Hi Niclas,

well I wouldn’t say that we should do just Master. I guess right now 
development has been driven by the use case. And the probably most important 
use case for me was reading from an S7. One use case down the S7 road that I 
would like to implement soon is that a client using PLC4X can subscribe for 
Alarm messages and Parameter values of a S7 PLC and that then actively sends 
data to PLC4X. Would that be called “slave”? If it is, I guess both are highly 
important, just haven’t got to the point of implementing that. 

Chris



Am 31.12.17, 05:02 schrieb "[email protected] im Auftrag von Niclas Hedhman" 
<[email protected] im Auftrag von [email protected]>:

    I am getting the impression that only "Master" side of these protocols are
    in scope. Or?
    
    In any case, I have previously made a C library for ModBus (from spec), and
    I could see if it is worth dusting off and contribute. Is it of interest,
    or? It might not be complete, and I recall it follows a OO-style of C
    programming that not everyone appreciate.
    
    
    Cheers
    -- 
    Niclas Hedhman, Software Developer
    http://polygene.apache.org - New Energy for Java
    

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