modbus tcp通讯

配置pom.xml

<dependency>
	<groupId>com.infiniteautomation</groupId>
	<artifactId>modbus4j</artifactId>
	<version>3.0.3</version>		
</dependency>


<repositories>
    <repository>
        <releases>
            <enabled>false</enabled>
        </releases>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
        <id>ias-snapshots</id>
        <name>Infinite Automation Snapshot Repository</name>
        <url>https://maven.mangoautomation.net/repository/ias-snapshot/</url>
    </repository>
    <repository>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
        <id>ias-releases</id>
        <name>Infinite Automation Release Repository</name>
        <url>https://maven.mangoautomation.net/repository/ias-release/</url>
    </repository>
</repositories>

import com.serotonin.modbus4j.BatchRead;
import com.serotonin.modbus4j.BatchResults;
import com.serotonin.modbus4j.ModbusFactory;
import com.serotonin.modbus4j.ModbusMaster;
import com.serotonin.modbus4j.code.DataType;
import com.serotonin.modbus4j.exception.ErrorResponseException;
import com.serotonin.modbus4j.exception.ModbusInitException;
import com.serotonin.modbus4j.exception.ModbusTransportException;
import com.serotonin.modbus4j.ip.IpParameters;
import com.serotonin.modbus4j.locator.BaseLocator;

/**
 * modbus通讯工具类,采用modbus4j实现
 * 
 * @author lxq
 * @dependencies modbus4j-3.0.3.jar
 * @website https://github.com/infiniteautomation/modbus4j
 */
public class Modbus4jUtils {
	/**
	 * 工厂。
	 */
	static ModbusFactory modbusFactory;
	static {
		if (modbusFactory == null) {
			modbusFactory = new ModbusFactory();
		}
	}

	/**
	 * 获取master
	 * 
	 * @return
	 * @throws ModbusInitException
	 */
	public static ModbusMaster getMaster() throws ModbusInitException {
		IpParameters params = new IpParameters();
		params.setHost("192.168.2.80");
		params.setPort(502);
		//
		// modbusFactory.createRtuMaster(wapper); //RTU 协议
		// modbusFactory.createUdpMaster(params);//UDP 协议
		// modbusFactory.createAsciiMaster(wrapper);//ASCII 协议
		ModbusMaster master = modbusFactory.createTcpMaster(params, true);// TCP 协议
		master.setRetries(5);
		master.init();

		return master;
	}

	/**
	 * 读取[01 Coil Status 0x]类型 开关数据
	 * 
	 * @param slaveId
	 *            slaveId
	 * @param offset
	 *            位置
	 * @return 读取值
	 * @throws ModbusTransportException
	 *             异常
	 * @throws ErrorResponseException
	 *             异常
	 * @throws ModbusInitException
	 *             异常
	 */
	public static Boolean readCoilStatus(int slaveId, int offset)
			throws ModbusTransportException, ErrorResponseException, ModbusInitException {
		// 01 Coil Status
		BaseLocator<Boolean> loc = BaseLocator.coilStatus(slaveId, offset);
		Boolean value = getMaster().getValue(loc);
		return value;
	}

	/**
	 * 读取[02 Input Status 1x]类型 开关数据
	 * 
	 * @param slaveId
	 * @param offset
	 * @return
	 * @throws ModbusTransportException
	 * @throws ErrorResponseException
	 * @throws ModbusInitException
	 */
	public static Boolean readInputStatus(int slaveId, int offset)
			throws ModbusTransportException, ErrorResponseException, ModbusInitException {
		// 02 Input Status
		BaseLocator<Boolean> loc = BaseLocator.inputStatus(slaveId, offset);
		Boolean value = getMaster().getValue(loc);
		return value;
	}

