cause : A constant

constant is assigned

_GLOBAL and VAR_GLOBAL CONSTANT

as IEC time constants [...] as IEC time constants

or a constant. Call

or a constant. Call

CONSTANT , RETAIN , or

constantly recurring task [...] _INPUT CONSTANT udiSize : UDINT [...] _INPUT CONSTANT udiBufferSize :

CONSTANTS [...] parameter CONSTANTS [...] CONSTANTS

Boolean constant, or a [...] , Boolean constant