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CheckValueIsANumber

Short summary​

This function checks if the given LREAL is a valid number to calculate with.

Return: TRUE if the value is processable, FALSE if NaN or +/-Inf

  • Return type: BOOL

Parameters​

NameTypeCommentKind
valueLREALthe folating point that should be checkedinput

Code​

Declaration​

FUNCTION INTERNAL CheckValueIsANumber : BOOL
VAR_INPUT 
	(* the folating point that should be checked *)
	value :LREAL;
END_VAR

Implementation​

CheckValueIsANumber := (NOT Tc2_Utilities.LrealIsNaN(value)) AND_THEN Tc2_Utilities.LrealIsFinite(value);