java与modbusRtu(COM口)通讯

modbous协议通讯byte数据解析含义

依赖的modbus包请看java与modbusTcp通讯

JDK中配置串口通讯能力提取码：hmfn

串口模拟工具提取码： npqx

依赖串口协议包：
<dependency><groupId>org.rxtx</groupId><artifactId>rxtx</artifactId><version>2.1.7</version>
</dependency>

实现代码 1 抽象类

import com.serotonin.modbus4j.serial.SerialPortWrapper;
import gnu.io.SerialPort;import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;public abstract class AbstractSerialPortWrapper implements SerialPortWrapper {private SerialPort serialPort = null;private Integer baudRate;private String port;protected AbstractSerialPortWrapper(String port,Integer baudRate){this.port = port;this.baudRate = baudRate;}@Overridepublic void close() throws Exception {if(serialPort != null){serialPort.close();}}@Overridepublic void open() throws Exception {serialPort = serialPort(port);}@Overridepublic InputStream getInputStream() {try {if(serialPort != null){return serialPort.getInputStream();}} catch (IOException e) {throw new RuntimeException("对象空指针异常");}throw new RuntimeException("对象空指针异常");}@Overridepublic OutputStream getOutputStream() {try {if(serialPort != null){return serialPort.getOutputStream();}} catch (IOException e) {throw new RuntimeException("对象空指针异常");}throw new RuntimeException("对象空指针异常");}@Overridepublic int getBaudRate() {return baudRate;}@Overridepublic int getFlowControlIn() {return SerialPort.FLOWCONTROL_NONE;}@Overridepublic int getFlowControlOut() {return SerialPort.FLOWCONTROL_NONE;}@Overridepublic int getDataBits() {return SerialPort.DATABITS_8;}@Overridepublic int getStopBits() {return SerialPort.STOPBITS_1;}@Overridepublic int getParity() {return SerialPort.PARITY_EVEN;}public abstract SerialPort serialPort(String portName);
}

实现代码 2 支持类

import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;public class SerialPortSupport extends AbstractSerialPortWrapper {public SerialPortSupport(String port,Integer baudRate){super(port,baudRate);}/*** 查找所有可用端口** @return 可用端口名称列表*/@SuppressWarnings("all")public static List<String> findPorts() {// 获得当前所有可用串口Enumeration<CommPortIdentifier> portList = CommPortIdentifier.getPortIdentifiers();List<String> portNameList = new ArrayList<String>();// 将可用串口名添加到List并返回该Listwhile (portList.hasMoreElements()) {String portName = portList.nextElement().getName();portNameList.add(portName);}return portNameList;}@Overridepublic SerialPort serialPort(String portName) {try {// 通过端口名识别端口CommPortIdentifier portIdentifier = CommPortIdentifier.getPortIdentifier(portName);// 打开端口，并给端口名字和一个timeout（打开操作的超时时间）CommPort commPort = portIdentifier.open(portName, 2000);// 判断是不是串口if (commPort instanceof SerialPort) {SerialPort serialPort = (SerialPort) commPort;try {// 设置一下串口的波特率等参数 // 数据位：8 // 停止位：1 // 校验位：NoneserialPort.setSerialPortParams(getBaudRate(), getDataBits(), getStopBits(), getParity());} catch (UnsupportedCommOperationException e) {throw new RuntimeException("打开串口异常");}return serialPort;}} catch (Exception e1) {throw new RuntimeException("打开串口异常");}return null;}
}

