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https://issues.apache.org/jira/browse/PLC4X-154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17402375#comment-17402375
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Alessandro Rossignoli commented on PLC4X-154:
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[~lemariva] the solution of using BYTE[8] is working in my case, of course you
then have to take the 8 bytes and cast them to a Double.
The address I am using is formatted like this:
{color:#93cbff}%DB55.DBB546.0:BYTE[8]{color}
{color:#172b4d}Did you remember to change DBX -> DBB ?{color}
{color:#172b4d}[~cdutz] {color}
> Reading LREAL from S7 causes PlcRuntimeException
> ------------------------------------------------
>
> Key: PLC4X-154
> URL: https://issues.apache.org/jira/browse/PLC4X-154
> Project: Apache PLC4X
> Issue Type: Bug
> Affects Versions: 0.4.0
> Environment: S7-1500 PLC
> Reporter: Sebastian Wiendl
> Priority: Major
>
> Reading an LREAL in my demo project
> https://github.com/sewiendl/plc4j-demo/tree/feature/read-lreal causes the
> following
> exception:{code}org.apache.plc4x.java.api.exceptions.PlcRuntimeException:
> Field 'LReal' could not be fetched, response was INVALID_DATATYPE
> at
> org.apache.plc4x.java.base.messages.DefaultPlcReadResponse.getFieldInternal(DefaultPlcReadResponse.java:577)
> at
> org.apache.plc4x.java.base.messages.DefaultPlcReadResponse.getObject(DefaultPlcReadResponse.java:81)
> at com.example.plc4jdemo.Main.main(Main.java:39){code}The field was
> added with {code} builder.addItem("LReal",
> "%DB101.DBX110:LREAL");{code}
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