This document describes the properties of a function block called SimLogic used in a PLC program for a hydro plant project. It contains input, output, and in-out variables for the function block as well as 4 networks that describe the logic within the function block using functions like timers, math operations, comparisons, and moves. The function block controls aspects of the hydro plant like brakes, baffles, oil temperature, pump speed, and current levels.