454 lines
16 KiB
C#
454 lines
16 KiB
C#
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using System;
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using System.Linq;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Text;
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using SmartX;
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namespace ITC81DB
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{
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public class ModbusFunctionCode
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{
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public static readonly byte FunctionCode_04 = 0x04;
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public static readonly byte FunctionCode_16 = 0x16;
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}
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public class ModbusExceptionCode
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{
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public static readonly byte _01_IllegalFunction = 0x01;
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public static readonly byte _02_IllegalDataAddress = 0x02;
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public static readonly byte _03_IllegalDataValue = 0x03;
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public static readonly byte _04_ServerDeviceFailure = 0x04;
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}
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public class Modbus
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{
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#region Field
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public static int StartAddress = 10; // 시작 Address
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public static int DataRegisterLength = 34; // 전체 Register
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public static int DataLength = 68; // 전체 bytes
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public int ModbusTransactionID;
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/// <summary>
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/// RTU CRC Table
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/// </summary>
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private readonly ushort[] CRCTable =
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{
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0X0000, 0XC0C1, 0XC181, 0X0140, 0XC301, 0X03C0, 0X0280, 0XC241, 0XC601, 0X06C0,
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0X0780, 0XC741, 0X0500, 0XC5C1, 0XC481, 0X0440, 0XCC01, 0X0CC0, 0X0D80, 0XCD41,
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0X0F00, 0XCFC1, 0XCE81, 0X0E40, 0X0A00, 0XCAC1, 0XCB81, 0X0B40, 0XC901, 0X09C0,
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0X0880, 0XC841, 0XD801, 0X18C0, 0X1980, 0XD941, 0X1B00, 0XDBC1, 0XDA81, 0X1A40,
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0X1E00, 0XDEC1, 0XDF81, 0X1F40, 0XDD01, 0X1DC0, 0X1C80, 0XDC41, 0X1400, 0XD4C1,
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0XD581, 0X1540, 0XD701, 0X17C0, 0X1680, 0XD641, 0XD201, 0X12C0, 0X1380, 0XD341,
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0X1100, 0XD1C1, 0XD081, 0X1040, 0XF001, 0X30C0, 0X3180, 0XF141, 0X3300, 0XF3C1,
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0XF281, 0X3240, 0X3600, 0XF6C1, 0XF781, 0X3740, 0XF501, 0X35C0, 0X3480, 0XF441,
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0X3C00, 0XFCC1, 0XFD81, 0X3D40, 0XFF01, 0X3FC0, 0X3E80, 0XFE41, 0XFA01, 0X3AC0,
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0X3B80, 0XFB41, 0X3900, 0XF9C1, 0XF881, 0X3840, 0X2800, 0XE8C1, 0XE981, 0X2940,
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0XEB01, 0X2BC0, 0X2A80, 0XEA41, 0XEE01, 0X2EC0, 0X2F80, 0XEF41, 0X2D00, 0XEDC1,
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0XEC81, 0X2C40, 0XE401, 0X24C0, 0X2580, 0XE541, 0X2700, 0XE7C1, 0XE681, 0X2640,
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0X2200, 0XE2C1, 0XE381, 0X2340, 0XE101, 0X21C0, 0X2080, 0XE041, 0XA001, 0X60C0,
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0X6180, 0XA141, 0X6300, 0XA3C1, 0XA281, 0X6240, 0X6600, 0XA6C1, 0XA781, 0X6740,
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0XA501, 0X65C0, 0X6480, 0XA441, 0X6C00, 0XACC1, 0XAD81, 0X6D40, 0XAF01, 0X6FC0,
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0X6E80, 0XAE41, 0XAA01, 0X6AC0, 0X6B80, 0XAB41, 0X6900, 0XA9C1, 0XA881, 0X6840,
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0X7800, 0XB8C1, 0XB981, 0X7940, 0XBB01, 0X7BC0, 0X7A80, 0XBA41, 0XBE01, 0X7EC0,
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0X7F80, 0XBF41, 0X7D00, 0XBDC1, 0XBC81, 0X7C40, 0XB401, 0X74C0, 0X7580, 0XB541,
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0X7700, 0XB7C1, 0XB681, 0X7640, 0X7200, 0XB2C1, 0XB381, 0X7340, 0XB101, 0X71C0,
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0X7080, 0XB041, 0X5000, 0X90C1, 0X9181, 0X5140, 0X9301, 0X53C0, 0X5280, 0X9241,
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0X9601, 0X56C0, 0X5780, 0X9741, 0X5500, 0X95C1, 0X9481, 0X5440, 0X9C01, 0X5CC0,
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0X5D80, 0X9D41, 0X5F00, 0X9FC1, 0X9E81, 0X5E40, 0X5A00, 0X9AC1, 0X9B81, 0X5B40,
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0X9901, 0X59C0, 0X5880, 0X9841, 0X8801, 0X48C0, 0X4980, 0X8941, 0X4B00, 0X8BC1,
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0X8A81, 0X4A40, 0X4E00, 0X8EC1, 0X8F81, 0X4F40, 0X8D01, 0X4DC0, 0X4C80, 0X8C41,
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0X4400, 0X84C1, 0X8581, 0X4540, 0X8701, 0X47C0, 0X4680, 0X8641, 0X8201, 0X42C0,
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0X4380, 0X8341, 0X4100, 0X81C1, 0X8081, 0X4040
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};
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#endregion
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#region Constructor
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public Modbus()
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{
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this.DefaultSetting();
