Siemens 6ES7223-3BD30-0XB0 documented industrial automation module

6ES7223-3BD30-0XB0 is documented as a Siemens controller or signal module with the cited function and system position.

System function

Rebuilt from individual evidence

Evidence and limits

The cited Siemens data sheet identifies 6ES7223-3BD30-0XB0 as an S7-1200 mixed digital I/O module with the stated input and output channels.

SIMATIC S7-1200 SB 1223 provides 2 24 V DC digital inputs and 2 24 V DC MOSFET outputs with 200 kHz capability.

The system position is an inference from the exact-reference evidence; installation-specific compatibility remains unknown.

Exact reference: 6ES7223-3BD30-0XB0
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: Receives digital field signals and switches digital loads in the documented SIMATIC controller system.
System position: Sits in the controller signal path between field devices or power connections and the CPU processing program.
Upstream / inputs: Receives field signals or the controller backplane connection described by the cited evidence.
Downstream / outputs: Sends the documented switching states to connected digital loads.
Limitations: Unknown: Installation-specific compatibility, wiring, firmware, project configuration, condition and commercial status were not captured.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The cited Siemens data sheet identifies 6ES7223-3BD30-0XB0 as an S7-1200 mixed digital I/O module with the stated input and output channels.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
SIMATIC S7-1200 SB 1223 provides 2 24 V DC digital inputs and 2 24 V DC MOSFET outputs with 200 kHz capability.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence

Inferences

Inferred system position: 6ES7223-3BD30-0XB0 sits in the documented controller signal path between field interfaces and CPU processing.
Confidence: high
Rationale: The cited exact-reference identity and function details support this system-path description; the placement is explicitly an inference.
- support.industry.siemens.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: Installation-specific compatibility, wiring, firmware, project configuration, condition and commercial status were not captured.
Confidence: low
Missing evidence: No installation-specific controller, firmware, wiring, condition or commercial evidence was captured.

System position diagram

A left-to-right diagram shows field devices or power feeding 6ES7223-3BD30-0XB0, which connects to the controller CPU. — System role inferred from the cited evidence for 6ES7223-3BD30-0XB0; installation-specific wiring is not asserted.

View Mermaid source

flowchart LR
 field["Field devices or power"] --> module["6ES7223-3BD30-0XB0"]
 module --> cpu["Controller CPU"]

View diagram labels

Nodes: Field devices or power; 6ES7223-3BD30-0XB0 module; Controller CPU
Edges: Documented input path; Documented controller path

Next action

The cited evidence supports a concrete system role for 6ES7223-3BD30-0XB0; installation-specific compatibility remains an explicit unknown.

Verify the complete 6ES7223-3BD30-0XB0 marking and host-controller configuration before replacement or commissioning.

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