using System;
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using System.Linq;
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using System.Text;
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using HH.WCS.Mobox3.RiDong.process;
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namespace HH.WCS.Mobox3.RiDong.device;
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internal class PlcHelper
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{
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internal static void Receive(string ip, string msg)
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{
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//处理设备信号
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DeviceProcess.Analysis(msg, ip);
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}
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internal static bool SendHex(string ip, string msg)
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{
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return TcpServer.TcpServerSend(ip, Hex2Bytes(msg));
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}
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internal static void SendAscii(string ip, string msg)
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{
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TcpServer.TcpServerSend(ip, Encoding.ASCII.GetBytes(msg));
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}
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internal static byte[] Hex2Bytes(string hexString)
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{
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hexString = hexString.Replace(" ", "");
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if ((hexString.Length % 2) != 0)
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hexString += " ";
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byte[] returnBytes = new byte[hexString.Length / 2];
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for (int i = 0; i < returnBytes.Length; i++)
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{
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returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
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}
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return returnBytes;
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}
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internal static string Hex2Ascii(string hexString)
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{
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hexString = hexString.Replace(" ", "");
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if ((hexString.Length % 2) != 0)
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hexString += " ";
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byte[] returnBytes = new byte[hexString.Length / 2];
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for (int i = 0; i < returnBytes.Length; i++)
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{
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returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
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}
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return Encoding.ASCII.GetString(returnBytes);
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}
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#region 进制转换+CRC
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internal static bool CheckCRC(string hex)
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{
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var result = false;
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var data = hex.Replace(" ", "");
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if (data.Length % 2 == 0)
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{
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var code1 = data.Substring(data.Length - 4, 4).ToLower();
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var code2 = BitConverter.ToString(CRC16LH(Hex2Bytes(data.Substring(0, data.Length - 4)))).Replace("-", "").Replace(" ", "").ToLower();
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result = code1 == code2;
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}
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return result;
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}
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internal static byte[] CRC16LH(byte[] pDataBytes)
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{
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ushort crc = 0xffff;
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ushort polynom = 0xA001;
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for (int i = 0; i < pDataBytes.Length; i++)
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{
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crc ^= pDataBytes[i];
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for (int j = 0; j < 8; j++)
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{
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if ((crc & 0x01) == 0x01)
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{
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crc >>= 1;
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crc ^= polynom;
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}
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else
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{
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crc >>= 1;
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}
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}
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}
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byte[] result = BitConverter.GetBytes(crc);
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return result;
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}
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internal static byte[] CRC16HL(byte[] pDataBytes)
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{
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ushort crc = 0xffff;
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ushort polynom = 0xA001;
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for (int i = 0; i < pDataBytes.Length; i++)
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{
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crc ^= pDataBytes[i];
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for (int j = 0; j < 8; j++)
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{
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if ((crc & 0x01) == 0x01)
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{
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crc >>= 1;
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crc ^= polynom;
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}
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else
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{
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crc >>= 1;
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}
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}
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}
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byte[] result = BitConverter.GetBytes(crc).Reverse().ToArray();
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return result;
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}
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#endregion
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}
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