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https://issues.apache.org/jira/browse/PLC4X-335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17495634#comment-17495634
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Łukasz Dywicki commented on PLC4X-335:
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If I understand correctly this issue is about remaining data which made
miss-alignment of remaining buffer data. From openHAB end I remember that it is
possible to define an "offset" while reading small types (bit/int/uint8), it
also makes it possible to read ie. component spanning over MSB and LSB of 2
registers. How does this part look now for us - do we have now a byte_mfb and
byte_lsb? :)
> Using single-byte modbus types resulted in unexpected behaviour
> ---------------------------------------------------------------
>
> Key: PLC4X-335
> URL: https://issues.apache.org/jira/browse/PLC4X-335
> Project: Apache PLC4X
> Issue Type: Bug
> Components: Driver-Modbus
> Affects Versions: 0.9.0
> Reporter: Christofer Dutz
> Assignee: Christofer Dutz
> Priority: Major
> Fix For: 0.10.0
>
>
> When reading single-byte values via Modbus, the driver unexpectedly created
> lists.
> This was due to the fact, that in the DataIo module these types were aligned
> to 8bits and not 16bits as it's the case in Modbus.
> By increasing the reserved field for BIT to 15 bit and by adding a reserved
> byte to the BYTE, USINT and SINT types we're able to fix this issue.
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