西安软件开发中读写PLC数据

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西安软件开发中读写PLC数据

发布时间：2022/8/19 浏览次数：次字体【大中小】

PLC设备通讯创建连接
using (var plc = new Plc(CpuType.S71200, "127.0.0.1", 0, 1))
    {
                try
                {
                    plc.Open();
                }
                catch (Exception)
                {
                    Console.WriteLine($"连接到PLC设备失败：IsConnect={plc.IsConnected}，IsAvailable={plc.IsAvailable}");
                    return;
                }
    }
#region 单个数据项读取
                var db1Bool1 = plc.Read("DB1.DBX0.0");
                Console.WriteLine("DB1.DBX0.0: " + db1Bool1);

                bool db1Bool2 = (bool)plc.Read("DB1.DBX0.1");
                Console.WriteLine("DB1.DBX0.1: " + db1Bool2);

                // Int
                int intVariable = (ushort)plc.Read("DB1.DBW2.0");
                Console.WriteLine("DB1.DBW2.0: " + intVariable);
                // Real
                var realVariabl = ((uint)plc.Read("DB1.DBD4.0")).ConvertToFloat();
                Console.WriteLine("DB1.DBD4.0: " + realVariabl);
                // DInt
                var dIntVariable = (uint)plc.Read("DB1.DBD8.0");
                Console.WriteLine("DB1.DBD8.0: " + dIntVariable);
                // DWord
                var dWordVariable = (uint)plc.Read("DB1.DBD12.0");
                Console.WriteLine("DB1.DBD12.0: " + dWordVariable);
                // Word
                var wordVariable = (ushort)plc.Read("DB1.DBW16.0");
                Console.WriteLine("DB1.DBW16.0: " + wordVariable);
                #endregion
// 读取int类型
                    byte [] int0 = (byte[])plc.ReadBytes(DataType.DataBlock, 1, 2, 2);
                    byte[] revint0 = int0.Reverse().ToArray();
                    short f5 = BitConverter.ToInt16(revint0, 0);

                    Console.WriteLine("DB1.DBD2: " + f5);

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