DEL – Delay with initialization

Block SymbolLicensing group: STANDARD

Function Description
The DEL block implements a delay of the input signal u. The signal is shifted n samples backwards, i.e.

y_{k} = u_{k - n} .

The corresponding time delay is $n \cdot T_{S}$ , where $T_{S}$ is the block trigger period.

If the last n samples are not yet known, the output is set to

y_{k} = y_{0},

where $y_{0}$ is the initialization input signal. This can happen after restarting the control system or after resetting the block (R1: off $\to$ on $\to$ off) and it is indicated by the output $RDY = off$ .

This block propagates the signal quality. More information can be found in the 1.4 section.

Input

u	Analog input of the block	Double (F64)
R1	Block reset	Bool
y0	Initial output value	Double (F64)

Parameter

n	Delay [samples] $↓$ 0 $↑$ 10000000 $⊙$ 10	Long (I32)
nmax	Allocated size of array $↓$ 10 $↑$ 10000000 $⊙$ 100	Long (I32)

Output

y	Delayed input signal	Double (F64)
RDY	Outputs valid (ready flag)	Bool

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