Conveyor Simulator

[Sparks]

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Hi all
Sorry I posted in the general forum and realised this was the more relevent one.

Im new to PLC,s so I registered and down loaded the tri-logic software to help familirise myself with the ladder programming.

I have created a simple conveyor programme with a couple of inputs to index the movement.
I am pretty happy that the curcuit works, but i want to put a timed input pulse ( every 4 seconds) on to one of the inputs to simulate the conveyor running and picking up a proximity input so i can check everything else works.

Any advice on how to do this?

Many thanks

[support]

You can make a 4 second pulse using a self-reseting timer with preset value = 40.

      4sDly      4sDly
|---|/|------(TIM)

Make sure that the above circuit is placed at the lower rung of the ladder program, then the contact 4sDly can be used to simulate a pulse input to other circuits located before the above circuit.