ZeroCrossing
Trigger zero crossing of input u
Library
Modelica/Blocks/Logical
Description
The output "y" is true at thetime instant when the input "u" becomeszero, provided the input "enable" istrue. At all other time instants, the output "y" is false.If the input "u" is zero at a time instant when the "enable"input changes its value, then the output y is false.
Note, that in the plot window of a Modelica simulator, the output ofthis block is usually identically to false, because the outputmay only be true at an event instant, but not duringcontinuous integration. In order to check that this component isactually working as expected, one should connect its output to, e.g.,component Modelica.Blocks.Discrete.TriggeredSampler.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo__nmodifiers | Number of Modifiers | Specifies the number of modifiers | Number | |
mo__modifiers | Modifiers | Add new modifier | Structure | |
mo__modifiers/varname | Variable name | Cell of strings | 'disable' | |
mo__modifiers/attribute | Attribute | Cell of strings | 'start' | |
mo__modifiers/value | Value |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
y | implicit | Connector of Boolean output signal | output | 1 |
u | implicit | input | 1 | |
enable | implicit | Zero input crossing is triggered if the enable input signal is true | input | 2 |