Hi Mahdi,
From a quick Gemini search (unchecked as I’m on holiday) the following should
give you the certificates and proofs you need:
Yes, Beckhoff’s official documentation and TÜV SÜD certifications explicitly
confirm that the transmission path (including any standard EtherCAT master) is
treated strictly as a Black Channel and carries no functional safety
requirements.
Here are the specific certificate references, standards, manual citations, and
direct URLs for your documentation records:
1. TÜV SÜD Certificates & Assessment Reports
* TÜV SÜD Certificate No. Z10 15 03 62386 033<tel:15%2003%2062386%20033> /
Z10 062386 0037<tel:062386%200037>:
* Holder: Beckhoff Automation GmbH & Co. KG
* Product/Models: TwinSAFE Logic & I/O Components (e.g., EL6900, EL6930,
KL6904)
* Standards Tested: IEC 61508-1..3 (SIL 3), EN ISO 13849-1 (Cat 4, PL e)
* Key Verdict: Confirms safety logic execution is isolated to the
TwinSAFE endpoints, allowing safe data transfer across uncertified network
nodes.
* Direct Certificate PDF:
https://www.tuvsud.com/de-de/-/media/de/rail/pdf/z10-zertifikat/ts-rs_z10-15-03-62386-033.pdf
* General Beckhoff Certificate
Repository:https://download.beckhoff.com/download/document/certificates/z10_062386_0037.pdf
2. Normative Standards & Specifications
* IEC 61784-3-12 (FSCP 12): The international standard defining Safety over
EtherCAT. Formally specifies the Black Channel principle, confirming the
underlying master/communication stack is excluded from safety calculations.
* Standard Details:
https://webstore.iec.ch/publication/67215<https://www.google.com/search?q=https://webstore.iec.ch/publication/67215>
* ETG.5100 (Safety over EtherCAT Specification): Defines the FSoE frame
layout (safe user data, connection ID, sequence number, CRC).
* EtherCAT Technology Group Spec
Download:https://www.ethercat.org/en/downloads.html?search=ETG.5100<https://www.google.com/search?q=https://www.ethercat.org/en/downloads.html%3Fsearch%3DETG.5100>
3. Beckhoff Documentation & Technical Guides
* Safety over EtherCAT (FSoE) Technology Overview: Outlines protocol
encapsulation, Black Channel mechanics, and master-independence.
* Direct Overview PDF:
https://www.ethercat.org/download/documents/Safety-over-EtherCAT_Introduction.pdf
* Beckhoff TwinSAFE Hardware Manuals (e.g., EL6910 / EL6900 Logic
Terminals): Documents the requirement for safety endpoints and verifies that
standard EtherCAT masters pass container data transparently without needing
safety-critical code.
* EL6910 Hardware Manual
PDF:https://download.beckhoff.com/download/document/automation/twinsafe/el6910_en.pdf
* Beckhoff Application Guide
PDF:https://download.beckhoff.com/download/document/automation/twinsafe/TwinSAFE_AppGuide_en.pdf<https://www.google.com/search?q=https://download.beckhoff.com/download/document/automation/twinsafe/TwinSAFE_AppGuide_en.pdf>
Regards,
Graeme.
________________________________
From: Etherlab-users <[email protected]> on behalf of مهدي
النّوني (Mahdi) <[email protected]>
Sent: Tuesday, August 4, 2026 8:21 PM
To: [email protected] <[email protected]>
Subject: [Etherlab-users] IgH master + FSoE black channel — written compliance
reference?
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Hi all,
We're using the IgH EtherCAT Master to relay FSoE black-channel frames between
an EK6910 (TwinSAFE Logic Coupler) and its safety slaves — safety logic
configured/downloaded via TwinCAT, PDOs mapped manually in the IgH master,
following the approach described in the 2019 "Usage of IgH EtherCAT Master for
Safety" thread.
For our safety file, we'd love something citable confirming the master needs no
certification under IEC 61784-3, since it performs no safety function on the
FSoE container itself.
A couple of questions, if anyone can help:
Is there an official IgH/ETG statement or document addressed to master
vendors/integrators we could reference, beyond the general FSoE intro PDF?
Has anyone here taken this IgH + EK6910 setup through a functional safety audit
or CE/machine certification — and if so, what did the assessor accept as
evidence for the master's role?
Thanks in advance for any pointers — really appreciate this community.
Best regards,
[cid:b56275b6-f30c-4d84-b74e-5bb33c4a546b]
Mehdi Nouni
Robotics Engineer
E-mail : [email protected]<mailto:[email protected]>
Tel : +216 57 02 76 01<tel:+216%2057%2002%2076%2001>
Address:
68,Rue 8601
Z.I.La Charguia1
2035Tunis
Ben Salem Automation SUARL
Tax-ID: 1809118N
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