. NET 을 사용한 MODBUS TCP 통신 예제 코드

Modbus RTUマスター简单读書き込み操作。

using System;
using EasyModbus;
 
namespace ModbusRS485Master
{
	class Program
	{
		public static void Main(string[] args)
		{
			ModbusClient modbusClient = new ModbusClient("COM1");
			//modbusClient.UnitIdentifier = 1; Not necessary since default slaveID = 1;
			//modbusClient.Baudrate = 9600;	// Not necessary since default baudrate = 9600
			//modbusClient.Parity = System.IO.Ports.Parity.None;
			//modbusClient.StopBits = System.IO.Ports.StopBits.Two;
			//modbusClient.ConnectionTimeout = 500;			
			modbusClient.Connect();
			
			Console.WriteLine("Value of Discr. Input #1: "+modbusClient.ReadDiscreteInputs(0,1)[0].ToString());	//Reads Discrete Input #1
			Console.WriteLine("Value of Input Reg. #10: "+modbusClient.ReadInputRegisters(9,1)[0].ToString());	//Reads Inp. Reg. #10
			
			modbusClient.WriteSingleCoil(4,true);		//Writes Coil #5
			modbusClient.WriteSingleRegister(19,4711);	//Writes Holding Reg. #20
			
			Console.WriteLine("Value of Coil #5: "+modbusClient.ReadCoils(4,1)[0].ToString());	//Reads Discrete Input #1
			Console.WriteLine("Value of Holding Reg.. #20: "+modbusClient.ReadHoldingRegisters(19,1)[0].ToString());	//Reads Inp. Reg. #10
			modbusClient.WriteMultipleRegisters(49, new int[10] {1,2,3,4,5,6,7,8,9,10});
			modbusClient.WriteMultipleCoils(29, new bool[10] {true,true,true,true,true,true,true,true,true,true,});
			
			Console.Write("Press any key to continue . . . ");
			Console.ReadKey(true);
		}
	}
}

Modbus-TCP Client 简单读書き込み操作。

namespace ModbusClientApplication
{
    class Program
    {
        public static void Main(string[] args)
        {
            ModbusClient modbusClient = new ModbusClient("190.201.100.100", 502);    //Ip-Address and Port of Modbus-TCP-Server
            modbusClient.Connect();                                                    //Connect to Server
            modbusClient.WriteMultipleCoils(4, new bool[] {true, true, true, true, true, true, true, true, true, true});    //Write Coils starting with Address 5
            bool[] readCoils = modbusClient.ReadCoils(9,10);                        //Read 10 Coils from Server, starting with address 10
            int[] readHoldingRegisters = modbusClient.ReadHoldingRegisters(0,10);    //Read 10 Holding Registers from Server, starting with Address 1

            // Console Output
            for (int i = 0; i < readCoils.Length; i++)
                Console.WriteLine("Value of Coil " + (9 + i + 1) + " " + readCoils[i].ToString());
                        
            for (int i = 0; i < readHoldingRegisters.Length; i++)
                Console.WriteLine("Value of HoldingRegister " + (i + 1) + " "+ readHoldingRegisters[i].ToString());            
            modbusClient.Disconnect();                                                //Disconnect from Server
            Console.Write("Press any key to continue . . . ");
            Console.ReadKey(true);
        }
    }
}

