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This component allows you to perform Boolean operations (AND / OR / XOR / NOT). This is done when the status of one of the inputs change. There is the possibility to define, for each input, whether to consider changing the ON / OFF or OFF / ON. You can define up to 4 outputs, each of which will acquire the value resulting from the operation.


  • The user can use this component to calculate parameters coming from the load control and perform a result out of it.



This component’s sample is made by using Graphic UI gateway.

Please refer to “Gateways / Protocols” guide in order to get further info.

INPUTS: components to take into account as inputs of the logic.

Input: Drop Down, Color Info, Text info, Switch, Lock, Pulse component;

Evaluate when:

Input “n” changes from Off to On: operation is carried out only when the input goes to On;
Input “n” changes from On to Off: operation is carried out only when the input goes to Off;
At any change of the Input “n”: operation is carried out anytime input goes to On and Off;

Invert value: a checkbox that allows inverting the input values into 0=On, 1=Off;

More inputs:

The component’s parameters area allows you to take into account up to 4 different inputs. However, you can add countless inputs to the operation. To do this just drag & drop the required inputs into the dialogue box which appears after clicking “More inputs” button.

OPERATIONS: they define the circumstance under which the logic is executed.


AND: only when all the inputs behave as defined, the operation is carried out;
OR: only when one or another input behaves as defined the operation is carried out.

OUTPUTS: components to take into account as outputs of the logic.

Output: Drop Down, Color Info, Text info, Switch, Lock, Pulse component;

Invert value: checkbox that allows inverting the output values into 0=On, 1=Off.

Active inputs counter: Info component that shows the number of inputs at On;

Note: text field available for additional information on the component from the admin side.

Logic configuration can be easily carried out by using component’s drag&drop function. When setting components on Component’s parameters, you can use the drop-down menu, or you can drag and drop them from “My components” area to the component selection field.

Reminder before continuing:

  • Download and Install EVE Logic plugin to enable plugins (link);
  • After loading .eve project to the server, run EVE Remote app, log in and then wait a couple of minutes for logics activation.

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