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1 Reply Latest reply: Nov 24, 2008 7:27 AM by 807557 RSS

Java interface with PLC (programmable logic controller)

807557 Newbie
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hi everyone,
I'm a totally new to java as well as PLC. Pls help me if anyone has any idea to help me.

I would like to create a road traffic simulator by using java which the simulator can communicate with PLC.
I will create a crossroad. Each junction will have three colour lights (green, yellow, red).
The PLC is to control the traffic lights in the simulator while the simulator will output the length of vehicle in each junction.

How should i do?
What should i do?

I'm urgently looking forward for your answers. thank you!
  • 1. Re: Java interface with PLC (programmable logic controller)
    807557 Newbie
    Currently Being Moderated
    I'm assuming you are interested in using Java RTS (Sun's implementation of JSR-01) since you posted to this forum.

    Java RTS has more than enough predictability to simulate (and in fact replace in production) any PLC.

    My suggestion is that you use Java RTS for the complete simulation. It's much simpler since the complete logic can be executed in a single JVM no PLC would be required.

    If you need proof that Java RTS is so capable check out these videos.


    http://www.youtube.com/watch?v=xH1yUXd9krU (JavaOne 2007)

    http://www.youtube.com/watch?v=g5Ky2ApC4Y4 (JavaOne 2008)

    You can download Java RTS here

    http://java.sun.com/javase/technologies/realtime/rts/

    Note that for academic work there is no fee to use JavaRTS.

    Please stay in touch and let us know more about your porject. Traffic signaling and control is an area in which I am interested and for which, we believe, Java RTS offers significant advantages.

    Cheers, Greg