MLCompInit

 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 a comparator Pipe Block with user-defined settings for use in a PLC Programmable Logic Controller - A digital computer used for automation of industrial processes, such as control of machinery on factory assembly lines. Used to synchronize the flow of inputs from (physical) sensors and events with the flow of outputs to actuators and events. Program The act of performing a sequence of instructions or commands..

Inputs

Input	Data Type	Range	Unit	Default	Description
BlockID	DINT	-2147483648 to 2147483647	N/A	No default	ID number of a created Comparator Pipe Block.
ModuloPosition	LREAL	No range	User units	No default	Value of the period Motor systems having a reciprocating or oscillating motor that operates synchronously with the periodicity of the source which supplies the electrical energy. The period of execution of a pipe is the time spent between two successive computations of set values for the same pipe. The period of execution of a pipe is specified by the PERIOD parameter of the input pipe block. of a cyclic system.
ThroughZero	BOOL	0, 1	N/A	No default	When TRUE, the system must cross zero and then the reference position Position means a point in space which is described by different coordinates. Depending on the used system and transformation it can consist of a maximum of six dimensions (coordinates).This means three Cartesian coordinates in space and coordinates for the orientation. In ACS there can be even more than six coordinates. If the same position is described in different coordinate systems the values of the coordinates are different. before the Transition Flag is set. When FALSE, the Transition Flag is set immediately if the input pipe position is greater then or equal to the Reference value.
Reference	LREAL	No range	User units	No default	Set the reference position in the new Comparator object.

Outputs

Output	Data Type	Range	Unit	Description
Default (.Q)	BOOL			Returns TRUE when function starts to execute. See Pipe Network - General Rules.

Remarks

• Function block A function block groups an algorithm and a set of private data. It has inputs and outputs. is automatically called if a Comparator Block is added to the Pipe Network.
  • User-defined settings are entered in the Pipe Blocks Properties screen.
• The Transition Flag of a comparator object turns TRUE if the input position to the comparator is greater or equal to the reference.
• The Comparator Transition Flag stays TRUE until it is reset New start of the microprocessor..
• If the input ThroughZero is set to TRUE, the system must cross zero and then the reference position before the Transition Flag is set.
• If ThroughZero is FALSE, the Transition Flag is set immediately if the input pipe position is greater or equal to the Reference value.

• 
  

• Comparator objects are normally created in the Pipe Network using the graphical engine.
  You do not have to add MLCompInit function blocks to their programs.
  Parameters are entered directly The orientation components of a vector in space. in windows, and the code is then automatically added to the current project.

FBD Language Example

FFLD Language Example

IL Language Example

Not available.

ST Language Example

      //Initiate a created Comparator Block named “MyComp” to:
//   Modulo of 360
//   Require the input position to first cross 0 before the
//      MLCompCheck output is triggered
//   Input compared position to 45
      
MyComp := MLBlkCreate( 'MyComp', 'COMPARATOR' );
MLCompInit( MyComp, 360.0, TRUE, 45.0 );

See Also

• MLBlkCreate
• MLCompCheck
• MLCompReset
• MLCompWriteRef