which you are programming. :

much programming [...] only in programs and function

-POU (Safety), programming

Operator: OR If the IEC OR operator is used for programming

only in the Extended programming [...] programming level. Display

programs (PROGRAM type

Operator: AND If the IEC AND operator is used for programming

with programming level Extended

with programming level Extended

in the programming system. Table 6 [...] level programs [...] programming