Hi Cesar,

I think PING is already built in. And the others are generally a use-case, 
right? If you simply subscribe to the start/stop state, it will report that …if 
you subscribe to diagnostic information you’ll get it. Or are you proposing to 
fully integrate that into the driver and for example to expose that via 
connection meta-data? If yes - I’d declare that out of scope for my current 
work. Feel free to implement that once I’ve merged my changes back.

Little video on the S7H stuff :-)

https://www.linkedin.com/posts/christofer-dutz_tldr-high-availability-s7h-s7-with-redundancy-activity-7458125410468450304-JSrO<https://www.linkedin.com/posts/christofer-dutz_tldr-high-availability-s7h-s7-with-redundancy-activity-7458125410468450304-JSrO?utm_source=share&utm_medium=member_desktop&rcm=ACoAAApK4dwBJHh87qkU8IA4A06nqJn9XqPZJU8>
Or:
https://www.youtube.com/watch?v=NlsQGsEaFYg

Chris

Von: Cesar Garcia <[email protected]>
Datum: Donnerstag, 7. Mai 2026 um 01:31
An: [email protected] <[email protected]>
Betreff: Re: [SPI3] Work on a new unified S7 driver

Hi everyone,

Excellent work Chris,

Looking forward to testing the modification.

In our part of the world, the installed base of S7-300 and S7-400 is still
very large, so these features are important as they increase the
reliability of the transferred information.

I would add the following features:

. CPU status detection (start/stop state).
. Diagnostic buffer messages (system and user messages).
. Channel monitoring (ping)

Best regards,



El mié, 6 may 2026 a las 14:42, Christofer Dutz (<[email protected]>)
escribió:

> Hi all,
>
> I just wanted to take the opportunity to thank Cesar for the improvements
> he added to the S7 driver.
> I am not sure you all understand what he actually added and he never
> really advertised it to me that I grasped it.
>
>
>   *
> Alarming (S7 300 and 400 support alarming … this is like a subscription to
> an Event where the client is instantly notified once the event happens …
> this is really cool … unfortunately it only works with the old boys)
>   *
> Cyclic Data Exchange: Also only S7-300 and 400 … they generally support
> cyclic subscriptions
>   *
> S7H: High-availability connection to special S7 devices, that maintain
> multiple connections in parallel to provide redundancy and fault tolerance.
>
> So far I’m making good progress merging the S7 and S7-light back together
> and to SPI3 … I hope over the weekend I’ll be able to drop that driver too
> :-)
>
> Chris
>


--
*CEOS Automatización, C.A.*
*GALPON SERVICIO INDUSTRIALES Y NAVALES FA, C.A.,*
*PISO 1, OFICINA 2, AV. RAUL LEONI, SECTOR GUAMACHITO,*

*FRENTE A LA ASOCIACION DE GANADEROS,BARCELONA,EDO. ANZOATEGUI*
*Ing. César García*

*Cel: +58 414-760.98.95*

*Hotline Técnica SIEMENS: 0800 1005080*

*Email: [email protected]
<[email protected]>*

Reply via email to