Buildings.Utilities.Controls.BaseClasses

Package Content

Name	Description
PartialInputCheck	Assert when condition is violated

Buildings.Utilities.Controls.BaseClasses.PartialInputCheck

Information

Partial model that can be used to check whether its inputs satisfy a certain condition such as equality within a prescribed threshold.

Parameters

Type	Name	Default	Description
Time	startTime	0	Start time for activating the assert [s]
Real	threShold	1E-2	Threshold for equality comparison
String	message	"Inputs differ by more than ...

Connectors

Type	Name	Description
input RealInput	u1	Value to check, equal to 0 if unconnected
input RealInput	u2	Value to check, equal to 0 if unconnected

Modelica definition

block PartialInputCheck "Assert when condition is violated" 
  extends Modelica.Blocks.Interfaces.BlockIcon;
  parameter Modelica.SIunits.Time startTime = 0 
    "Start time for activating the assert";
  parameter Real threShold(min=0)=1E-2 "Threshold for equality comparison";
  parameter String message = "Inputs differ by more than threShold";
protected 
  parameter Modelica.SIunits.Time t0( fixed=false) "Simulation start time";
public 
  Modelica.Blocks.Interfaces.RealInput u1 
    "Value to check, equal to 0 if unconnected";
  Modelica.Blocks.Interfaces.RealInput u2 
    "Value to check, equal to 0 if unconnected";
initial equation 
  t0 = time + startTime;
equation 
  if cardinality(u1)==0 then
    u1 = 0;
  end if;
  if cardinality(u2)==0 then
    u2 = 0;
  end if;
end PartialInputCheck;