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https://issues.apache.org/jira/browse/PLC4X-318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17430490#comment-17430490
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Christofer Dutz commented on PLC4X-318:
---------------------------------------

Even with UTF-8, if you don't restrict the size of the string, it will not work 
on a S7 1200. The String size is 255 and the PDU Size is 240 ...

> S7 Cannot write string
> ----------------------
>
>                 Key: PLC4X-318
>                 URL: https://issues.apache.org/jira/browse/PLC4X-318
>             Project: Apache PLC4X
>          Issue Type: Bug
>          Components: Driver-S7
>    Affects Versions: 0.9.0
>            Reporter: LiuYuHang
>            Priority: Major
>         Attachments: image-2021-10-19-10-59-25-868.png
>
>
> Exception thrown when writing string type: java.nio.bufferoverflow exception



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