How to control conveyor with two photoeyes?

Question

question

Brad Champeau asked Apr 24, '17 Sam Stubbs answered Apr 26, '17

How to control conveyor with two photoeyes?

I have a conveyor that I want to run with the following logic:

If photoeye 1 and photoeye 2 are clear for more than 3 seconds, turn the conveyor on.

Software Version:

FlexSim 17.1.0

conveyor control

· 3

Jeff Nordgren commented · Apr 24, 2017 at 05:29 PM

@Brad Champeau

Do you have a sample model you could send in? It would be easier to see exactly what you are trying to accomplish.

0 ·

Brad Champeau commented · Apr 24, 2017 at 05:38 PM

phsmustang.fsmIn the attached model, the two photoeyes PE 1600 and PE 1515 would need to control motor 9.

0 ·

phsmustang.fsm (58.9 KiB)

Brad Champeau commented · Apr 25, 2017 at 08:30 PM

@Jeff Nordgren Any headway on an answer to this one? Thanks.

0 ·

Answer 1 · 2017-04-26T16:30:05Z

Sam Stubbs answered Apr 26, '17

As we discussed on the phone here is an example that can model what I think you were looking for. Essentially you have to set up logic so that the downstream and upstream photo eyes "talk" to each other letting the other one know when the first one is blocked. You can do this will a little bit of custom code and sending messages to each other.

Here is an example which should help you:

peblockedexample.fsm

peblockedexample.fsm (23.9 KiB)

question