The following example samples a sine signal with an amplitude of 2.0 with a periodic clock of 20 ms period and delays it for 2 sample periods. The resulting signal is hold with the HoldWithDAeffects block. As a result, the clock of hold.u starts ticking at 40 ms. The output hold.y of the block is a continuous-time signal that is present from the start of the simulation. Before the first tick of the clock of hold.u, it is set to 0.5 (= the value of parameter hold.y_start). Additionally, the following effects are added to the hold block:
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model | simulation result |
Due to the limitation of the output signal, the values of hold.u ≥ 1.9
are limited to 1.9.
If the hold output is delayed by one sample period, then the previous(..) value of the
input is output, and the first tick is delayed by one sample period,
as shown by the
modified example
from above:
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model | simulation result |
Note, the computational delay of one sample period is defined
by shiftCounter=1, resolution=1, as shown in the icon of the
hold block.