blockBooleanChange

Indicate Boolean signal changing
Diagram of BooleanChangeOpen the diagram
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Extends from Clocked.ClockSignals.Interfaces.ClockedBlockIcon (Basic graphical layout of block where at least one input or output is a clocked variable).

Information

This block is a synchronous version of Modelica.Blocks.Math.BooleanChange. It uses previous instead of the implicit pre of change to set the Boolean output y to true when the boolean input u changed. Thus, it's logic is:

if firstTick() then
  y = false;
else
  y = not (u == previous(u));
end if;

This block might be superfluous and replaced by Modelica.Blocks.Math.BooleanChange when the semantics of change are relaxed and well-defined for clocked discrete-time partitions.

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.BooleanInputuConnector of Boolean input signal.
Modelica.Blocks.Interfaces.BooleanOutputyConnector of Boolean output signal.