MLDerInit

 Function A function calculates a result according to the current value of its inputs. A function has no internal data and is not linked to declared instances. - Initializes an derivator object.

Inputs

Input	Data Type	Range	Unit	Default	Description
BlockID	DINT	-2147483648 to 2147483647	N/A	No default	ID number of a created Pipe Block.
ModuloPosition	LREAL	No range	User units	360.0	Input ModuloPosition of Derivator object.

Outputs

Input	Data Type	Range	Unit	Description
Default (.Q)	BOOL			Returns TRUE if the Derivator object is initialized. See Pipe Network - General Rules for more information.

Remarks

• Function block is automatically called if a Derivator Block is added to the Pipe Network, with user-defined settings entered in the Pipe Blocks Properties screen.
• Input ModuloPosition is defined to manage the periodicity (modulo) of the input values.

• 
  

• Derivator objects are normally created in the Pipe Network using the graphical engine.
  You do not have to add MLDerInit function blocks to their programs.
  Parameters are entered directly in pop-up windows and the code is automatically added to the current project.

Figure 6-180: MLDerInit

FBD Language Example

FFLD Language Example

IL Language Example

Not available.

ST Language Example

//Create and Initiate a Derivator object 
MyDerivator := MLBlkCreate( 'MyDerivator', 'DERIVATOR' );
MLDerInit( MyDerivator, 360.0 );

See Also

• MLBlkCreate
• MLDerReadInModPos
• MLDerReadInModPos