public ModbusRTUResponseBody RequestModbusRTUData(ModbusRTURequestBody request)
{
ModbusRTUResponseBody response = new ModbusRTUResponseBody();
response.ServerID = request.ServerID;
response.DeviceAddr = request.DeviceAddr;
response.FunctionCode = request.FunctionCode;
response.ErrorMessage = string.Empty;
response.ResponseTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
ModbusRtuTcpServerHost tcpServerHost = HostContainer.GetModbusRtuTcpServerHostByServerID(request.ServerID);
if (tcpServerHost == null)
{
response.ErrorMessage = string.Format("数据采集服务未启动或未成功连接数据源");
response.Status = "0";
return(response);
}
byte devAddr;
if (!byte.TryParse(request.DeviceAddr, out devAddr))
{
response.ErrorMessage = string.Format("设备地址[{0}]无效", request.DeviceAddr);
response.Status = "0";
return(response);
}
byte funcCode;
if (!byte.TryParse(request.FunctionCode, out funcCode))
{
response.ErrorMessage = string.Format("功能代码[{0}]无效", request.FunctionCode);
response.Status = "0";
return(response);
}
ushort startAddr;
if (!ushort.TryParse(request.StartAddr, out startAddr))
{
response.ErrorMessage = string.Format("起始寄存器地址[{0}]无效", request.StartAddr);
response.Status = "0";
return(response);
}
ushort regCount;
if (!ushort.TryParse(request.RegCount, out regCount))
{
response.ErrorMessage = string.Format("读取寄存器数量[{0}]无效", request.RegCount);
response.Status = "0";
return(response);
}
try
{
string respCRC = string.Empty;
response.DataContent = tcpServerHost.RequestModbusRTUData(devAddr, funcCode, startAddr, regCount, out respCRC);
response.DataLength = (regCount * 2).ToString();
response.ResponseTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
response.ResponseCRC = respCRC;
response.Status = "1";
}
catch (Exception ex)
{
response.DataContent = null;
response.DataLength = "0";
response.ErrorMessage = ex.Message;
response.Status = "0";
response.ResponseTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
}
return(response);
}