User`s guide

Delay and Latency
3-95
The first column of yout is the Simulink time provided by the Digital Clock
block. The four values to the right of each time are the values in the output
frame at that time. You can see that the first sample in each of the first four
output frames inherits the value of the block’s
Initial conditions parameter.
As a result of the tasking latency, the first input value appears only as the first
sample of the 5th output frame (at t=1), which is sample 17.
Example: Zero Tasking Latency. Now try the previous example in Simulink’s
single-tasking mode. The model and all of the block parameter settings are the
same.
To engage Simulink’s single-tasking mode, adjust the following settings in the
Solver panel of the Simulation Parameters dialog box:
Type = Fixed-step
Mode = SingleTasking
When does the first input sample appear in the output?
time
ans =
0 -1.0000 0 0 0
0.2500 -1.0000 0 0 0
0.5000 -1.0000 0 0 0
0.7500 -1.0000 0 0 0
1.0000 1.0000 0 0 0
1.2500 2.0000 0 0 0
1.5000 3.0000 0 0 0
1.7500 4.0000 0 0 0
2.0000 5.0000 0 0 0
1st output frame
5th output frame