Hi all,

today I tried filling the missing gaps in S7DataType ... so I created a little 
program that requested all possible values for datatypes (256 of them) and 
evaluated how the S7 device reacts on them.
So I did find 1 or 2 new codes (WCHAR, for example) but it seems that while INT 
is supported as Numeric type, SINT and USINT isn’t directly available as code 
in the S7 protocol.

I did some experiments to request SINT as BYTE and that worked, but it sort of 
feels strange.

Anyone else got information on this?

Chris

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