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Wed Nov 19 16:40:31 CET 2008

I/O delays in Digital Control

I got a bit confused by conversations about latencies of digital
control systems, but it is quite straightforward:

For a synchronously sampled control system with input and output
updated at t:0,1,... the input data sampled at t=0 can only influence
actuation at t=1 (when process delay Z=1) and as such the effect of
this actuation can only be measured at t=2.



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