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}
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#endregion
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#region Property
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#endregion
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#region Method
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private void DefaultSetting()
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{
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this.ModbusTransactionID = 0;
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}
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public static byte[] GetBytes(int argument)
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{
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byte[] byteArray = BitConverter.GetBytes(argument);
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return byteArray;
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}
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public static byte[] GetBytes(Single argument)
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{
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byte[] byteArray = BitConverter.GetBytes(argument);
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return byteArray;
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}
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public static byte[] GetBytes(uint argument)
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{
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byte[] byteArray = BitConverter.GetBytes(argument);
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return byteArray;
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}
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/// <summary>
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/// 요청받은 Data Error Check(RTU)
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/// </summary>
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/// <param name="readByte">전송받은 전체 byte array</param>
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/// <returns></returns>
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public byte CheckRequestRTUData(byte[] readByte)
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{
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byte ret = 0x00;
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int quantity;
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int startAddressInt;
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byte[] startAddressByte = new byte[2] { readByte[2], readByte[3] };
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byte[] numberOfRegisterByte = new byte[2] { readByte[4], readByte[5] };
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// Function Code Error : 01
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if (readByte[1] != 0x04)
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ret = 0x01;
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else
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{
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if (BitConverter.IsLittleEndian)
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Array.Reverse(startAddressByte);
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startAddressInt = BitConverter.ToUInt16(startAddressByte, 0);
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if (BitConverter.IsLittleEndian)
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Array.Reverse(numberOfRegisterByte);
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quantity = BitConverter.ToUInt16(numberOfRegisterByte, 0);
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// Quantity of Registers Error : 03
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if (quantity < 1 || quantity > DataRegisterLength)
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ret = 0x03;
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else
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{
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// Starting Address and Starting Address + Quantity of Registers Error : 02
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if (10 > startAddressInt || startAddressInt > StartAddress + DataRegisterLength)
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ret = 0x02;
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else
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{
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if (startAddressInt + quantity > StartAddress + DataRegisterLength)
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ret = 0x02;
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else
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{
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byte[] crc = this.MakeRTUCRC(readByte, readByte.Length);
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int crcInt;
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crcInt = BitConverter.ToUInt16(crc, 0);
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// CRC Error : 04
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if (crcInt != 0)
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ret = 0x21;
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else
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ret = 0x00;
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}
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}
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}
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}
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return ret;
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}
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/// <summary>
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/// 요청받은 Data Error Check(TCP)
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/// </summary>
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/// <param name="readByte">전송받은 전체 byte array</param>
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/// <returns></returns>
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public byte CheckRequestTCPData(byte[] readByte)
