The Less Than function block evaluates input A to see if its integer value is less than input B.
If input A is less than input B: power will flow through the function block.
If input A is not less than input B: power will not flow through the function block.
According to the above example:
If MI 1 value is less than constant integer 35; then MB 60 will go to logic "1" (ON).
If MI 1 value is not less than constant integer 35; MB 60 will go to logic "0" (OFF).