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Posted to issues@plc4x.apache.org by "Łukasz Dywicki (Jira)" <ji...@apache.org> on 2021/08/25 08:56:00 UTC

[jira] [Updated] (PLC4X-311) ADS driver lost with short replies for read requests

     [ https://issues.apache.org/jira/browse/PLC4X-311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Łukasz Dywicki updated PLC4X-311:
---------------------------------
    Attachment: amsads-shortanswer.pcapng

> ADS driver lost with short replies for read requests
> ----------------------------------------------------
>
>                 Key: PLC4X-311
>                 URL: https://issues.apache.org/jira/browse/PLC4X-311
>             Project: Apache PLC4X
>          Issue Type: Bug
>          Components: Driver-ADS
>    Affects Versions: 0.9.0
>            Reporter: Łukasz Dywicki
>            Priority: Major
>              Labels: regresion
>         Attachments: amsads-shortanswer.pcapng
>
>
> I began testing functionality which did work with ADS driver in 0.6 release. Part of the test was reading address {{0xf00f/0x0}} (it is elsewhere referred as {{SYM_UPLOADINFO2}}) which returns 8 bytes. First 4 is symbol count, last 4 is symbol list length. 
> It turns out that for short answer PLC response contains only data and not index group and offset. I attach PCAP which clearly indicates issue..



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