Which data type is typically not converted by the fill instruction?

The fill instruction is primarily used to initialize an array or a block of memory to a specific value. When considering the data types in the context of the fill instruction, there are certain types that the instruction is optimized to handle effectively.

The BINT (Boolean Integer) data type is often not converted by the fill instruction because it represents a binary state rather than a numerical value that can be uniformly filled across a range. The fill instruction is designed for numerical types where a consistent value is applied to each element in an array or memory block. Since BINT is a discrete type that represents two possible states (binary), it does not fit within the numerical operations typical of a fill instruction.

In contrast, data types like REAL (floating-point), SINT (short integer), and DINT (double integer) can all be easily utilized with the fill instruction, as they can represent values that can be uniformly distributed across an array or block of memory. This makes BINT the outlier, as it does not lend itself to the same kind of value assignment that the fill instruction is intended to perform.