Siemens 6GK7443-5DX05-0XE0 CP 443-5 Extended PROFIBUS communications processor

CP 443-5 Extended PROFIBUS communications processor with a documented function and system position; verify installation-specific compatibility.

Documented function and system role

Rebuilt from individual evidence

The cited source identifies 6GK7443-5DX05-0XE0 as a Siemens CP 443-5 Extended PROFIBUS communications processor. The cited source documents that this product connects a simatic s7-400 station to profibus dp and routes configured s7 or pg/op communication.

At the system boundary, the product connects a simatic s7-400 station to profibus dp and routes configured s7 or pg/op communication.

Unknown: the installed wiring, firmware or configuration, physical condition, and compatibility with a specific machine.

Exact reference: 6GK7443-5DX05-0XE0
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 configured S7 or PG/OP communication between a SIMATIC S7-400 station and PROFIBUS DP devices.
System position: Sits between the S7-400 backplane and configured controller data and PROFIBUS DP devices and compatible S5 or PG/OP systems.
Upstream / inputs: Receives the S7-400 backplane and configured controller data as the documented upstream side of the product.
Downstream / outputs: Passes or exchanges data or controlled power toward PROFIBUS DP devices and compatible S5 or PG/OP systems.
Limitations: Unknown: the installed wiring, firmware or configuration, physical condition, and compatibility with a specific machine.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The cited source identifies 6GK7443-5DX05-0XE0 as a Siemens CP 443-5 Extended PROFIBUS communications processor.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
The cited source documents that this product connects a simatic s7-400 station to profibus dp and routes configured s7 or pg/op communication.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
- support.industry.siemens.com — retrieved 2026-09-12; high confidence

Inferences

At the system boundary, the product connects a simatic s7-400 station to profibus dp and routes configured s7 or pg/op communication.
Confidence: medium
Rationale: The exact-reference identity and documented product function support this conservative system-level placement; the installed topology is not asserted.
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
- support.industry.siemens.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: the installed wiring, firmware or configuration, physical condition, and compatibility with a specific machine.
Confidence: low
Missing evidence: An installed-system inspection, configuration record, and physical condition assessment were not available in the individual lookup.

System position diagram

6GK7443-5DX05-0XE0 links the S7-400 backplane and configured controller data with PROFIBUS DP devices and compatible S5 or PG/OP systems. — The product links the S7-400 backplane and configured controller data with PROFIBUS DP devices and compatible S5 or PG/OP systems.

View Mermaid source

flowchart LR
  upstream["the S7-400 backplane and configured controller data"] --> item["6GK7443-5DX05-0XE0"]
  item --> downstream["PROFIBUS DP devices and compatible S5 or PG/OP systems"]

View diagram labels

Nodes: the S7-400 backplane and configured controller data; 6GK7443-5DX05-0XE0 product; PROFIBUS DP devices and compatible S5 or PG/OP systems
Edges: Documented upstream connection; Conservative system path

Next action

Use this reference when the documented product function and electrical or communication requirements match the target system.

Compare the exact marking, installed configuration, and applicable ratings with the cited source documentation before integration.

Request help with this reference

Provide the exact reference, machine context, and observed symptom so the next review can stay evidence-based.

Submission is unavailable until durable storage is verified.

Reference or description *Recovery mode *Country *RegionEmail *Phone

I’m unsure of the exact reference or route; keep my description for human qualification.

Add context only if useful

ManufacturerMachine or lineComponent typeUrgencyProduction impactQuantityAcceptable conditionNeed byPreferred contact

Technical context

What is known so far?

Optional updatesNotify me when the supplier price changesSubscribe to the ardkor.org newsletter

This may be safety-sensitive or emergency-related; hold it for human handling.Allow anonymous landing and source categories to be saved with this request for analytics. This is optional and separate from routing.

Recipient and data disclosure

Named recipient: Ardkor human-qualification queue (internal local preview). No partner delivery is enabled here.

Data retained for this review: reference, selected route, location, technical context, contact details, consent state, and any accepted private attachment.

Response expectation: none is promised. If external routing is enabled later, the partner name, disclosed fields, and response expectation must be shown and accepted again.

Withdrawal and deletion: use the private request controls from the receipt to withdraw further processing or request access/deletion. The request remains recorded until the relevant Ardkor systems and any recipient confirm completion.

External routing consent: I separately authorize Ardkor to use this request for human qualification in the named internal queue. No external partner is authorized by this checkbox.

Read the privacy information before sending. For corrections, access, or deletion help, use the contact page or email reference@ardkor.org; mailbox delivery and attendance have not been verified.

This routing state is separate from watch, marketing, payment, and analytics choices. If no capable service match is found, the request remains a human-qualification lead and is never presented as provider acceptance. Ardkor is not an emergency or safety service and submission does not guarantee availability, price, repair, sourcing, or response.