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https://issues.apache.org/jira/browse/PLC4X-274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17271768#comment-17271768
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liuqiang commented on PLC4X-274:
--------------------------------

thank you for your reply. it is very helpful. another question. why there is 
not have float type. only Float type,BUT have  both long type and Long type in 
opm of plc4j.

> org.apache.plc4x.java.opm.OPMException: Timeout during fetching values
> ----------------------------------------------------------------------
>
>                 Key: PLC4X-274
>                 URL: https://issues.apache.org/jira/browse/PLC4X-274
>             Project: Apache PLC4X
>          Issue Type: Bug
>          Components: Driver-S7
>    Affects Versions: 0.8.0
>         Environment: WIN10-X64 、java8
>            Reporter: liuqiang
>            Assignee: Julian Feinauer
>            Priority: Major
>              Labels: documentation-update
>         Attachments: error-message.txt
>
>
> When use OPM of plc4j,sometimes meet error 
> “org.apache.plc4x.java.opm.OPMException: Timeout during fetching 
> values”。maybe one item was got more fetche request(in different threads)at a 
> time。



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