SIMPLORER User Manual V6.0 - FER-a

8
260 Using Signal Characteristics
Fall Time
Start Time [s] TSTART real
Stop Time [s] TSTOP real
Component Outputs
Description [Unit] Parameter Name Data Type
Rise Time (signal occurring in the given time interval) [s] VAL real
>>Basics>Signal Characteristics>Dynamic Behavior Parameters
The macro provides the fall time of a variable, in the case the final value of the variable in
steady state has to be known. The fall time calculation starts at 90% of final value and ends
at 10%. The rise time calculation is a non recurring operation within a specified interval
Selecting a start time TSTART greater than zero, possibly occurring transient phenomena at
the beginning can be suppressed. TSTART and TSTOP have to be within'0' and the simulation
end time TEND.
tFALL = t2 – t1 INPUT = x
TSTART < t < TSTOP
DERIV = x'
t
t
=
=
t1 if x ≥ 0 ∧ x' < 0 ∧ x = 0.1 ⋅ FINALVAL
if x ≥ 0 ∧ x' < 0 ∧ x =
0.9 ⋅ FINALVAL
t 2
Dialog Settings
«Input Signal»
Enter a quantity name used in your model sheet in the text box to define the input signal
(RLOAD.I, STEP.VAL, STATE.ST, VAR) or use the pin to connect a quantity. Please note: You
cannot use conservative nodes from circuits as input signal (N0002, GND).
� � «Use Pin»
If the box is checked, the input signal is defined by the quantity connected to the pin, otherwise
the value in the text box is used.
«Derivation of Input Signal»
Enter name and qualifier of the first derivation of the input signal in the text box. Many SIM-
PLORER components provides this value, e.g. R1.dI, TRISE1.dVAL.
«Maximum Value»
Common parameter type. Enter a numerical value, a variable, or an expression in the text box.
«Start Time [s]»«Stop Time [s]»
Common parameter type. Enter a numerical value, a variable, or an expression in the text box.
The specified start time (for beginning of calculation) has to be less than the end time (for end
of calculation).
Component Parameters
Description [Unit] Parameter Name Data Type
Input Signal (the fall time is to be obtained from) INPUT real
Derivative of Input Signal (for determination of rise or fall) DERIV real
Final Value of Input Signal in Steady State (signal in steady FINALVAL
state)
real