.. _element/type/element_simple

==================
Simple element
==================

The simple element is used to represent devices such actuators (electric motors, cylinders, 
pneumatic or hydraulic valves, etc.), control devices (PLC, microcontrollers, etc.), circuit 
breakers, etc.

.. figure:: ../../images/qet_element_simple_element.png
   :align: center

   Figure: QElectroTech simple element

For simple element exist two type of variables:

    1. General variables common for all type of elements and managed internally by QElectroTech.
    2. Specific variables from simple elements.

General variables 

    * **% {F}**: Label from the folio where the element can be found
    * **% {f}**: Number from the folio where the element can be found
    * **% {M}**: Plant variable from the folio where the element can be found
    * **% {LM}**: Location variable of the folio where the element can be found
    * **% {l}**: Folio line number from the workspace where the element can be found
    * **% {c}**: Folio column number from the workspace where the element can be found
    * **% {id}**: Folio position in the project (Schema number)

Specific variables

    * **Label formula**: Definition of the formula which defines the **Label** value. If a auto numbering pattern is selected during terminal creation, QElectroTech defiens ``%autnum`` as default formula.
    * **Label**: Internal variable which is used to defines the element code.
    * **Annotation**: Internal variable, it cannot be a formula (group of other variables).
    * **Textual description**: Internal variable, it cannot be a formula (group of other variables).
    * **Article number**: Internal variable, it cannot be a formula (group of other variables).
    * **Manufacturer**: Internal variable, it cannot be a formula (group of other variables).
    * **Order number**: Internal variable, it cannot be a formula (group of other variables).
    * **Supplier**: Internal variable, it cannot be a formula (group of other variables).
    * **Auxiliry block 1**: Internal variable, it cannot be a formula (group of other variables).
    * **Auxiliry block 2**: Internal variable, it cannot be a formula (group of other variables).
    * **Internal number**: Internal variable, it cannot be a formula (group of other variables).
    * **Location**: Internal variable, it cannot be a formula (group of other variables).
    * **Function**: Internal variable, it cannot be a formula (group of other variables).
    * **Voltage/Protocol**: Internal variable, it cannot be a formula (group of other variables).