HoldingRegister.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace DL.Com.Protocol.Modbus
{
/// <summary>
/// 保持寄存器
/// 0x03
/// </summary>
public class HoldingRegister : Register
{
public HoldingRegister() : base()
{
FunctionCodes.Add(RegisterFunction.Read, 0x03);
FunctionCodes.Add(RegisterFunction.WriteSingle, 0x06);
FunctionCodes.Add(RegisterFunction.WriteMultiple, 0x10);
}
/// <summary>
/// PLC地址
/// </summary>
public new string PLCAddress
{
get { return $"4{FrameStruct.PDU.Data.Addr.GetIntValue()}"; }
}
public override byte[] GetRequestBytes(RegisterFunction func, ushort startAddr, ushort countOrValue,byte equipAddr=1, ushort[] ValuesOfMultiple = null)
{
CmdByte cmdByte = new CmdByte();
cmdByte.StartAddr = Byte2.GetStru2Byte(startAddr);
cmdByte.Function = func;
cmdByte.Count = Byte2.GetStru2Byte(countOrValue);
if (func.Equals(RegisterFunction.WriteMultiple))
{
if (ValuesOfMultiple == null)
return null;
List<byte> values = new List<byte>();
foreach (var item in ValuesOfMultiple)
{
values.AddRange(Byte2.GetStru2Byte(item).ToBytes());
}
cmdByte.ByteLength = (byte)(countOrValue * 2);
cmdByte.ValuesOfMultiple = values.ToArray();
}
SetMBAP(_serialnum, equipAddr);
SetParamPDU(cmdByte);
return DataFrame;
}
protected override void SetParamPDU(CmdByte cmdByte)
{
if (cmdByte.Function.Equals(RegisterFunction.WriteSingle))
{
SetPDU(cmdByte.Function, cmdByte.StartAddr, cmdByte.Count, cmdByte.ByteLength, cmdByte.ValuesOfMultiple);
}
else if (cmdByte.Function.Equals(RegisterFunction.WriteMultiple))
{
SetPDU(cmdByte.Function, cmdByte.StartAddr, cmdByte.Count, cmdByte.ByteLength, cmdByte.ValuesOfMultiple);
}
else
SetPDU(RegisterFunction.Read, cmdByte.StartAddr, cmdByte.Count);
}
protected override bool ParseWriteSingle(byte[] response)
{
if (GetResponseResult(response, out byte[] data))
{
//数据部分，发送与接收一致
byte[] senddata = FrameStruct.PDU.Data.ToBytes();
if (data != null && data.Length != senddata.Length)
return false;
for (int i = 0; i < senddata.Length; i++)
{
if (senddata[i] != data[i])
{
return false;
}
}
return true;
}
return false;
}
protected override bool ParseWriteMultiple(byte[] response)
{
if (GetResponseResult(response, out byte[] data))
{
byte[] senddata = FrameStruct.PDU.Data.AddrValueToBytes();
if (data != null && data.Length != senddata.Length)
return false;
for (int i = 0; i < senddata.Length; i++)
{
if (senddata[i] != data[i])
{
return false;
}
}
return true;
}
return false;
}
}
}