/// <summary>
/// 检查当前的Modbus-Ascii响应是否是正确的
/// </summary>
/// <param name="send">发送的数据信息</param>
/// <returns>带是否成功的结果数据</returns>
protected override OperateResult <byte[]> CheckModbusTcpResponse(byte[] send)
{
// 转ascii
byte[] modbus_ascii = ModbusInfo.TransRtuToAsciiPackCommand(send);
// 核心交互
OperateResult <byte[]> result = ReadBase(modbus_ascii);
if (!result.IsSuccess)
{
return(result);
}
// 还原modbus报文
OperateResult <byte[]> modbus_core = ModbusInfo.TransAsciiPackCommandToRtu(result.Content);
if (!modbus_core.IsSuccess)
{
return(modbus_core);
}
// 发生了错误
if ((send[1] + 0x80) == modbus_core.Content[1])
{
return(new OperateResult <byte[]>(modbus_core.Content[2], ModbusInfo.GetDescriptionByErrorCode(modbus_core.Content[2])));
}
// 成功的消息
return(OperateResult.CreateSuccessResult(modbus_core.Content));
}
/// <summary>
/// 从Modbus服务器批量读取寄存器的信息，需要指定起始地址，读取长度
/// </summary>
/// <param name="address">起始地址，格式为"1234"，或者是带功能码格式x=3;1234</param>
/// <param name="length">读取的数量</param>
/// <returns>带有成功标志的字节信息</returns>
/// <remarks>
/// 富地址格式，支持携带站号信息，功能码信息，具体参照类的示例代码
/// </remarks>
/// <example>
/// 此处演示批量读取的示例
/// <code lang="cs" source="YumpooDrive_Net45.Test\Documentation\Samples\Modbus\Modbus.cs" region="ReadExample1" title="Read示例" />
/// </example>
public override OperateResult <byte[]> Read(string address, ushort length)
{
OperateResult <ModbusAddress> analysis = ModbusInfo.AnalysisReadAddress(address, isAddressStartWithZero);
if (!analysis.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(analysis));
}
List <byte> lists = new List <byte>( );
ushort alreadyFinished = 0;
while (alreadyFinished < length)
{
ushort lengthTmp = (ushort)Math.Min((length - alreadyFinished), 120);
OperateResult <byte[]> read = ReadModBusBase(analysis.Content.AddressAdd(alreadyFinished), lengthTmp);
if (!read.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(read));
}
lists.AddRange(read.Content);
alreadyFinished += lengthTmp;
}
return(OperateResult.CreateSuccessResult(lists.ToArray( )));
}
/// <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>包含结果对象的报文</returns>
private OperateResult <byte[]> BuildReadRegisterCommand(ModbusAddress address, ushort length)
{
// 获取消息号
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>
/// 生成批量写入寄存器的报文信息
/// </summary>
/// <param name="address">地址</param>
/// <param name="values">实际值</param>
/// <returns>包含结果对象的报文</returns>
public OperateResult <byte[]> BuildWriteRegisterCommand(string address, byte[] values)
{
OperateResult <ModbusAddress> analysis = ModbusInfo.AnalysisReadAddress(address, isAddressStartWithZero);
if (!analysis.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(analysis));
}
// 生成最终rtu指令
byte[] buffer = ModbusInfo.PackCommandToRtu(analysis.Content.CreateWriteRegister(station, values));
return(OperateResult.CreateSuccessResult(buffer));
}
/// <summary>
/// 生成一个读取离散信息的指令头
/// </summary>
/// <param name="address">地址</param>
/// <param name="length">长度</param>
/// <returns>携带有命令字节</returns>
public OperateResult <byte[]> BuildReadDiscreteCommand(string address, ushort length)
{
OperateResult <ModbusAddress> analysis = ModbusInfo.AnalysisReadAddress(address, isAddressStartWithZero);
if (!analysis.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(analysis));
}
// 生成最终tcp指令
byte[] buffer = ModbusInfo.PackCommandToRtu(analysis.Content.CreateReadDiscrete(station, length));
return(OperateResult.CreateSuccessResult(buffer));
}
/// <summary>
/// 检查当前的Modbus-Tcp响应是否是正确的
/// </summary>
/// <param name="send">发送的数据信息</param>
/// <returns>带是否成功的结果数据</returns>
private OperateResult <byte[]> CheckModbusTcpResponse(byte[] send)
{
OperateResult <byte[]> resultBytes = ReadFromCoreServer(send);
if (resultBytes.IsSuccess)
{
if ((send[7] + 0x80) == resultBytes.Content[7])
{
// 发生了错误
resultBytes.IsSuccess = false;
resultBytes.Message = ModbusInfo.GetDescriptionByErrorCode(resultBytes.Content[8]);
resultBytes.ErrorCode = resultBytes.Content[8];
}
}
return(resultBytes);
}
/// <summary>
/// 生成批量写入寄存器的报文信息
/// </summary>
/// <param name="address">地址</param>
/// <param name="values">实际值</param>
/// <returns>包含结果对象的报文</returns>
public OperateResult <byte[]> BuildWriteRegisterCommand(string address, byte[] values)
{
// 解析富地址
OperateResult <ModbusAddress> analysis = ModbusInfo.AnalysisReadAddress(address, isAddressStartWithZero);
if (!analysis.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(analysis));
}
// 获取消息号
ushort messageId = (ushort)softIncrementCount.GetCurrentValue( );
// 生成最终tcp指令
byte[] buffer = ModbusInfo.PackCommandToTcp(analysis.Content.CreateWriteRegister(station, values), messageId);
return(OperateResult.CreateSuccessResult(buffer));
}
/// <summary>
/// 检查当前的Modbus-Rtu响应是否是正确的
/// </summary>
/// <param name="send">发送的数据信息</param>
/// <returns>带是否成功的结果数据</returns>
protected virtual OperateResult <byte[]> CheckModbusTcpResponse(byte[] send)
{
// 核心交互
OperateResult <byte[]> result = ReadBase(send);
if (!result.IsSuccess)
{
return(result);
}
// 长度校验
if (result.Content.Length < 5)
{
return(new OperateResult <byte[]>(StringResources.Language.ReceiveDataLengthTooShort + "5"));
}
// 检查crc
if (!SoftCRC16.CheckCRC16(result.Content))
{
return(new OperateResult <byte[]>(StringResources.Language.ModbusCRCCheckFailed));
}
// 发生了错误
if ((send[1] + 0x80) == result.Content[1])
{
return(new OperateResult <byte[]>(result.Content[2], ModbusInfo.GetDescriptionByErrorCode(result.Content[2])));
}
if (send[1] != result.Content[1])
{
return(new OperateResult <byte[]>(result.Content[1], $"Receive Command Check Failed: "));
}
// 移除CRC校验
byte[] buffer = new byte[result.Content.Length - 2];
Array.Copy(result.Content, 0, buffer, 0, buffer.Length);
return(OperateResult.CreateSuccessResult(buffer));
}
/// <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rtu指令
byte[] buffer = ModbusInfo.PackCommandToRtu(address.CreateReadRegister(station, length));
return(OperateResult.CreateSuccessResult(buffer));
}