/// <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="Communication_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.AnalysisAddress(address, isAddressStartWithZero, ModbusInfo.ReadRegister);
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.AnalysisAddress(address, isAddressStartWithZero, ModbusInfo.WriteRegister);
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.AnalysisAddress(address, isAddressStartWithZero, ModbusInfo.ReadDiscrete);
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>
/// 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.AnalysisAddress(address, isAddressStartWithZero, ModbusInfo.WriteRegister);
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>
/// 读取自定义的寄存器的值。按照字为单位
/// </summary>
/// <param name="address">起始地址，示例："100"，"x=4;100"</param>
/// <param name="length">数据长度</param>
/// <exception cref="IndexOutOfRangeException"></exception>
/// <returns>byte数组值</returns>
public override OperateResult <byte[]> Read(string address, ushort length)
{
OperateResult <ModbusAddress> analysis = ModbusInfo.AnalysisAddress(address, true, ModbusInfo.ReadRegister);
if (!analysis.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(analysis));
}
if (analysis.Content.Function == ModbusInfo.ReadRegister)
{
return(OperateResult.CreateSuccessResult(registerBuffer.GetBytes(analysis.Content.Address * 2, length * 2)));
}
else if (analysis.Content.Function == ModbusInfo.ReadInputRegister)
{
return(OperateResult.CreateSuccessResult(inputRegisterBuffer.GetBytes(analysis.Content.Address * 2, length * 2)));
}
else
{
return(new OperateResult <byte[]>(StringResources.Language.NotSupportedDataType));
}
}