SIS function blocks > SIS Logical Blocks

Logic Solver Boolean Fan Output function block

The LSBFO function block decodes a binary weighted input to individual bits and generates a discrete output value for each bit. The block supports signal status propagation. There are no modes or alarm detection in the Boolean Fan Output function block.

Figure: LSBFO Function Block

IN_INT is the unsigned 32-bit binary weighted input value and status.

OUT_D1 through OUT_Dn are the discrete output values and statuses (as many as 16 outputs) that represent the bit of the input.

The following figure shows the internal components of the function block:

Figure: LSBFO Function Block Schematic Diagram