实现代码 3 通讯类

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.*;
import com.serotonin.modbus4j.serial.SerialPortWrapper;
import com.sotring.asd.modbus.suport.SerialPortSupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.util.Arrays;public class RtuMasterWrapper {private static final Logger log = LoggerFactory.getLogger(RtuMasterWrapper.class);private int slaveId;private ModbusMaster rutMaster;private boolean connected;public RtuMasterWrapper(int slaveId) {this.slaveId = slaveId;log.info("slaveId: {}",  slaveId);}public boolean connect() {disconnect();try {SerialPortWrapper port = new SerialPortSupport("COM1",9600);rutMaster = new ModbusFactory().createRtuMaster(port);rutMaster.setTimeout(3000);rutMaster.init();connected = true;} catch (ModbusInitException ex) {log.error("connect error, try to disconnect...", ex);disconnect();}return isConnected();}private void disconnect() {if (rutMaster != null) {rutMaster.destroy();}connected = false;log.info("disconnect");}private boolean isConnected() {return connected;}/*** 读取单个线圈（01功能码）* @param startOffset 读取地址*/public Boolean readCoils(int startOffset) throws ModbusTransportException {ReadCoilsRequest request = new ReadCoilsRequest(slaveId,startOffset,1);ReadCoilsResponse response = (ReadCoilsResponse) rutMaster.send(request);if (response!= null && response.isException()) {throw new ModbusTransportException(response.getExceptionMessage());} else if(response!= null){return response.getBooleanData()[0];}connected = false;return null;}/*** 写入单个地址* @param startOffset 写入地址* @param value 写入值*/public void writeCoils(int startOffset,boolean value) throws ModbusTransportException {WriteCoilRequest request = new WriteCoilRequest(slaveId,startOffset,value);WriteCoilResponse response = (WriteCoilResponse) rutMaster.send(request);if (response!= null && response.isException()) {throw new ModbusTransportException(response.getExceptionMessage());}}/*** 写多个线圈（01功能码）* @param startOffset 写入开始地址* @param value 写入值集合* @throws ModbusTransportException*/public void writeCoilsMultiple(int startOffset,boolean[] value) throws ModbusTransportException {WriteCoilsRequest request = new WriteCoilsRequest(slaveId,startOffset,value);WriteCoilsResponse response = (WriteCoilsResponse) rutMaster.send(request);if (response!= null && response.isException()) {throw new ModbusTransportException(response.getExceptionMessage());}}/*** 读取单个离散线圈（02功能码）* @param startOffset 读取地址*/public Boolean readDiscrete(int startOffset) throws ModbusTransportException {ReadDiscreteInputsRequest request = new ReadDiscreteInputsRequest(slaveId,startOffset,1);ReadDiscreteInputsResponse response = (ReadDiscreteInputsResponse) rutMaster.send(request);if (response!= null && response.isException()) {throw new ModbusTransportException(response.getExceptionMessage());} else if(response!= null){return response.getBooleanData()[0];}connected = false;return null;}/*** 读取单个保持寄存器（03功能码）* @param startOffset 读取地址*/public Short readHoldingRegisterValue(int startOffset) throws ModbusTransportException {ReadHoldingRegistersRequest request = new ReadHoldingRegistersRequest(slaveId, startOffset, 1);log.info("Reading Holding Register, startAddress: {}", startOffset);ReadHoldingRegistersResponse response = (ReadHoldingRegistersResponse)rutMaster.send(request);if (response != null && response.isException()) {log.error("Modbus execution failed: \nslaveId: {}, startAddress: {}", slaveId, startOffset);return null;} else if (response != null && response.getShortData().length > 0) {return response.getShortData()[0];}connected = false;return null;}/*** 读取多个保持寄存器（03功能码）* @param startOffset 开始读取位置* @param numberOfRegisters 读取个数*/public short[] readHoldingRegisterValues(int startOffset, int numberOfRegisters) throws ModbusTransportException {ReadHoldingRegistersRequest request = new ReadHoldingRegistersRequest(slaveId, startOffset, numberOfRegisters);log.info("Reading Holding Registers, startAddress: {}, len: {}", startOffset, numberOfRegisters);ReadHoldingRegistersResponse response = (ReadHoldingRegistersResponse)rutMaster.send(request);if (response != null && response.isException()) {log.error("Modbus execution failed: \nslaveId: {}, startAddress: {}, len: {}", slaveId, startOffset, numberOfRegisters);return null;} else if (response != null) {return response.getShortData();}connected = false;return null;}/*** 写入保持寄存器多个值（03功能码）* @param startOffset 写入开始地址* @param values 写入多个数据集合*/public void writeRegisterValues(int startOffset, short[] values) throws ModbusTransportException {WriteRegistersRequest request = new WriteRegistersRequest(slaveId, startOffset, values);log.info(String.format("WRITE Holding Register, startOffset: %d, values: %s",startOffset, Arrays.toString(values)));WriteRegistersResponse response = (WriteRegistersResponse) rutMaster.send(request);if (response!= null && response.isException()) {throw new ModbusTransportException(response.getExceptionMessage());}}/*** 写入保持寄存器（03功能码）* @param startOffset 写入地址* @param value 写入值*/public void writeRegisterValue(int startOffset, short value) throws ModbusTransportException {WriteRegistersRequest request = new WriteRegistersRequest(slaveId, startOffset, new short[]{value});log.info(String.format("Writing Holding Register, startAddress: %d, value: %d", startOffset, value));WriteRegistersResponse response = (WriteRegistersResponse) rutMaster.send(request);if (response!= null && response.isException()) {throw new ModbusTransportException(response.getExceptionMessage());}}/*** 读取输入寄存器（04功能码）* @param startOffset 读取地址*/public Short readInput(int startOffset) throws ModbusTransportException {ReadInputRegistersRequest request = new ReadInputRegistersRequest(slaveId,startOffset,1);ReadInputRegistersResponse response = (ReadInputRegistersResponse) rutMaster.send(request);if (response!= null && response.isException()) {throw new ModbusTransportException(response.getExceptionMessage());} else if(response!= null){return response.getShortData()[0];}connected = false;return null;}
}

