What are the different standards for different layers of fieldbus?
User layer: • Function Blocks: FF-890, 891, 892 • Device Description Language: FF-900 • Application layer: IEC61158-5, 6 • Datalink layer: IEC61158-3,4 • Physical layer: IEC61158-2 more.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.
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