The Greater Than function block evaluates input A to see if its current value is greater than input B.
If input A is greater than input B: power will flow through the function block.
If input A is not greater than input B: power will not flow through the function block.
According to the above example:
If MI 1 value is greater than 35; then MB 50 will go to logic "1" (ON).
If MI 1 not greater than 35; MB 50 will go to logic "0".
Care must be taken when using greater and less than function blocks. Do not create a program with instructions for Greater Than and Less Than but without an instruction block for how to proceed in a situation where input A equals input B.