UDPSlaveTest.java

/***
 * Copyright 2002-2010 jamod development team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ***/

package net.wimpi.modbus.cmd;

import net.wimpi.modbus.Modbus;
import net.wimpi.modbus.ModbusCoupler;
import net.wimpi.modbus.net.ModbusUDPListener;
import net.wimpi.modbus.procimg.SimpleDigitalIn;
import net.wimpi.modbus.procimg.SimpleDigitalOut;
import net.wimpi.modbus.procimg.SimpleInputRegister;
import net.wimpi.modbus.procimg.SimpleProcessImage;
import net.wimpi.modbus.procimg.SimpleRegister;

/**
 * Class implementing a simple Modbus/UDP slave.
 * A simple process image is available to test
 * functionality and behaviour of the implementation.
 *
 * @author Dieter Wimberger
 * @version @version@ (@date@)
 */
public class UDPSlaveTest {

    public static void main(String[] args) {

        ModbusUDPListener listener = null;
        SimpleProcessImage spi = null;
        int port = Modbus.DEFAULT_PORT;

        try {

            if (args != null && args.length == 1) {
                port = Integer.parseInt(args[0]);
            }

            System.out.println("jModbus Modbus/UDP Slave v0.1");

            // 1. Prepare a process image
            spi = new SimpleProcessImage();
            spi.addDigitalOut(new SimpleDigitalOut(true));
            spi.addDigitalIn(new SimpleDigitalIn(false));
            spi.addDigitalIn(new SimpleDigitalIn(true));
            spi.addDigitalIn(new SimpleDigitalIn(false));
            spi.addDigitalIn(new SimpleDigitalIn(true));
            spi.addRegister(new SimpleRegister(251));
            spi.addInputRegister(new SimpleInputRegister(45));
            ModbusCoupler.getReference().setProcessImage(spi);
            ModbusCoupler.getReference().setMaster(false);
            ModbusCoupler.getReference().setUnitID(15);

            // 2. Setup and start listener
            listener = new ModbusUDPListener();
            listener.setPort(port);
            listener.start();

        } catch (Exception ex) {
            ex.printStackTrace();
        }

    }// main

}// class UDPSlaveTest