All IEC operators are supported. In contrast with the standard functions (see Appendix D of the Standard library⮫ «Standard library»), these operators are recognized implicitly throughout the project.

Besides the IEC operators also the following operators are supported which are not prescribed by the standard: INDEXOF and SIZEOF ⮫ «Arithmetic operators», ADR and BITADR ⮫ «Address operators».

Operators are used like functions in POU.