Siemens · PLC I/O / Comms Module

6GK7443-1EX20-0XE0 Siemens SIMATIC NET communication

Yes. Star Automations has 6+ units of Siemens 6GK7443-1EX20-0XE0 (SIMATIC NET communication) in stock in India, condition: Used (as removed); bench test on request. Ask for a quote on WhatsApp +91 97866 22233 or at starautomations.com. We ship across India, support customers from Pondicherry, Chennai, Bengaluru and Hyderabad, and also repair this family.

In stock in IndiaUsed (as removed); bench test on request6+ unitsLast counted: Oct 2026

WhatsApp for a quote Request a quote Call +91 97866 22233

01Key facts

6GK7443-1EX20-0XE0 at a glance

Part number	6GK7443-1EX20-0XE0
Also written as	6GK74431EX200XE0
Brand	Siemens
Family	Siemens SIMATIC NET communication
Category	PLC I/O / Comms Module
Condition	Used (as removed); bench test on request
Quantity band	6+ units
Ships from	India (Star Automations stock)
Invoice	GST invoice
Price	On request

02Specifications

Specifications

Full specifications on request (we share the nameplate photo).

03Fault codes

Common fault codes for this family

Common codes published for this family (check your manual). Wording can vary by firmware and version.

Code or symptom	First check
SF / BF LED	Read the diagnostic in the OEM software and check the supply, wiring and seating of the module.
link down	Check the OEM manual for this code.

Need it repaired instead? See the next section.

04Repair

Need it repaired instead?

Repair your faulty 6GK7443-1EX20-0XE0

Send us your faulty 6GK7443-1EX20-0XE0. Our bench repairs Siemens SIMATIC NET communication at component level and returns it with a test report. See a sample test report.

Repair options Ship it to Star

05Training

Train your team on Siemens SIMATIC NET communication

Train your maintenance team on Siemens SIMATIC NET communication faults: hands-on and remote troubleshooting sessions built on 25+ years of bench repair. Your team stays in charge; we make it stronger.

Engineer training at Star Automations

06Quote

Request a quote for 6GK7443-1EX20-0XE0

Price on request. The quote states warranty terms and dispatch timing. Prefer chat? WhatsApp +91 97866 22233.

07FAQ

6GK7443-1EX20-0XE0 — common questions

Is 6GK7443-1EX20-0XE0 in stock in India?

Yes. Our stock records list 6+ units of Siemens 6GK7443-1EX20-0XE0, condition: Used (as removed); bench test on request. Last counted: Oct 2026. Stock can change, so confirm on WhatsApp +91 97866 22233 before you order. We ship across India.

What condition is it in?

Used (as removed); bench test on request. We state the condition exactly as listed and do not describe a part as better than it is. Warranty terms are stated on the quote, and a nameplate photo is shared on request.

Can you test it before dispatch?

Yes, a bench check is available on request; tell us when you ask for the quote. Our bench has an oscilloscope, electronic load tester, LCR meter and hi-pot tester, used as the part type needs. The test details are shared with the quote.

Do you give a GST invoice?

Yes. Every sale carries a GST invoice. Send your company name and GSTIN with the quote request so that the invoice matches your records. Price is on request and is shared with the quote.

Can you repair my faulty 6GK7443-1EX20-0XE0 instead?

Yes, where repair is practical. Our bench repairs Siemens SIMATIC NET communication at component level and returns the unit with a test report. WhatsApp the fault first for an opinion, or ship the unit to Star Automations.

What does SF / BF LED mean on Siemens SIMATIC NET communication?

SF / BF LED is listed among the common codes published for this family; wording can vary by firmware, so check your manual. First check: Read the diagnostic in the OEM software and check the supply, wiring and seating of the module. If the unit still faults, send it to us for repair.

ISO 9001:2015 certified (Puducherry) · Refurbishment authorisation from the Puducherry Pollution Control Committee · 25+ years · Pondicherry, Chennai, Bengaluru, Hyderabad

Brand names and part numbers belong to their owners and are used only to identify parts. Star Automations is an independent supplier and repairer.