public static byte[] WriteAllDO(int addr, int ionum, bool openclose)
{
byte[] src = new byte[10 + (ionum - 1) / 8];
int index = 0;
src[index++] = (byte)addr;
src[index++] = 0x0f;
src[index++] = 0x00;
src[index++] = 0x00;
src[index++] = 0x00;
src[index++] = (byte)ionum;
src[index++] = (byte)((ionum + 7) / 8);
src[index++] = (byte)((openclose) ? 0xff : 0x00);
if (ionum > 8)
{
src[index++] = (byte)((openclose) ? 0xff : 0x00);
}
if (ionum > 16)
{
src[index++] = (byte)((openclose) ? 0xff : 0x00);
}
if (ionum > 24)
{
src[index++] = (byte)((openclose) ? 0xff : 0x00);
}
ushort crc = CMBRTU.CalculateCrc(src, index);
src[index++] = (byte)(crc & 0xff);
src[index++] = (byte)(crc >> 8);
return(src);
}
public static byte[] WriteDO(int addr, int io, bool openclose)
{
byte[] src = new byte[8];
src[0] = (byte)addr;
src[1] = 0x05;
src[2] = 0x00;
src[3] = (byte)io;
src[4] = (byte)((openclose) ? 0xff : 0x00);
src[5] = 0x00;
ushort crc = CMBRTU.CalculateCrc(src, 6);
src[6] = (byte)(crc & 0xff);
src[7] = (byte)(crc >> 8);
return(src);
}
public static byte[] ReadAIInfo(int addr, int regstart, int regnum)
{
byte[] src = new byte[8];
src[0] = (byte)addr;
src[1] = 0x04;
src[2] = (byte)(regstart >> 8);
src[3] = (byte)(regstart & 0xff);
src[4] = (byte)(regnum >> 8);
src[5] = (byte)(regnum & 0xff);
ushort crc = CMBRTU.CalculateCrc(src, 6);
src[6] = (byte)(crc & 0xff);
src[7] = (byte)(crc >> 8);
return(src);
}
public static byte[] ReadDI(int addr, int dinum)
{
byte[] src = new byte[8];
src[0] = (byte)addr;
src[1] = 0x02;
src[2] = 0x00;
src[3] = 0x00;
src[4] = 0x00;
src[5] = (byte)dinum;
ushort crc = CMBRTU.CalculateCrc(src, 6);
src[6] = (byte)(crc & 0xff);
src[7] = (byte)(crc >> 8);
return(src);
}
//分析从继电器收到的信息
private byte[] AnalysisRcv(byte[] src, int len)
{
if (len < 6)
{
return(null);
}
if (src[0] != 254)
{
return(null);
}
switch (src[1])
{
case 0x01:
if (CMBRTU.CalculateCrc(src, src[2] + 5) == 0x00)
{
byte[] dst = new byte[src[2]];
for (int i = 0; i < src[2]; i++)
{
dst[i] = src[3 + i];
}
return(dst);
}
break;
case 0x02:
if (CMBRTU.CalculateCrc(src, src[2] + 5) == 0x00)
{
byte[] dst = new byte[src[2]];
for (int i = 0; i < src[2]; i++)
{
dst[i] = src[3 + i];
}
return(dst);
}
break;
case 0x04:
if (CMBRTU.CalculateCrc(src, src[2] + 5) == 0x00)
{
byte[] dst = new byte[src[2]];
for (int i = 0; i < src[2]; i++)
{
dst[i] = src[3 + i];
}
return(dst);
}
break;
case 0x05:
if (CMBRTU.CalculateCrc(src, 8) == 0x00)
{
byte[] dst = new byte[1];
dst[0] = src[4];
return(dst);
}
break;
case 0x0f:
if (CMBRTU.CalculateCrc(src, 8) == 0x00)
{
byte[] dst = new byte[1];
dst[0] = 1;
return(dst);
}
break;
}
return(null);
}