java与modbusRtu(COM口)通讯相关推荐

西门子smart200 自由口通讯（接收部分）
SMART S7-200PLC和测试仪器的自由口通讯程序和代码讲解可以参看下面这篇博文: SMART S7-200PLC与仪器串行自由口通讯(耐压测试仪)_RXXW_Dor的博客-CSDN博客很多测试 ...
android与PC，C#与Java 利用protobuf 进行无障碍通讯【Socket】
protobuf 是什么? Protocol buffers是一种编码方法构造的一种有效而可扩展的格式的数据. 谷歌使用其内部几乎RPC协议和文件格式的所有协议缓冲区. 参考文档 http://cod ...
Socket网络通讯开发总结之：Java 与 C进行Socket通讯
先交待一下业务应用背景: 服务端:移动交费系统:基于C语言的Unix系统客户端:增值服务系统:基于Java的软件系统通迅协议:采用TCP/IP协议,使用TCP以异步方式接入数据传输:基于Sock ...
iec60870-5-104通讯协议编程_三菱FX编程口通讯协议1——协议解读
三菱PLC编程口通讯协议: 1.三菱PLC编程口通讯协议有四个命令,如下: 2.三菱FX系列PLC地址对应表: PLC_X Group Base AddRess=128: Const PLC_Y_Gr ...
Java集成环信即时通讯（SpringBoot）
Java集成环信即时通讯(SpringBoot) 前言:链接: 环信官网友情链接. 官网注册一个社区版账号,社区版限制注册100个用户. 企业版资费如下还有硬性要求,账号余额9000以上准备完成得 ...
FX5U项目程序，用的三菱FX5U的PLC，里面有CC- LINK通讯机器人.自由口通讯仪表.以太网套接字通讯上位机
FX5U项目程序,用的三菱FX5U的PLC,里面有CC- LINK通讯机器人.自由口通讯仪表.以太网套接字通讯上位机,脉冲控制3个步进,还有配方. PLC程序有完整的注释,结构清晰,PROFACE的触 ...
2022-08-29 AndroidR 修改默认usb连接模式为MTP(Media Transfer Protocol)），UsbDeviceManager.java里面处理OTG口usb设备拔插侦听
一.默认是做为adb 调试功能,实际测试修改persist.sys.usb.config 是没有用. 二.拔插usb设备默认的选项是No data transfer 三.按下面的修改就可以修改默认u ...
西门子200PLC做自由口通讯，向串口1发送数据
西门子200PLC做自由口通讯,向串口1发送数据一.PLC自由口协议初始化. 根据智能设备通信时使用的波特率.校验方式.起始位等参数,配置PLC自由口,即将上述参数用MOVB指令写入SMB30(PO ...
欧姆龙cp系列plc自由口通讯台达VFD-M变频器示例
欧姆龙cp系列plc自由口通讯台达VFD-M变频器示例所需硬件:欧姆龙cp系列plc及通讯扩展板,台达VFD-M变频器,威纶通6070触摸屏. 实现功能:通过TXD,RXD指令,ASCII方式,控制 ...

java与modbusRtu(COM口)通讯

java与modbusRtu(COM口)通讯相关推荐

最新文章

热门文章