Hi Lukasz,

Initially we were planning on supporting a "browse" functionality alongside the 
"read", "write" and "subscribe" ... 
might that be more what you are referring to?

Chris


Am 30.04.20, 21:54 schrieb "Łukasz Dywicki" <[email protected]>:

    Hey,
    I been going through some ideas what could be improved here and there
    after doing my ADS try outs and come to following.

    Current API for PlcConnectionMetadata offers few basic canRead,
    canWrite, canSubscribe methods. It does not offer any api to read plc
    kind or symbol, even if some drivers do discover device kind. For
    comparison, with JDBC, we have few more options when we fetch metadata -
    ie. java.sql.DataBaseMetadata#getTypeInfo, #getTables, #getColumns and
    so on. I tend to opt for TypeInfo and Columns (symbols) as first class
    citizens which we can make.

    Currently protocols which can handle metadata requests can not support
    discovery of available symbols cause there is no way to supply that.
    This is something possible with ADS, for sure also with OPC UA. It
    shouldn't be to hard to provide one.

    Best regards,
    Łukasz

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