Buildings.Controls.OBC.CDL.Integers

Package with blocks for integer variables

Information

Package with blocks for elementary mathematical functions for integer variables.

Package Content

Name	Description
Abs	Output the absolute value of the input
Add	Output the sum of the two inputs
AddParameter	Output the sum of an input plus a parameter
Change	Output whether the Integer input changes values, increases or decreases
Equal	Output y is true, if input u1 is equal to input u2
Greater	Output y is true, if input u1 is greater than input u2
GreaterEqual	Output y is true, if input u1 is greater or equal than input u2
GreaterEqualThreshold	Output y is true, if input u is greater or equal than threshold
GreaterThreshold	Output y is true, if input u is greater than a threshold
Less	Output y is true, if input u1 is less than input u2
LessEqual	Output y is true, if input u1 is less or equal than input u2
LessEqualThreshold	Output y is true, if input u is less or equal than a threshold
LessThreshold	Output y is true, if input u is less than a threshold
Max	Pass through the largest signal
Min	Pass through the smallest signal
MultiSum	Sum of Integers, y = k[1]*u[1] + k[2]*u[2] + ... + k[n]*u[n]
Multiply	Output product of the two inputs
OnCounter	Increment the output if the input switches to true
Stage	Output total stages that should be enabled
Subtract	Output the difference of the two inputs
Switch	Switch between two integer signals
Sources	Package with blocks that generate source signals
Validation	Collection of models that validate the integer blocks of the CDL

Buildings.Controls.OBC.CDL.Integers.Abs

Output the absolute value of the input

Information

Block that outputs y = abs(u), where u is an Integer input.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Add

Output the sum of the two inputs

Information

Block that outputs y as the sum of the two Integer input signals u1 and u2,

    y = u1 + u2.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.AddParameter

Output the sum of an input plus a parameter

Information

Block that outputs y = u + p, where p is parameter and u is an input.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Change

Output whether the Integer input changes values, increases or decreases

Information

Block that evaluates the integer input u to check if its value changes.

• When the input u changes, the output y will be true, otherwise it will be false.
• When the input u increases, the output up will be true, otherwise it will be false.
• When the input u decreases, the output down will be true, otherwise it will be false.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Equal

Output y is true, if input u1 is equal to input u2

Information

Block that outputs true if the Integer input u1 is equal to the Integer input u2. Otherwise the output is false.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Greater

Output y is true, if input u1 is greater than input u2

Information

Block that outputs true if the Integer input u1 is greater than the Integer input u2. Otherwise the output is false.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.GreaterEqual

Output y is true, if input u1 is greater or equal than input u2

Information

Block that outputs true if Integer the input u1 is greater than or equal to the Integer input u2. Otherwise the output is false.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.GreaterEqualThreshold

Output y is true, if input u is greater or equal than threshold

Information

Block that outputs true if the Integer input is greater than or equal to the parameter t. Otherwise the output is false.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.GreaterThreshold

Output y is true, if input u is greater than a threshold

Information

Block that outputs true if the Integer input is greater than the parameter t. Otherwise the output is false.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Less

Output y is true, if input u1 is less than input u2

Information

Block that outputs true if the Integer input u1 is less than the Integer input u2. Otherwise the output is false.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.LessEqual

Output y is true, if input u1 is less or equal than input u2

Information

Block that outputs true if the Integer input u1 is less than or equal to the Integer input u2. Otherwise the output is false.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.LessEqualThreshold

Output y is true, if input u is less or equal than a threshold

Information

Block that outputs true if the Integer input is less than or equal to the parameter t. Otherwise the output is false.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.LessThreshold

Output y is true, if input u is less than a threshold

Information

Block that outputs true if the Integer input is less than the parameter t. Otherwise the output is false.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Max

Pass through the largest signal

Information

Block that outputs y = max(u1, u2), where u1 and u2 are inputs.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Min

Pass through the smallest signal

Information

Block that outputs y = min(u1, u2), where u1 and u2 are inputs.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.MultiSum

Sum of Integers, y = k[1]*u[1] + k[2]*u[2] + ... + k[n]*u[n]

Information

Block that outputs

y = ∑_i=1ⁿ k_i   u_i,

where k is a parameter with n elements and u is an input of the same length. The dimension of u can be enlarged by drawing an additional connection line. The connection is automatically connected to this new free index.

If no connection to the input connector u is present, the output is y=0.

See Buildings.Controls.OBC.CDL.Integers.Validation.MultiSum for an example.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Multiply

Output product of the two inputs

Information

Block that outputs y = u1 * u2, where u1 and u2 are Integer inputs.

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.OnCounter

Increment the output if the input switches to true

Information

Block that outputs how often the trigger input changed to true since the last invocation of reset.

This block may be used as a counter. Its output y starts at the parameter value y_start. Whenever the input signal trigger changes to true, the output is incremented by 1. When the input reset changes to true, then the output is reset to y = y_start. If both inputs trigger and reset change simultaneously, then the ouput is y = y_start.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Stage

Output total stages that should be enabled

Information

Block that outputs the total number of stages to be enabled.

The block compares the input u with the threshold of each stage. If the input is greater than a stage threshold, the output is set to that stage. The block outputs the total number of stages to be enabled.

The parameter n specifies the maximum number of stages. The stage thresholds are evenly distributed, i.e. the thresholds for stages [1, 2, 3, ... , n] are [0, 1/n, 2/n, ... , (n-1)/n], plus a hysteresis which is by default h=0.02/n. Once the output changes, it cannot change for at least holdDuration seconds.

Parameters

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Subtract

Output the difference of the two inputs

Information

Block that outputs y as the difference of the two input signals u1 and u2,

    y = u1 - u2

Connectors

Modelica definition

Buildings.Controls.OBC.CDL.Integers.Switch

Switch between two integer signals

Information

Block that outputs one of two integer input signals based on a boolean input signal.

If the input signal u2 is true, the block outputs y = u1. Otherwise, it outputs y = u3.

Connectors

Modelica definition