私.Modbus测试_ZC02_串口方式

package com.ModBusZ;

import java.util.Arrays;

import com.serotonin.io.serial.SerialParameters;
import com.serotonin.modbus4j.ModbusFactory;
import com.serotonin.modbus4j.ModbusMaster;
import com.serotonin.modbus4j.exception.ModbusInitException;
import com.serotonin.modbus4j.exception.ModbusTransportException;
import com.serotonin.modbus4j.msg.ReadDiscreteInputsRequest;
import com.serotonin.modbus4j.msg.ReadDiscreteInputsResponse;
import com.serotonin.modbus4j.msg.ReadHoldingRegistersRequest;
import com.serotonin.modbus4j.msg.ReadHoldingRegistersResponse;
import com.serotonin.modbus4j.msg.WriteRegistersRequest;
import com.serotonin.modbus4j.msg.WriteRegistersResponse;

public class TestModbusDemo
{
    //设定MODBUS网络上从站地址
    private final static int SLAVE_ADDRESS = 1;
    // 串行波特率
    private final static int BAUD_RATE = 9600;

    public static void main(String[] args)
    {
        SerialParameters serialParameters = new SerialParameters();
        // 设定MODBUS通讯的串行口
        serialParameters.setCommPortId("COM3");
        // 设定成无奇偶校验
        serialParameters.setParity(0);
        // 设定成数据位是8位
        serialParameters.setDataBits(8);
        // 设定为1个停止位
        serialParameters.setStopBits(1);
        // 设定端口名称
        serialParameters.setPortOwnerName("Numb nuts");
        // 设定端口波特率
        serialParameters.setBaudRate(BAUD_RATE);
    
        // 创建ModbusFactory工厂实例
        ModbusFactory modbusFactory = new ModbusFactory();
        // 创建ModbusMaster实例
        ModbusMaster master = modbusFactory.createRtuMaster(serialParameters);
        
        // 初始化
        try
        {
            master.init();
            readHoldingRegistersTest(master,SLAVE_ADDRESS,0,100);
        } catch (ModbusInitException e) {
            e.printStackTrace();
        } finally {
            master.destroy();
        }
    }// mian(...)

    /**
    * 读开关量型的输入信号
    * @param master 主站
    * @param slaveId 从站地址
    * @param start 起始偏移量
    * @param len 待读的开关量的个数
    */
    private static void readDiscreteInputTest(ModbusMaster master, int slaveId, int start, int len)
    {
        try
        {
            ReadDiscreteInputsRequest request = new ReadDiscreteInputsRequest(slaveId, start, len);
            ReadDiscreteInputsResponse response = (ReadDiscreteInputsResponse) master.send(request);
            if (response.isException())
            System.out.println("Exception response: message=" + response.getExceptionMessage());
            else
            System.out.println(Arrays.toString(response.getBooleanData()));
        }
        catch (ModbusTransportException e) {
            e.printStackTrace();
        }
    }

    /**
    * 读保持寄存器上的内容
    * @param master 主站
    * @param slaveId 从站地址
    * @param start 起始地址的偏移量
    * @param len 待读寄存器的个数
    */
    private static void readHoldingRegistersTest(ModbusMaster master,
            int slaveId, int start, int len)
    {
        try
        {
            ReadHoldingRegistersRequest request = 
                    new ReadHoldingRegistersRequest(slaveId, start, len);
            ReadHoldingRegistersResponse response =
                    (ReadHoldingRegistersResponse) master.send(request);
            if (response.isException())
                System.out.println("Exception response: message="
                        + response.getExceptionMessage());
            else
            {
                System.out.println(Arrays.toString(response.getShortData()));
                short[] list = response.getShortData();
                for(int i = 0; i < list.length; i++)
                    System.out.print(list[i] + " ");
            }
        } catch (ModbusTransportException e) {
            e.printStackTrace();
        }
    }

    /**
    * 批量写数据到保持寄存器
    * @param master 主站
    * @param slaveId 从站地址
    * @param start 起始地址的偏移量
    * @param values 待写数据
    */
    public static void writeRegistersTest(ModbusMaster master, int slaveId, int start, short[] values)
    {
        try
        {
            WriteRegistersRequest request = new WriteRegistersRequest(slaveId, start, values);
            WriteRegistersResponse response = (WriteRegistersResponse) master.send(request);
            if (response.isException())
                System.out.println("Exception response: message="
                        + response.getExceptionMessage());
            else
                System.out.println("Success");
        }
        catch (ModbusTransportException e) {
            e.printStackTrace();
        }
    }
}