Hi Chris,

I already loaded the information into a jira.

I hope the information is useful to you.

Best regards


El dom., 5 ene. 2020 a las 4:40, Christofer Dutz (<[email protected]>)
escribió:

> Hi Cesar,
>
> Could you please create a jira issue and attach the pcaps there? The
> mailinglist doesn't let attachments pass :-(
>
> But thanks for creating them :-)
>
> Chris
> ------------------------------
> *Von:* César García <[email protected]>
> *Gesendet:* Samstag, 4. Januar 2020 23:48:38
> *An:* Apache PLC4X <[email protected]>
> *Betreff:* Re: [Help Needed] A little help with some fact-checking for S7
> write requests
>
> Hi,
>
> I attach the requested WireShark pcap.
>
> S7-1200 : 192.168.1.33
> S7-300 : 192.168.1.23
> S7-400 : 192.168.1.10
>
> Write to DB17, DB85 and DB255.
>
> Write to EB0.
>
>
> I hope the information is useful.
>
> Best regards.
>
>
>
>
> Enviado mediante Bandeja de entrada de BlackBerry Hub+ para Android
>
>
>   Mensaje original
>
>
> De: [email protected]
> Enviados: 4 de enero de 2020 12:54
> Para: [email protected]
> Responder a: [email protected]
> Asunto: Re: [Help Needed] A little help with some fact-checking for S7
> write requests
>
>
> Hi Cesar,
>
> you are officially my hero :-)
>
> Thanks,
>      Chris
>
> Am 04.01.20, 17:47 schrieb "César García" <[email protected]>:
>
>     Hi Chris,
>
>
>     I am currently testing with TIA Portal V15 and generated the request
> simulating a TP1200 panel.
>
>     I will perform the tests you point out and send you the WireShark
> capture. I will perform the test battery against the S7-1200, S7-300 and
> S7-400.
>
>     Best regards,
>
>
>     Enviado mediante Bandeja de entrada de BlackBerry Hub+ para Android
>
>
>       Mensaje original
>
>
>     De: [email protected]
>     Enviados: 4 de enero de 2020 12:24
>     Para: [email protected]
>     Responder a: [email protected]
>     Asunto: Re: [Help Needed] A little help with some fact-checking for S7
> write requests
>
>
>     Hi Cesar,
>
>     with which tool are you writing to the S7?
>
>     Well in general the patterns would be:
>     - Writing multiple addresses in one request
>     - Writing an array of elements in one request
>     - Writing multiple arrays of elements in one request
>     - Writing a byte to 8 boolean inputs (Instead of an array of 8 bits)
>
>     Would also be perfect if you could provide us with a wireshark dump of
> the request and response packets in these cases.
>
>     The current driver has the probably worst performance when writing as
> everything is broken down into single address, single element reuqests.
>
>     Thanks,
>
>     Chris
>
>
>
>
>     Am 04.01.20, 16:16 schrieb "César García" <[email protected]>:
>
>         Hi Chris,
>
>         I am testing what was requested with a cpu 1214C.
>
>         The 1200 PLC can receive several items and confirm its writing of.
>
>
>         Each item is confirmed individually as does the S7-300 / 400.
>
>         If you have a specific writing pattern that you need to try, I am
> at your service.
>
>         Best regards,
>
>
>         Enviado mediante Bandeja de entrada de BlackBerry Hub+ para Android
>
>
>           Mensaje original
>
>
>         De: [email protected]
>         Enviados: 3 de enero de 2020 17:56
>         Para: [email protected]
>         Responder a: [email protected]
>         Asunto: [Help Needed] A little help with some fact-checking for S7
> write requests
>
>
>         Hi all,
>
>         I am currently porting the S7 query sanitizer to the new S7 driver.
>         When implementing the initial S7 driver more than 3 years ago I
> noticed my S7 1200 would accept write requests with multiple addresses and
> with arrays, however I would only get a return code OK for the first
> element of the first address.
>         So I implemented some code to split write requests into single
> address and single item write requests. A guy from the SPS forum confirmed
> that an S7 1200 would only accept single item write requests.
>
>         I am however not 100% sure if this limitation is actually true and
> if it applies to all S7 devices the same way.
>
>         I would be very happy if you could perhaps verify, confirm or
> falsify my knowledge on this.
>         Being able to send arrays or multiple addresses would extremely
> speed up communication.
>
>         Chris
>
>
>
>
>

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