TON Best Practice

What is the 'best/simplest' way to write code in an Allen Bradley PLC for keeping an output on for a set time?

I use the GRT block on the .acc bit to reset. When I tried having the .DN bit reset the timer it always loops and loops and loops which doesn't make sense to me.

try using the TT (Timer Timing) bit to keep the output on ...

in MOST cases you don't need an RES (Reset) instruction for a TON timer ... just make the rung condition FALSE - and the TON will "reset" itself ...