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==Inputs==
The input attributes define the input pins of the function object, i.e. values that are fetched from output pins of other function objects. The inputs are defined by $Input objects and are placed below the RtBody object.<br \>
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The datatype of the input, TypeRef, needs to be defined. Valid datatypes for an input are:
* pwrs:Type-Float32
* pwrs:Type-Int32 
* pwrs:Type-String80
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The GraphName parameter defines the pin text in the PLC program editor for the function object. Normally, 2 - 4 characters are used. Typically, upper-case letters are used for analog signals, lower-case for digital, and first character upper-case for other signal types.<br \>
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An input attribute in an instance object, contains both a pointer to the output it is connected to, and a value that can be stated. You choose whether to use the input pin and connect an output, or to set a value, with a checkbox (Used). If you choose not to mark Used,
the input pin is not displayed in the function object. In the Template object, you can set default values for the input, that will be used when the input is not connected.<br \>
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