66 lines
2.3 KiB
C#
66 lines
2.3 KiB
C#
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using Modbus.Data;
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using Modbus.Device;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading.Tasks;
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namespace Plugin
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{
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public class ModbusSlaveService : IDisposable
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{
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TcpListener slaveTcpListener;
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private Timer m_simulationTimer;
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private object Lock=new object();
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private ModbusSlave slave;
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private Task task { get; set; } = null;
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public ModbusSlaveService()
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{
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byte slaveId = 1;
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int port = 503;
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IPAddress address = IPAddress.Any;
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// create and start the TCP slave
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slaveTcpListener = new TcpListener(address, port);
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slaveTcpListener.Start();
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slave = ModbusTcpSlave.CreateTcp(slaveId, slaveTcpListener);
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slave.DataStore = DataStoreFactory.CreateDefaultDataStore();
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slave.ListenAsync();
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m_simulationTimer = new Timer(DoSimulation, null, 1000, 1000);
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}
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private void DoSimulation(object state)
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{
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try
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{
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lock (Lock)
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{
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for (int i = 1; i <= 20; i++)
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{
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if(i != 1|| i != 2|| i != 7)
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slave.DataStore.HoldingRegisters[i] = (ushort)new Random().Next(0, short.MaxValue);
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slave.DataStore.InputRegisters[i] = (ushort)new Random().Next(0, short.MaxValue);
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slave.DataStore.CoilDiscretes[i] = new Random().Next() % 2 == 0;
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slave.DataStore.InputDiscretes[i] = new Random().Next() % 2 == 0;
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}
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slave.DataStore.HoldingRegisters[1] = (ushort)new Random().Next(2000,3000); //前端要用的温度
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slave.DataStore.HoldingRegisters[2] = (ushort)new Random().Next(4000, 7000);//湿度
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slave.DataStore.HoldingRegisters[7] = (ushort)new Random().Next(0, 10000);//随机值
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine($"modbus模拟数据失败了,{ex}");
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}
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}
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public void Dispose()
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{
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m_simulationTimer.Dispose();
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slaveTcpListener.Stop();
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}
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}
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}
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