its hard to find 'examples' because most of the time PLCs are controlling a custom machine.
we make sawmill equipment, and while there are similarities, each machine is custom designed and therefore the program is custom.
for the micrologix 1500, the manual has some examples. also keep in mind that the 1500 uses the same programming as the SLC series.
i am in the same position you are in, just learning...
I designed and installed a saw that used the micrologix 1500, AC input, Relay Output, Analog output, and analog input (high speed counter)
the programming isnt too hard, just different than what i was used to. if you have any beginner questions about hte 1500, just shoot me a Private message if you think its too silly to post about.
good luck!