SerialSlaveTest.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.ModbusSerialListener;
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;
import net.wimpi.modbus.util.SerialParameters;

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

    public static void main(String[] args) {

        ModbusSerialListener listener = null;
        SimpleProcessImage spi = new SimpleProcessImage();
        String portname = args[0];

        if (Modbus.debug) {
            System.out.println("jModbus ModbusSerial Slave");
        }

        try {

            // 1. Prepare a process image
            spi = new SimpleProcessImage();
            spi.addDigitalOut(new SimpleDigitalOut(true));
            spi.addDigitalOut(new SimpleDigitalOut(false));
            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));

            // 2. Create the coupler and set the slave identity
            ModbusCoupler.getReference().setProcessImage(spi);
            ModbusCoupler.getReference().setMaster(false);
            ModbusCoupler.getReference().setUnitID(2);

            // 3. Set up serial parameters
            SerialParameters params = new SerialParameters();
            params.setPortName(portname);
            params.setBaudRate(115200);
            params.setDatabits(8);
            params.setParity("None");
            params.setStopbits(1);
            params.setEncoding("ascii");
            params.setEcho(false);
            params.setReceiveTimeoutMillis(100);
            if (Modbus.debug) {
                System.out.println("Encoding [" + params.getEncoding() + "]");
            }

            // 4. Set up serial listener
            listener = new ModbusSerialListener(params);
            listener.setListening(true);

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

}// class SerialSlaveTest