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{
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byte ret = 0x00;
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int quantity;
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int startAddressInt;
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byte[] startAddressByte = new byte[2] { readByte[8], readByte[9] };
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byte[] numberOfRegisterByte = new byte[2] { readByte[10], readByte[11] };
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// Function Code Error : 01
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if (readByte[7] != 0x04)
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ret = 0x01;
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else
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{
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if (BitConverter.IsLittleEndian)
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Array.Reverse(startAddressByte);
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startAddressInt = BitConverter.ToUInt16(startAddressByte, 0);
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if (BitConverter.IsLittleEndian)
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Array.Reverse(numberOfRegisterByte);
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quantity = BitConverter.ToUInt16(numberOfRegisterByte, 0);
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// Quantity of Registers Error : 03
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if (quantity < 1 || quantity > DataRegisterLength)
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ret = 0x03;
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else
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{
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// Starting Address and Starting Address + Quantity of Registers Error : 02
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if (10 > startAddressInt || startAddressInt > StartAddress + DataRegisterLength)
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ret = 0x02;
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else
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{
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if (startAddressInt + quantity > StartAddress + DataRegisterLength)
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ret = 0x02;
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else
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ret = 0x00;
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}
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}
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}
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return ret;
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}
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/// <summary>
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/// RTU CRC 제작 함수 - CRCTable 이용
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/// </summary>
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/// <param name="bytes">byte array</param>
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/// <param name="length">CRC 적용할 길이(0~)</param>
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/// <returns></returns>
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public byte[] MakeRTUCRC(byte[] bytes, int length)
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{
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int icrc = 0xFFFF;
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for (int i = 0; i < length; i++)
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{
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icrc = (icrc >> 8) ^ this.CRCTable[(icrc ^ bytes[i]) & 0xff];
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}
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byte[] ret = BitConverter.GetBytes(icrc);
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return ret;
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}
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/// <summary>
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/// Modbus RTU Read - Error Response Data
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/// </summary>
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/// <param name="errorCheck">에러값(0x01~0x04)</param>
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/// <param name="slaveID">Slave ID</param>
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/// <returns></returns>
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public byte[] MakeRTUErrorResponseData(byte errorCheck, int slaveID)
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{
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byte[] sendModbusDatas;
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byte[] crc;
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sendModbusDatas = new byte[5];
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// 0 : Slave ID
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sendModbusDatas[0] = Convert.ToByte(slaveID);
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// 1 : Function Code : 0x04 + 0x80 = 0x84 : 고정값
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sendModbusDatas[1] = 0x84;
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// 2 : Error Code
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sendModbusDatas[2] = errorCheck;
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crc = this.MakeRTUCRC(sendModbusDatas, sendModbusDatas.Length - 2);
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for (int i = 0; i < 2; i++)
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sendModbusDatas[sendModbusDatas.Length - 2 + i] = crc[i];
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return sendModbusDatas;
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}
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/// <summary>
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/// Modbus RTU Read - Normal Response Data
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/// </summary>
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/// <param name="madeData">전송할 byte array</param>
