PLC Code for Alarm Condition

That sounds like a good start. Post your first program attempt when you have done it.

Here is what I got thus far, but I can tell its not going to work.

I'm not sure of your application, but you may want to consider what happens if a operator cheats out the photoeye.

Your timer is timing for as long as the reject kicker is activated. I'll take it that the photoeye should go ON sometime during the reject process, while the kicker is still on - let's say as the product is falling into a reject bin.

I would have the kicker output turn on (OTL) a bit, something like 'reject testing'. Let 'reject testing' enable the timer.

If, while the timer is 'timing' (.TT) the photoeye turns ON then simply turn off (OTU) the 'reject testing' bit.

If the timer reaches 'done' then the photoeye was not seen and you can set your alarm.

Edit - does the making of the photoeye (in logic not shown) send the kicker back to its home point? If so then the kicker being ON for the time in the timer is sufficient to set the alarm.

Okay, I think I got it. Does this look like it will work?

And no, the reject kicker is just held on for a certain time and shuts off. The photoeye does not send the kicker back to its home point.

Edit - Rung1 should be O:0/3 for reject kicker instead of O:0/5.

In rung 1 change XIC O:0/5 to XIC B3:1/6

Edit (after your recent post) the contact should be B3:1/6 as I noted.

Got it. Much Thanks!