/// <summary>
/// 给检测板写开始检测命令，并解析检测板回复的应答数据帧
/// </summary>
/// <param name="obis">OBIS码</param>
/// <param name="parameter">obis参数,若obis参数为空，传入""或string.Empty</param>
public WriteResult Write(string obis, string parameter)
{
byte[] startTestCommand = GetCommand(obis, true, parameter);
byte[] recvData;
bool wrongFrameFlag = true;
string str = string.Empty;
while (wrongFrameFlag)
{
try
{
//将检测命令发给检测板,并等待检测板回复应答结果
recvData = WriteCommand(startTestCommand, timeoutValue);
}
catch (CommunicationException ex)
{
throw new CommunicationException(ex.Message);
}
//以下是对检测板回复应答帧的解析 正确应答：Success，异常应答：STX (ERR_Code) ETX BCC
int index = Array.IndexOf(recvData, (byte)0x06);
//正确应答 ACK
if (index != -1)
{
return(new WriteResult(true));
}
try
{
str = ParseReply(recvData);
}
catch (CommunicationException) //错误帧
{
wrongFrameFlag = true;
continue;
}
//错误帧，e.g. 02 28 30 29 03 32，虽然是完整帧，但既不是ACK 也不是异常应答(STX (ERR_Code) ETX BCC)
if (!(str.Contains("ERR") && str.Length == 6)) //错误帧
{
wrongFrameFlag = true;
continue;
//throw new CommunicationException(Resources.IncorrectResponse);
}
}
//异常应答完整数据帧
WriteError error = new WriteError();
error.ErrorCode = ParseExceptionResponse(str);
return(new WriteResult(false, error));
}
/// <summary>
/// 读取检测结果
/// </summary>
/// <param name="obis">OBIS码</param>
/// <param name="parameter">OBIS参数</param>
/// <param name="testResult">括号里面的检测结果或者错误码</param>
/// <returns>是否检测成功</returns>
public bool TryRead(string obis, string parameter, out ReadResult testResult)
{
//组帧
byte[] readResultCommand = GetCommand(obis, false, parameter);
//发帧
byte[] recvData = WriteCommand(readResultCommand, timeoutValue);
//解析帧，将括号里的内容读出来
string readResult = ParseReply(recvData);
if (readResult.Contains("ERR") && readResult.Length == 6)
{
WriteError error = new WriteError();
error.ErrorCode = ParseExceptionResponse(readResult);
testResult = new ReadResult(false, error);
return(false);
}
testResult = new ReadResult(true, readResult);
return(true);
}
/// <summary>
/// 读取检测结果
/// </summary>
/// <param name="obis">OBIS码</param>
/// <param name="parameter">OBIS参数</param>
/// <returns>检测板返回结果</returns>
public ReadResult Read(string obis, string parameter)
{
//组帧
byte[] readResultCommand = GetCommand(obis, false, parameter);
string testResult = string.Empty;
int i = 0;
for (i = 0; i < retransmissionCount; i++)
{
//发帧
byte[] recvData = WriteCommand(readResultCommand, timeoutValue);
try
{
//解析帧，将括号里的内容读出来
testResult = ParseReply(recvData);
}
catch (CommunicationException) //错误帧，重传
{
continue;
}
break;
}
if (i == retransmissionCount)
{
throw new CommunicationException(Resources.IncorrectResponse);
}
if (testResult.Contains("ERR") && testResult.Length == 6)
{
WriteError error = new WriteError();
error.ErrorCode = ParseExceptionResponse(testResult);
return(new ReadResult(false, error));
}
return(new ReadResult(true, testResult));
}
/// <summary>
///
/// </summary>
/// <param name="success"></param>
/// <param name="error"></param>
/// <param name="data"></param>
public ReadResult(bool success, WriteError error, string data)
{
Success = success;
Error = error;
Data = data;
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="success"></param>
/// <param name="error"></param>
public ReadResult(bool success, WriteError error)
{
Success = success;
Error = error;
}