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/// <param name="slaveID">Slave ID</param>
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/// <returns></returns>
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public byte[] MakeRTUResponseData(byte[] madeData, int slaveID)
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{
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byte[] sendModbusDatas;
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byte[] crc;
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sendModbusDatas = new byte[5 + madeData.Length];
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// 0 : Slave ID
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sendModbusDatas[0] = Convert.ToByte(slaveID);
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// 1 : Function Code
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sendModbusDatas[1] = 0x04;
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// 2 : Data Length
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sendModbusDatas[2] = Convert.ToByte(madeData.Length);
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for (int i = 0; i < madeData.Length; i++)
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sendModbusDatas[3 + i] = madeData[i];
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crc = this.MakeRTUCRC(sendModbusDatas, sendModbusDatas.Length - 2);
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for (int i = 0; i < 2; i++)
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sendModbusDatas[sendModbusDatas.Length - 2 + i] = crc[i];
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return sendModbusDatas;
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}
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/// <summary>
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/// Modbus RTU Write Data(판정 시 Send)
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/// </summary>
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/// <param name="madeData">전송할 byte array</param>
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/// <param name="slaveID">Slave ID</param>
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/// <param name="startAddress">Start Address</param>
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/// <returns></returns>
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public byte[] MakeRTUSendAllData(byte[] madeData, int slaveID, int startAddress)
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{
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byte[] sendModbusDatas;
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byte[] crc;
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sendModbusDatas = new byte[9 + madeData.Length];
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// 0 : Slave ID
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sendModbusDatas[0] = Convert.ToByte(slaveID);
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// 1 : Function Code
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sendModbusDatas[1] = 0x10;
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// 2~3 : Start Address
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sendModbusDatas[2] = 0x00;
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sendModbusDatas[3] = Convert.ToByte(startAddress);
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// 4~5 : Size
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sendModbusDatas[4] = 0x00;
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sendModbusDatas[5] = 0x22; // 34 registers
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// 6 : Data Length
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sendModbusDatas[6] = 0x44; // 68 bytes
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for (int i = 0; i < madeData.Length; i++)
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sendModbusDatas[7 + i] = madeData[i];
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crc = this.MakeRTUCRC(sendModbusDatas, sendModbusDatas.Length - 2);
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for (int i = 0; i < 2; i++)
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sendModbusDatas[sendModbusDatas.Length - 2 + i] = crc[i];
|
|||
|
|
|
|||
|
|
return sendModbusDatas;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Modbus TCP Read - Error Response Data
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="readByte">전송받은 전체 byte array</param>
|
|||
|
|
/// <param name="errorCheck">에러값(0x01~0x04)</param>
|
|||
|
|
/// <returns></returns>
|
|||
|
|
public byte[] MakeTCPErrorResponseData(byte[] readByte, byte errorCheck)
|
|||
|
|
{
|
|||
|
|
byte[] sendModbusDatas;
|
|||
|
|
|
|||
|
|
sendModbusDatas = new byte[9];
|
|||
|
|
|
|||
|
|
// 0~3 : 고정값
|
|||
|
|
sendModbusDatas[0] = readByte[0];
|
|||
|
|
sendModbusDatas[1] = readByte[1];
|
|||
|
|
sendModbusDatas[2] = 0x00;
|
|||
|
|
sendModbusDatas[3] = 0x00;
|
|||
|
|
|
|||
|
|
// Unit ID~끝까지의 byte 수
|
|||
|
|
sendModbusDatas[4] = 0x00;
|
|||
|
|
sendModbusDatas[5] = 0x03;
|
|||
|
|
|
|||
|
|
// Unit ID : Tcp에서는 0x01 고정값
|
|||
|
|
sendModbusDatas[6] = 0x01;
|
|||
|
|
// Function Code : 0x04 + 0x80 = 0x84 : 고정값
|
|||
|
|
sendModbusDatas[7] = 0x84;
|
|||
|
|
|
|||
|
|
sendModbusDatas[8] = errorCheck;
|
|||
|
|
|
|||
|
|
return sendModbusDatas;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Modbus TCP Read - Normal Response Data
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="readByte">전송받은 전체 byte array</param>
|
|||
|
|
/// <param name="madeData">전송할 Data byte array</param>
|
|||
|
|
/// <returns></returns>
|
|||
|
|
public byte[] MakeTCPResponseData(byte[] readByte, byte[] madeData)
|
|||
|
|
{
|
|||
|
|
byte[] totalLength;
|
|||
|
|
byte[] sendModbusDatas;
|
|||
|
|
byte[] madeDatas;
|
|||
|
|
ushort dataLength = (ushort)madeData.Length;
|
|||
|
|
|
|||
|
|
sendModbusDatas = new byte[9 + dataLength];
|
|||
|
|
|
|||
|
|
// 0~3 : 고정값
|
|||
|
|
sendModbusDatas[0] = readByte[0];
|
|||
|
|
sendModbusDatas[1] = readByte[1];
|
|||
|
|
sendModbusDatas[2] = 0x00;
|
|||
|
|
sendModbusDatas[3] = 0x00;
|
|||
|
|
|
|||
|
|
// BitConverter.GetBytes 사용 시, totalLength는 4 bytes, 끝 두 byte만 사용함.
