The IEC operator is used for the bitwise ‎NOT‎ of a bit operand.

When the respective input bit yields 0, the output bit also yields 1, and the other way around.

Permitted data types: ‎BOOL‎, ‎BYTE‎, ‎WORD‎, ‎DWORD‎, ‎LWORD‎

Examples

Result in ‎Var1‎: ‎2#0110_1100‎

ST

Var1 := NOT 2#1001_0011;

FBD