	/**
	 * 读取[03 Holding Register类型 2x]模拟量数据
	 * 
	 * @param slaveId
	 *            slave Id
	 * @param offset
	 *            位置
	 * @param dataType
	 *            数据类型,来自com.serotonin.modbus4j.code.DataType
	 * @return
	 * @throws ModbusTransportException
	 *             异常
	 * @throws ErrorResponseException
	 *             异常
	 * @throws ModbusInitException
	 *             异常
	 */
	public static Number readHoldingRegister(int slaveId, int offset, int dataType)
			throws ModbusTransportException, ErrorResponseException, ModbusInitException {
		// 03 Holding Register类型数据读取
		BaseLocator<Number> loc = BaseLocator.holdingRegister(slaveId, offset, dataType);
		Number value = getMaster().getValue(loc);
		return value;
	}

	/**
	 * 读取[04 Input Registers 3x]类型 模拟量数据
	 * 
	 * @param slaveId
	 *            slaveId
	 * @param offset
	 *            位置
	 * @param dataType
	 *            数据类型,来自com.serotonin.modbus4j.code.DataType
	 * @return 返回结果
	 * @throws ModbusTransportException
	 *             异常
	 * @throws ErrorResponseException
	 *             异常
	 * @throws ModbusInitException
	 *             异常
	 */
	public static Number readInputRegisters(int slaveId, int offset, int dataType)
			throws ModbusTransportException, ErrorResponseException, ModbusInitException {
		// 04 Input Registers类型数据读取
		BaseLocator<Number> loc = BaseLocator.inputRegister(slaveId, offset, dataType);
		Number value = getMaster().getValue(loc);
		return value;
	}

	/**
	 * 批量读取使用方法
	 * 
	 * @throws ModbusTransportException
	 * @throws ErrorResponseException
	 * @throws ModbusInitException
	 */
	public static void batchRead() throws ModbusTransportException, ErrorResponseException, ModbusInitException {

		BatchRead<Integer> batch = new BatchRead<Integer>();
		
		batch.addLocator(0, BaseLocator.holdingRegister(1, 1, DataType.FOUR_BYTE_FLOAT));
		batch.addLocator(1, BaseLocator.inputStatus(1, 0));

		ModbusMaster master = getMaster();

		batch.setContiguousRequests(false);
		BatchResults<Integer> results = master.send(batch);
		System.out.println(results.getValue(0));
		System.out.println(results.getValue(1));
	}

	/**
	 * 测试
	 * 
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			
			/*// 01测试
			Boolean v011 = readCoilStatus(1, 0);
			Boolean v012 = readCoilStatus(1, 1);
			Boolean v013 = readCoilStatus(1, 6);
			System.out.println("v011:" + v011);
			System.out.println("v012:" + v012);
			System.out.println("v013:" + v013);
			// 02测试
			Boolean v021 = readInputStatus(1, 0);
			Boolean v022 = readInputStatus(1, 1);
			Boolean v023 = readInputStatus(1, 2);
			System.out.println("v021:" + v021);
			System.out.println("v022:" + v022);
			System.out.println("v023:" + v023);
*/
		/*	// 03测试
			Number v031 = readHoldingRegister(1, 1, DataType.FOUR_BYTE_FLOAT);// 注意,float
			Number v032 = readHoldingRegister(1, 3, DataType.FOUR_BYTE_FLOAT);// 同上
			System.out.println("v031:" + v031);
			System.out.println("v032:" + v032);

			// 04测试
			Number v041 = readInputRegisters(1, 1, DataType.FOUR_BYTE_FLOAT);//
			Number v042 = readInputRegisters(1, 3, DataType.FOUR_BYTE_FLOAT);//
			System.out.println("v041:" + v041);
			System.out.println("v042:" + v042);
			// 批量读取
			batchRead();
*/
			
			 
			while (true) {
				try {
					for (int i = 2; i < 18; i++) {
						Number number = readHoldingRegister(1, i, 2);
					 
						System.err.print(number.intValue() / 10);
					}
				} catch (Exception e) {
					// TODO: handle exception
				}
				Thread.currentThread().sleep(2000);

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