|
|||
|
|
totalLength = BitConverter.GetBytes(dataLength + 3).Reverse().ToArray();
|
|||
|
|
|
|||
|
|
// Unit ID~끝까지의 byte 수
|
|||
|
|
sendModbusDatas[4] = totalLength[2];
|
|||
|
|
sendModbusDatas[5] = totalLength[3];
|
|||
|
|
|
|||
|
|
// Unit ID : Tcp에서는 0x01 고정값
|
|||
|
|
sendModbusDatas[6] = 0x01;
|
|||
|
|
//Function code : Read Input Register 0x04 고정값
|
|||
|
|
sendModbusDatas[7] = 0x04;
|
|||
|
|
|
|||
|
|
// Byte Count(Data의 개수)
|
|||
|
|
sendModbusDatas[8] = Convert.ToByte(dataLength);
|
|||
|
|
|
|||
|
|
madeDatas = new byte[dataLength];
|
|||
|
|
madeDatas = madeData;
|
|||
|
|
|
|||
|
|
for (int i = 0; i < dataLength; i++)
|
|||
|
|
sendModbusDatas[9 + i] = madeDatas[i];
|
|||
|
|
|
|||
|
|
return sendModbusDatas;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Modbus TCP Write Data(판정 시 Send)
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="madeData">전송할 전체 byte array</param>
|
|||
|
|
/// <param name="startAddress">Start Address</param>
|
|||
|
|
/// <returns></returns>
|
|||
|
|
public byte[] MakeTCPSendAllData(byte[] madeData, int startAddress)
|
|||
|
|
{
|
|||
|
|
//byte[] readByte;
|
|||
|
|
byte[] sendModbusDatas;
|
|||
|
|
byte[] transactionID;
|
|||
|
|
|
|||
|
|
if (this.ModbusTransactionID > 65535)
|
|||
|
|
this.ModbusTransactionID = 0;
|
|||
|
|
else
|
|||
|
|
this.ModbusTransactionID++;
|
|||
|
|
|
|||
|
|
// BitConverter.GetBytes 사용 시, totalLength는 4 bytes, 끝 두 byte만 사용함.
|
|||
|
|
transactionID = BitConverter.GetBytes(this.ModbusTransactionID).Reverse().ToArray();
|
|||
|
|
|
|||
|
|
sendModbusDatas = new byte[13 + madeData.Length];
|
|||
|
|
|
|||
|
|
sendModbusDatas[0] = transactionID[2];
|
|||
|
|
sendModbusDatas[1] = transactionID[3];
|
|||
|
|
sendModbusDatas[2] = 0x00;
|
|||
|
|
sendModbusDatas[3] = 0x00;
|
|||
|
|
|
|||
|
|
// Length(Unit ID~ 길이)
|
|||
|
|
sendModbusDatas[4] = 0x00;
|
|||
|
|
sendModbusDatas[5] = 0x4b;
|
|||
|
|
// Unit ID
|
|||
|
|
sendModbusDatas[6] = 0x01;
|
|||
|
|
// Function code
|
|||
|
|
sendModbusDatas[7] = 0x10;
|
|||
|
|
|
|||
|
|
// Start Address
|
|||
|
|
sendModbusDatas[8] = 0x00;
|
|||
|
|
sendModbusDatas[9] = Convert.ToByte(startAddress);
|
|||
|
|
|
|||
|
|
//Length(Word 단위)
|
|||
|
|
sendModbusDatas[10] = 0x00;
|
|||
|
|
sendModbusDatas[11] = 0x22;
|
|||
|
|
|
|||
|
|
// Byte Count(Data의 byte 개수)
|
|||
|
|
sendModbusDatas[12] = 0x44;
|
|||
|
|
|
|||
|
|
for (int i = 0; i < madeData.Length; i++)
|
|||
|
|
sendModbusDatas[13 + i] = madeData[i];
|
|||
|
|
|
|||
|
|
return sendModbusDatas;
|
|||
|
|
}
|
|||
|
|
#endregion
|
|||
|
|
}
|
|||
|
|
}
|