block Add3 "Output the sum of the three inputs"
extends Modelica.Blocks.Icons.Block;
parameter Real k1 = 1 "Gain of input signal 1";
parameter Real k2 = 1 "Gain of input signal 2";
parameter Real k3 = 1 "Gain of input signal 3";
Interfaces.RealInput u1 "Connector of Real input signal 1"
annotation (Placement(transformation(extent = {
{-140, 60},
{-100, 100}})));
Interfaces.RealInput u2 "Connector of Real input signal 2"
annotation (Placement(transformation(extent = {
{-140, -20},
{-100, 20}})));
Interfaces.RealInput u3 "Connector of Real input signal 3"
annotation (Placement(transformation(extent = {
{-140, -100},
{-100, -60}})));
Interfaces.RealOutput y "Connector of Real output signal"
annotation (Placement(transformation(extent = {
{100, -10},
{120, 10}})));
equation
y = k1 * u1 + k2 * u2 + k3 * u3;
annotation (
Documentation(info = "<html>\n<p>\nThis blocks computes output <strong>y</strong> as <em>sum</em> of the\nthree input signals <strong>u1</strong>, <strong>u2</strong> and <strong>u3</strong>:\n</p>\n<pre>\n <strong>y</strong> = k1*<strong>u1</strong> + k2*<strong>u2</strong> + k3*<strong>u3</strong>;\n</pre>\n<p>\nExample:\n</p>\n<pre>\n parameter: k1= +2, k2= -3, k3=1;\n\n results in the following equations:\n\n y = 2 * u1 - 3 * u2 + u3;\n</pre>\n\n</html>"),
Icon(
coordinateSystem(
preserveAspectRatio = true,
extent = {
{-100, -100},
{100, 100}}),
graphics = {
Text(
extent = {
{-100, 50},
{5, 90}},
textString = "%k1"),
Text(
extent = {
{-100, -20},
{5, 20}},
textString = "%k2"),
Text(
extent = {
{-100, -50},
{5, -90}},
textString = "%k3"),
Text(
extent = {
{2, 36},
{100, -44}},
textString = "+")}),
Diagram(
coordinateSystem(
preserveAspectRatio = true,
extent = {
{-100, -100},
{100, 100}}),
graphics = {
Rectangle(
extent = {
{-100, -100},
{100, 100}},
lineColor = {0, 0, 255},
fillColor = {255, 255, 255},
fillPattern = FillPattern.Solid),
Text(
extent = {
{-100, 50},
{5, 90}},
textString = "k1"),
Text(
extent = {
{-100, -20},
{5, 20}},
textString = "k2"),
Text(
extent = {
{-100, -50},
{5, -90}},
textString = "k3"),
Text(
extent = {
{2, 46},
{100, -34}},
textString = "+")}));
end Add3;