从Modus-Serve読み取り值，并将值发布到MQTT代理

 class Program
    {
        static void Main(string[] args)
        {
            EasyModbus.ModbusClient modbusClient = new EasyModbus.ModbusClient("127.0.0.1", 502);
            //Increase the Connection Timeout to 5 seconds
            modbusClient.ConnectionTimeout = 5000;
            //We create a Log File. This will also active the Event logging 
            modbusClient.LogFileFilename = "test.txt";
            //The Messages sent to the MQTT-Broker will be retained in the Broker. After subscribtion, the client will automatically
            마지막으로 저장 된 메시지를 수신 합니다 . Rece ive the last reta ined message .기본적으로 Ret in - Flag 는 F AL SE -> 메시 지가 유지 되지 않습니다 .
            mod bus C li ent . M q tt R eta in M ess ages = true ;
            Mod bus TCP 서버 에 연결 하기
            mod bus C li ent . Connect () ;
            while (tr ue)
            {
                서버 에서 두 개의 레 지 스트 리를 읽고 M Q TT - Br oker 에 게시 합니다 .기본적으로 값 이 게시 됩니다 . By default V alu es are published
                기본적으로 우리는 ' e as ym od bus cli ent /' 과 주 소를 게시 합니다 . e . g . ' ' e as ym od bus cli ent / holding reg ister 1 ' '
                " Pass word " 및 " U ser name " 은 사용자 와 암호 를 필요로 하는 브 로 커 에 연결 하는 데 사용할 수 있습니다 .기본적으로 the 
                M Q TT - 브 로 커 포 트는 188 3 입니다 .
                www.mqtt-dashboard.com int
                System . Th re ading . Thread . Sleep (1 000)
            }
            mod bus C li ent . Dis conne ct () ;
            Con sole . Read K ey () ;
        }
    }

Mode - Server 에서 값을 자동 으로 폴 링 하여 M Q TT 에이 전 트에 게시 합니다 .

        static void Main(string
        {
            Easy Mod bus . Easy Mod bus 2 M q tt easy Mod bus 2 M q tt = new Easy Mod bus . Easy Mod bus 2 M q tt ();
            //easyModbus2Mqtt.AutomaticReconnect
            easy Mod bus 2 M q tt . M q tt U ser N ame = " sr 55 5 ";
            easy Mod bus 2 M q tt . M q tt Pass word = " ** ** ** ** ** ** ** ** **
            easy Mod bus 2 M q tt . M q tt B rok er Port = 1897 2;
            broker.hivemq.com//easyModbus2Mqtt.MqttBrokerAddress
            192.168.178.101//easyModbus2Mqtt.MqttBrokerAddress
            m21.cloudmqtt.com easyModbus2Mqtt.MqttBrokerAddress = "
            127.0.0.1 easyModbus2Mqtt.ModbusIPAddress = "
            easyModbus2Mqtt.AddReadOrder(EasyModbus.FunctionCode.ReadCoils, 2, 0, 200, new string
            easy Mod bus 2 M q tt . Add Read Or der (E asy Mod bus . Fun ction C ode . Read In put Reg ister s , 2, 0, 200);
            Easy Mod bus . Read Or der read Or der = new Easy Mod bus . Read Or der () ;
            readOrder.Hysteresis = new int
            readOrder.Unit = new string
            readOrder.Scale = new float
            read Or der . Quant ity = 10
            read Or der . Start ing Add ress = 10;
            read Or der . Fun ction C ode = Easy Mod bus . Fun ction C ode . Read H old ing Reg ister s ;          
            easy Mod bus 2 M q tt . Add Read Or der (read Or der);
            easy Mod bus 2 M q tt . start () ;
        }

Mod bus TCP 서버 가 변경 된 값을 M Q TT 에이 전 트에 게시 합니다 .

   클래 스 프로그램
    {
        static void Main(string
        {
            프로그램 application = new Program ();
            application . start Ser ver () ;

        }

        public vo id start Ser ver ()
        {
            Easy Mod bus . Mod bus Ser ver mod bus Ser ver = new Easy Mod bus . Mod bus Ser ver ();
            mod bus Ser ver . M q tt Ro ot Top ic = " ex ample mod bus ser ver ";
            www.mqtt-dashboard.com modbusServer.MqttBrokerAddress = "
            mod bus Ser ver . Listen () ;
            mod bus Ser ver . holding Reg ister s C hang ed + = new Easy Mod bus . Mod bus Ser ver . Hold ing Reg ister s C hang ed (hold ing Reg ister s C hang ed);
            Con sole . Read K ey () ;
            
            mod bus Ser ver . Stop L isten ing () ;
        }

        public vo id holding Reg ister s C hang ed (int beginning Add ress , int quant ity)
        {
            Con sole . Write L ine (start ing Add ress);
            Con sole . Write L ine (quant ity);
        }
    }