Initial Value is the value to start the loop with a DINT value

Final Value is the end of the loop with a DINT value

Increment is the amount to increment the loop.  1 value is just like a counter.  2 value counts by 2.  3 value counts by 3 and so on....

Frequency mSeconds is how fast you want the loop to run in milliseconds

Initialize_Loop is a tag you create when you want to initialize or start the loop

The purpose I had used the For_Do_Loop or a tag you create is to move the count value into an array of files to search and execute.  Current tag used is "s" in example.