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+using System;
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+using System.Net.Sockets;
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+using System.Threading;
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+
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+namespace OmronFinsTCP.Net
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+{
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+ public class EtherNetPLC
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+ {
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+ /// <summary>
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+ /// PLC节点号,调试方法,一般不需要使用
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+ /// </summary>
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+ public string PLCNode
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+ {
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+ get { return BasicClass.plcNode.ToString(); }
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+ }
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+
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+ /// <summary>
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+ /// PC节点号,调试方法,一般不需要使用
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+ /// </summary>
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+ public string PCNode
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+ {
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+ get { return BasicClass.pcNode.ToString(); }
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+ }
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+
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+ /// <summary>
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+ /// 实例化PLC操作对象
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+ /// </summary>
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+ public EtherNetPLC()
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+ {
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+ BasicClass.Client = new TcpClient();
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+ }
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+
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+ /// <summary>
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+ /// 与PLC建立TCP连接
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+ /// </summary>
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+ /// <param name="rIP">PLC的IP地址</param>
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+ /// <param name="rPort">端口号,默认9600</param>
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+ /// <param name="timeOut">超时时间,默认3000毫秒</param>
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+ /// <returns></returns>
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+ public short Link(string rIP, short rPort, short timeOut = 3000)
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+ {
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+ if(BasicClass.PingCheck(rIP,timeOut))
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+ {
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+ BasicClass.Client.Connect(rIP, (int)rPort);
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+ BasicClass.Stream = BasicClass.Client.GetStream();
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+ Thread.Sleep(10);
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+
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+ if (BasicClass.SendData(FinsClass.HandShake()) != 0)
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+ {
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+ return -1;
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+ }
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+ else
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+ {
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+ //开始读取返回信号
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+ byte[] buffer = new byte[24];
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+ if (BasicClass.ReceiveData(buffer) != 0)
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+ {
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+ return -1;
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+ }
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+ else
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+ {
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+ if (buffer[15] != 0)//TODO:这里的15号是不是ERR信息暂时不能完全肯定
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+ return -1;
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+ else
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+ {
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+ BasicClass.pcNode = buffer[19];
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+ BasicClass.plcNode = buffer[23];
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+ return 0;
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+ }
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+ }
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+ }
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+ }
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+ else
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+ {
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+ //连接超时
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+ return -1;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 关闭PLC操作对象的TCP连接
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+ /// </summary>
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+ /// <returns></returns>
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+ public short Close()
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+ {
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+ try
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+ {
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+ BasicClass.Stream.Close();
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+ BasicClass.Client.Close();
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+ return 0;
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+ }
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+ catch
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+ {
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+ return -1;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 读值方法(多个连续值)
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+ /// </summary>
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+ /// <param name="mr">地址类型枚举</param>
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+ /// <param name="ch">起始地址</param>
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+ /// <param name="cnt">地址个数</param>
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+ /// <param name="reData">返回值</param>
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+ /// <returns></returns>
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+ public short ReadWords(PlcMemory mr, short ch, short cnt, out short[] reData)
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+ {
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+ reData = new short[(int)(cnt)];//储存读取到的数据
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+ int num = (int)(30 + cnt * 2);//接收数据(Text)的长度,字节数
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+ byte[] buffer = new byte[num];//用于接收数据的缓存区大小
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+ byte[] array = FinsClass.FinsCmd(RorW.Read, mr, MemoryType.Word, ch, 00, cnt);
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+ if (BasicClass.SendData(array) == 0)
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+ {
