dl-breadcrumbs__homedl-breadcrumb-item__separatorConfiguration and programmingdl-breadcrumb-item__separatorProgramming with CODESYSdl-breadcrumb-item__separator...dl-breadcrumb-item__separatorCODESYS Development Systemdl-breadcrumb-item__separatorReference, Programmingdl-breadcrumb-item__separatorOperatorsdl-breadcrumb-item__separatorOperator 'LOG'
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Operator 'LOG'dl-permalink__symbolPermalink

This IEC operator yields the base-10 logarithm of a number.

The input variable can be any numeric basic data type, but the output variable must be the data type ‎REAL‎ or ‎LREAL‎.

Examples

Result in ‎q‎: ‎2.49762‎

ST:

q := LOG(314.5);

FBD:

_cds_img_log.png