ModbusTCP在C#下的实现代码.pdf

ModbusTCP 在C#下的实现代码 using (TcpClient client = new TcpClient(ip, 502)) using (ModbusIpMaster master = ModbusIpMaster.CreateIp(client)) { //处理逻辑 //例： //读取 %MW100.3 的值 bool requestIn = master.GetX(100, 3); //设置 %MW100.3 的值 master.SetX(100,3,true); } //获取bool 值 public static bool GetX(this ModbusIpMaster master, ushort pos, ushort index) { bool returnValue = false; try { if (master != null) { int iReturn = Convert.ToInt32(master.ReadHoldingRegisters(pos, 1)[0]); string str = Convert.ToString(iReturn, 2).PadLeft(16, 0); //char[] arr = str.ToCharArray(); return str[15 - index] == 0 ? false : true; } } catch (Exception e) { throw (e); } return returnValue; } //设置bool 值 public static void SetX(this ModbusIpMaster master, ushort pos, ushort index, bool value) { try { if (master != null) { int iReturn = Convert.ToInt32(master.ReadHoldingRegisters(pos, 1)[0]); string str = Convert.ToString(iReturn, 2).PadLeft(16, 0); char c = 0; if (value) c = 1; char[] cc = str.ToArray(); cc[15 - index] = c; ushort ivalue = Convert.ToUInt16(Stri