I had a customer with some pallet data tracking issues that I was debugging remotely. I added a rung that put the key data in one place to make it easier to watch. Though, it was still difficult to monitor. Then I thought, wait a minute, why not use AdvancedHMI to visualize this, so I took 5 minutes to plunk some 7 segment displays on a form, saw the issue within the first couple of minutes of watching the screen.
It was a conveyor trunk line from left to right, which product enters from left and from the bottom on those 7segs that have 1,2 and 3. They are unloaded on the right. It wasn't meant to be pretty. It saved me quite a bit of time, I figured out where it was going wrong when the first pallet went through the system.