Expose protocol overhead size for requests
scamille opened this issue · 1 comments
I want to split my large data reading/writing requests into smaller chunks, similar to https://github.com/S7NetPlus/s7netplus/blob/051091919fa80b03989f4375e364ebc4b02aabe7/S7.Net/PlcAsynchronous.cs#L106
For that I need to know at what size to split my data into chunks.
I can get at the PDU from the IS7ConnectionParameters, that's great.
What I am missing are those magic numbers of protocol overhead for a request & per data item. I don't want to hardcode these, and since you have such well-organized data types for all your protocol code, would it be possible to expose the size of those structs somewhere, eg. in a static class?
Oh and I guess just to be on the safe side: Is the overhead of sending the read request larger than the overhead required for receiving the response?
In the end the only thing that I really care about is the maximum number of bytes payload I can put into a request, whatever part in there is the limiting factor.