String str = ModBusUtils.bytes2HexString(bytes); System.out.println(bytes.length); if(bytes.length == 16){ // 注册包长度为16(我这边用到4G DTU(ZHC4013)注册包长度为16,如果有变化需要修改) // 注册包为设备编号,设备编号是唯一的。 String registerPackage = ""; for(int i=0;i<bytes.length...
modbus-utils Modbus client and server command line tools based on libmodbus. NOTE: Both apps are linked with libmodbus library. After repository is pulled do the following: compilation option 1 (cmake) $ git clone https://github.com/Krzysztow/modbus-utils $ cd modbus-utils $ git submodule...
下面是一个将Modbus字节数组转换为整数的Java代码示例: publicclassModbusUtils{publicstaticintbytesToInt(byte[]bytes){intresult=0;for(inti=0;i<bytes.length;i++){result=result<<8|(bytes[i]&0xFF);}returnresult;}} 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 在上面的代码中,我们定义了一个bytes...
$ git clone https://github.com/cosino/modbus-utils.git $ cd modbus-utils Now you can compile as usual by using make: $ make Usage Usage is quite simple, just use command: $ ./modbus-dump 10 reg 1 39 modbus-dump: reg[1]=2562/0x0a02 modbus-dump: reg[2]=1/0x0001 modbus-dump:...
ModbusMaster master = Modbus4jUtilsRtu.getMaster(); 就创建了一个modbus协议下的主站,也就是Master(具体可以去参考modbus协议的主从站资料)。 那么如何进行通讯呢,实际上Modbus协议下有很多种读写的方式,常用的是使用03方式读取数据,也就是从HoldingRegister里面读取需要的数据。那么就需要实现一个从里面读取数据的...
Serial.println("__ OK __");//Set up Serial2 connected to Modbus RTU//(Fill in your data here!)//RTUutils::prepareHardwareSerial(Serial2);//Serial2.begin(19200, SERIAL_8N1, GPIO_NUM_17, GPIO_NUM_16);//RS485串口外设 连接 Modbus RTURTUutils::prepareHardwareSerial(RS485); ...
public class ModBusUtils { public static byte[] readInputStream(InputStream inputStream) throws IOException { byte[] buffer = new byte[1024]; int len = 0; ByteArrayOutputStream bos = new ByteArrayOutputStream(); if((len = inputStream.read(buffer)) != -1) { ...
import com.takeoff.iot.modbus.common.utils.JudgeEmptyUtils; import com.takeoff.iot.modbus.common.utils.SpringContextUtil; import com.takeoff.iot.modbus.netty.channel.MiiChannel; import com.takeoff.iot.modbus.netty.device.MiiDeviceChannel; import io.netty.bootstrap.Bootstrap; ...
usingMiyaModbus.Core.Channels;usingMiyaModbus.Core.Devices;usingMiyaModbus.Core.Factories;usingMiyaModbus.Core.Networks;usingMiyaModbus.Core.Utils;usingSystem.IO.Ports;varchannel =newDefaultChannel(newSerialNetwork("COM3",9600,8, StopBits.One, Parity.None));vardevice1 =newModbusRtuDevice(channel, opt...
语句：SerialUtils.setSerialPortFactory(new SerialPortFactoryLoopback(true));modbus master读写slave操作的各个类，结合功能码来看，更加方便：读操作：ReadHoldingRegistersRequest ：读取保持寄存器。ReadHoldingRegistersResponse：获取读取的内容。写操作：WriteSingleRegisterRequest：预置单寄存器。WriteSingleRegisterResponse...