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+ if (BasicClass.ReceiveData(buffer) == 0)
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+ {
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+ //命令返回成功,继续查询是否有错误码,然后在读取数据
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+ bool succeed = true;
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+ if (buffer[11] == 3)
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+ succeed = ErrorCode.CheckHeadError(buffer[15]);
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+ if (succeed)//no header error
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+ {
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+ //endcode为fins指令的返回错误码
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+ if (ErrorCode.CheckEndCode(buffer[28], buffer[29]))
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+ {
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+ //完全正确的返回,开始读取返回的具体数值
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+ for (int i = 0; i < cnt; i++)
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+ {
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+ //返回的数据从第30字节开始储存的,
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+ //PLC每个字占用两个字节,且是高位在前,这和微软的默认低位在前不同
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+ //因此无法直接使用,reData[i] = BitConverter.ToInt16(buffer, 30 + i * 2);
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+ //先交换了高低位的位置,然后再使用BitConverter.ToInt16转换
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+ byte[] temp = new byte[] { buffer[30 + i * 2 + 1], buffer[30 + i * 2] };
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+ reData[i] = BitConverter.ToInt16(temp, 0);
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+ }
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+ return 0;
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 读单个字方法
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+ /// </summary>
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+ /// <param name="mr"></param>
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+ /// <param name="ch"></param>
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+ /// <param name="reData"></param>
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+ /// <returns></returns>
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+ public short ReadWord(PlcMemory mr, short ch, out short reData)
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+ {
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+ short[] temp;
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+ reData = new short();
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+ short re = ReadWords(mr, ch, (short)1, out temp);
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+ if (re != 0)
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+ return -1;
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+ else
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+ {
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+ reData = temp[0];
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+ return 0;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 写值方法(多个连续值)
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+ /// </summary>
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+ /// <param name="mr">地址类型枚举</param>
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+ /// <param name="ch">起始地址</param>
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+ /// <param name="cnt">地址个数</param>
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+ /// <param name="inData">写入值</param>
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+ /// <returns></returns>
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+ public short WriteWords(PlcMemory mr, short ch, short cnt, short[] inData)
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+ {
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+ byte[] buffer = new byte[30];
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+ byte[] arrayhead = FinsClass.FinsCmd(RorW.Write, mr, MemoryType.Word, ch, 00, cnt);//前34字节和读指令基本一直,还需要拼接下面的输入数据数组
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+ byte[] wdata = new byte[(int)(cnt * 2)];
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+ //转换写入值到wdata数组
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+ for (int i = 0; i < cnt; i++)
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+ {
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+ byte[] temp = BitConverter.GetBytes(inData[i]);
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+ wdata[i * 2] = temp[1];//转换为PLC的高位在前储存方式
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+ wdata[i * 2 + 1] = temp[0];
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+ }
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+ //拼接写入数组
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+ byte[] array = new byte[(int)(cnt * 2 + 34)];
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+ arrayhead.CopyTo(array, 0);
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+ wdata.CopyTo(array, 34);
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+ if (BasicClass.SendData(array) == 0)
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+ {
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+ if (BasicClass.ReceiveData(buffer) == 0)
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+ {
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+ //命令返回成功,继续查询是否有错误码,然后在读取数据
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+ bool succeed = true;
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+ if (buffer[11] == 3)
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+ succeed = ErrorCode.CheckHeadError(buffer[15]);
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+ if (succeed)//no header error
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+ {
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+ //endcode为fins指令的返回错误码
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+ if (ErrorCode.CheckEndCode(buffer[28], buffer[29]))
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+ {
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+ //完全正确的返回0
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+ return 0;
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 写单个字方法
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+ /// </summary>
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+ /// <param name="mr"></param>
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+ /// <param name="ch"></param>
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+ /// <param name="inData"></param>
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+ /// <returns></returns>
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+ public short WriteWord(PlcMemory mr, short ch, short inData)
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+ {
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+ short[] temp = new short[] { inData };
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+ short re = WriteWords(mr, ch, (short)1, temp);
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+ if (re != 0)
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+ return -1;
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+ else
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+ {
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+ return 0;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 读值方法-按位bit(单个)
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+ /// </summary>
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+ /// <param name="mr">地址类型枚举</param>
