MLCompWriteRef

 Function - Sets the reference position of a comparator block.

• 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.
• If the input ThroughZero is set to TRUE, system must cross zero and then the reference position before the Transition Flag is set.
• If ThroughZero is FALSE, Transition Flag is set immediately if the input pipe position is greater then or equal to the Reference value.

Figure 1: MLCompWriteRef

Inputs

Input	Data Type See Data Types.	Range	Unit	Default	Description
BlockID	DINT	1 to 1024	N/A	No default	ID number of an initiated Comparator object.
ThroughZero	BOOL	FALSE, TRUE	N/A	No default	When TRUE, the system must cross zero and then the reference position 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	New reference position to set in the selected Comparator object.

Outputs

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

FBD Language Example

FFLD Language Example

IL Language Example

Not available.

ST Language Example

//Set the Comparator Reference value 
MLCompWriteRef( PipeNetwork.MyComp , TRUE , 45 );

See Also

• MLCompCheck
• MLCompReadRef
• MLCompReset