I use them to send a message every x seconds or for any timed cycle that constantly repeats. One example being an air dryer where it just repeats the same cycle over and over again.
Why didn't you include HWConfig?
I would've added HWConfig.
You should add HWConfig.
Why should you add HWConfig?
Cuz some ******* ********* ********* **** ********* ****** ***hole did a HWConfig download yesterday and didn't take a back-up.
Download bricked the PLC.
PLC does ... did ... handle an important part of our process.
Most recent back-up had ALL the wrong settings. Sanitary states, tank states, tank designations, recipe data, etc etc etc. All wrong. All wrong.