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+ /// <param name="ch">地址000.00</param>
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+ /// <param name="bs">返回开关状态枚举EtherNetPLC.BitState,0/1</param>
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+ /// <returns></returns>
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+ public short GetBitState(PlcMemory mr, string ch, out short bs)
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+ {
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+ bs = new short();
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+ byte[] buffer = new byte[31];//用于接收数据的缓存区大小
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+ short cnInt = short.Parse(ch.Split('.')[0]);
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+ short cnBit = short.Parse(ch.Split('.')[1]);
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+ byte[] array = FinsClass.FinsCmd(RorW.Read, mr, MemoryType.Bit, cnInt, cnBit, 1);
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+ if (BasicClass.SendData(array) == 0)
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+ {
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+ if (BasicClass.ReceiveData(buffer) == 0)
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+ {
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+ //命令返回成功,继续查询是否有错误码,然后在读取数据
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+ bool succeed = true;
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+ if (buffer[11] == 3)
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+ succeed = ErrorCode.CheckHeadError(buffer[15]);
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+ if (succeed)//no header error
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+ {
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+ //endcode为fins指令的返回错误码
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+ if (ErrorCode.CheckEndCode(buffer[28], buffer[29]))
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+ {
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+ //完全正确的返回,开始读取返回的具体数值
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+ bs = (short)buffer[30];
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+ return 0;
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 写值方法-按位bit(单个)
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+ /// </summary>
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+ /// <param name="mr">地址类型枚举</param>
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+ /// <param name="ch">地址000.00</param>
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+ /// <param name="bs">开关状态枚举EtherNetPLC.BitState,0/1</param>
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+ /// <returns></returns>
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+ public short SetBitState(PlcMemory mr, string ch, BitState bs)
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+ {
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+ byte[] buffer = new byte[30];
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+ short cnInt = short.Parse(ch.Split('.')[0]);
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+ short cnBit = short.Parse(ch.Split('.')[1]);
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+ byte[] arrayhead = FinsClass.FinsCmd(RorW.Write, mr, MemoryType.Bit, cnInt, cnBit, 1);
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+ byte[] array = new byte[35];
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+ arrayhead.CopyTo(array, 0);
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+ array[34] = (byte)bs;
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+ if (BasicClass.SendData(array) == 0)
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+ {
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+ if (BasicClass.ReceiveData(buffer) == 0)
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+ {
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+ //命令返回成功,继续查询是否有错误码,然后在读取数据
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+ bool succeed = true;
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+ if (buffer[11] == 3)
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+ succeed = ErrorCode.CheckHeadError(buffer[15]);
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+ if (succeed)//no header error
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+ {
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+ //endcode为fins指令的返回错误码
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+ if (ErrorCode.CheckEndCode(buffer[28], buffer[29]))
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+ {
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+ //完全正确的返回0
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+ return 0;
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// 读一个浮点数的方法,单精度,在PLC中占两个字
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+ /// </summary>
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+ /// <param name="mr">地址类型枚举</param>
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+ /// <param name="ch">起始地址,会读取两个连续的地址,因为单精度在PLC中占两个字</param>
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+ /// <param name="reData">返回一个float型</param>
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+ /// <returns></returns>
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+ public short ReadReal(PlcMemory mr, short ch,out float reData)
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+ {
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+ reData = new float();
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+ int num = (int)(30 + 2 * 2);//接收数据(Text)的长度,字节数
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+ byte[] buffer = new byte[num];//用于接收数据的缓存区大小
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+ byte[] array = FinsClass.FinsCmd(RorW.Read, mr, MemoryType.Word, ch, 00, 2);
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+ if (BasicClass.SendData(array) == 0)
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+ {
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+ if (BasicClass.ReceiveData(buffer) == 0)
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+ {
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+ //命令返回成功,继续查询是否有错误码,然后在读取数据
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+ bool succeed = true;
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+ if (buffer[11] == 3)
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+ succeed = ErrorCode.CheckHeadError(buffer[15]);
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+ if (succeed)//no header error
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+ {
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+ //endcode为fins指令的返回错误码
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+ if (ErrorCode.CheckEndCode(buffer[28], buffer[29]))
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+ {
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+ //完全正确的返回,开始读取返回的具体数值
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+ byte[] temp = new byte[] { buffer[30 + 1], buffer[30], buffer[30 + 3], buffer[30 + 2] };
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+ reData = BitConverter.ToSingle(temp, 0);
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+ return 0;
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ else
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+ {
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+ return -1;
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+ }
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+ }
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+ }
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+}
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