/// <summary>
/// 生成一个读取寄存器的指令头
/// </summary>
/// <param name="address">地址</param>
/// <param name="length">长度</param>
/// <returns>携带有命令字节</returns>
private OperateResult <byte[]> BuildReadRegisterCommand(ModbusAddress address, ushort length)
{
ushort messageId = (ushort)softIncrementCount.GetCurrentValue( );
// 生成最终tcp指令
byte[] buffer = ModbusInfo.PackCommandToTcp(address.CreateReadRegister(station, length), messageId);
return(OperateResult.CreateSuccessResult(buffer));
}
/// <summary>
/// 读取服务器的数据，需要指定不同的功能码
/// </summary>
/// <param name="address">地址</param>
/// <param name="length">长度</param>
/// <returns>带是否成功的结果数据</returns>
private OperateResult <byte[]> ReadModBusBase(ModbusAddress address, ushort length)
{
OperateResult <byte[]> command = BuildReadRegisterCommand(address, length);
if (!command.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(command));
}
OperateResult <byte[]> resultBytes = CheckModbusTcpResponse(command.Content);
if (resultBytes.IsSuccess)
{
// 二次数据处理
if (resultBytes.Content?.Length >= 9)
{
byte[] buffer = new byte[resultBytes.Content.Length - 9];
Array.Copy(resultBytes.Content, 9, buffer, 0, buffer.Length);
resultBytes.Content = buffer;
}
}
return(resultBytes);
}
/// <summary>
/// 分析Modbus协议的地址信息，该地址适应于tcp及rtu模式
/// </summary>
/// <param name="address">带格式的地址，比如"100"，"x=4;100"，"s=1;100","s=1;x=4;100"</param>
/// <param name="isStartWithZero">起始地址是否从0开始</param>
/// <returns>转换后的地址信息</returns>
public static OperateResult <ModbusAddress> AnalysisReadAddress(string address, bool isStartWithZero)
{
try
{
ModbusAddress mAddress = new ModbusAddress(address);
if (!isStartWithZero)
{
if (mAddress.Address < 1)
{
throw new Exception("地址值在起始地址为1的情况下，必须大于1");
}
mAddress.Address = (ushort)(mAddress.Address - 1);
}
return(OperateResult.CreateSuccessResult(mAddress));
}
catch (Exception ex)
{
return(new OperateResult <ModbusAddress>( )
{
Message = ex.Message
});
}
}
/// <summary>
/// 分析Modbus协议的地址信息，该地址适应于tcp及rtu模式
/// </summary>
/// <param name="address">带格式的地址，比如"100"，"x=4;100"，"s=1;100","s=1;x=4;100"</param>
/// <param name="isStartWithZero">起始地址是否从0开始</param>
/// <returns>转换后的地址信息</returns>
public static OperateResult <ModbusAddress> AnalysisReadAddress(string address, bool isStartWithZero)
{
try
{
ModbusAddress mAddress = new ModbusAddress(address, ModbusInfo.ReadRegister);
if (!isStartWithZero)
{
if (mAddress.Address < 1)
{
throw new Exception(StringResources.Language.ModbusAddressMustMoreThanOne);
}
mAddress.Address = (ushort)(mAddress.Address - 1);
}
return(OperateResult.CreateSuccessResult(mAddress));
}
catch (Exception ex)
{
return(new OperateResult <ModbusAddress>( )
{
Message = ex.Message
});
}
}
/// <summary>
/// 生成一个读取寄存器的指令头
/// </summary>
/// <param name="address">地址</param>
/// <param name="length">长度</param>
/// <returns>携带有命令字节</returns>
private OperateResult <byte[]> BuildReadRegisterCommand(ModbusAddress address, ushort length)
{
// 生成最终tcp指令
byte[] buffer = ModbusInfo.PackCommandToRtu(address.CreateReadRegister(station, length));
return(OperateResult.CreateSuccessResult(buffer));
}