I'm having trouble with the sample time when passing data from Simulink to the Workspace using the To Workspace block.
I have an electrical circuit (with PLECS blockset) and I'm measuring a voltage in a certain point. The measure this voltage I defined a sample time of Ts=1/(50*256)=7.8125e-5 using a ZOH block (The election of this sample time is from a real life voltmeter). The simulation is set for continouos time, so the output of the ZOH is a continouos stepped signal with steps every Ts seconds. The result of the simulation is shown below with a time span of 5*Ts.
This signal is passed to a To Workspace block with the sample time set to Ts, but the arrays I'm getting in the workspace aren't entirely correct.
Also:
Limit data points to last = inf
Decimation = 1
Log fixed-point data as a fi object is checked
If I use the Cursor Measurments of the Simulink scope, the values in each step are:
[0.000, 0.257, 0.983, 2.224, 3.720]
But when I print this array from the workspace I get:
[0.000, 0.257, 0.983, 0.983, 3.7204]
In the bolded data point, the simulation time should be, 3*Ts = 2.34375e-4 [s] and the value should be 2.224. I believe that for some reason, the time it is evaluating is 2.3437e-4 [s] < 2.34375e-4 [s] getting the previous value of 0.983.
Is this because the time values are fixed point decimals? Or because in the continouos time array the point 2.34375e-4 [s] doesn't exist?
Thanks in advance!
