private Char[] SendData(Char type, int startAdd, Char cmd, char[] inChar) //（S、D、M、X、Y、T、C） （E00/1000/100/80/A0/C0/1C0） （0、1、w/W、r/R）
{
Char[] outChar = null;
//报文长度
int n = 0;
if (cmd == '0' || cmd == '1') // 0、1复位置位
{
n = 9;
}
else if (cmd == 'R' || cmd == 'r') // R/r读单双字
{
n = 11;
}
else if (cmd == 'w' || cmd == 'W') // w写单字
{
n = 11 + inChar.Length;
}
char[] subuffer = new char[n];
//报文首
subuffer[0] = (char)2;
//命令代码
if (cmd == '0')
{
subuffer[1] = (char)0x38;
}
else if (cmd == '1')
{
subuffer[1] = (char)0x37;
}
else if (n == 11)
{
subuffer[1] = (char)0x30;
}
else
{
subuffer[1] = (char)0x31;
}
//首地址
int Addr = 0;
if (type == 'S' || type == 's') // S、s
{
Addr = 0xE00;
}
else if (type == 'D' || type == 'd') // D、d
{
Addr = 0x1000;
}
else if (type == 'M' || type == 'm') // M、m
{
Addr = 0x100;
}
else if (type == 'X' || type == 'x') // X、x
{
Addr = 0x80;
}
else if (type == 'Y' || type == 'y') // Y、y
{
Addr = 0xA0;
}
else if (type == 'T' || type == 't') // T、t
{
Addr = 0xC0;
}
else if (type == 'C' || type == 'c') // C、c
{
Addr = 0x1C0;
}
//计算首地址
Char[] Addrs = new Char[4];
if (n == 9)
{
Addr = Addr * 8 + startAdd;
Addrs = HTC(Addr, 4);
}
else
{
Addr += (startAdd * 2);
Addrs = StartData(Addr);
}
Addrs.CopyTo(subuffer, 2);
//字节长度
if (circle)
{
if (cmd == 'R' || cmd == 'W') // R/W 读写双字
{
subuffer[7] = Tran2(m_sendLen % 0x10);
subuffer[6] = Tran2(m_sendLen / 0x10);
}
else if (cmd == 'r' || cmd == 'w') // r/w 读写单字
{
subuffer[7] = Tran2(m_recieveLen % 0x10);
subuffer[6] = Tran2(m_recieveLen / 0x10);
}
}
else
{
subuffer[6] = (char)0x30;
if (cmd == 'R' || cmd == 'W') // R/W 读写双字
{
subuffer[7] = (char)0x34;
}
else if (cmd == 'r' || cmd == 'w') // r/w 读写单字
{
subuffer[7] = (char)0x32;
}
}
//数据内容
if (cmd == 'w' || cmd == 'W')
{
inChar.CopyTo(subuffer, 8);
}
//报文尾
subuffer[n - 3] = (char)3;
//校验码
Char[] T = new Char[2];
T = CCD(subuffer, n - 3);
T.CopyTo(subuffer, n - 2);
if (m_sp.IsOpen)
{
m_sp.Write(subuffer, 0, n);
//MessageBox.Show("已发送成功!");
for (int i = 0; i < 5; i++)
{
Thread.Sleep(100);
int Len = m_sp.BytesToRead;
if (Len > 0)
{
i = 5; //跳出循环
char[] RecieveBuf = new char[Len];
m_sp.Read(RecieveBuf, 0, Len);
if (Len == 1) //非写入或出错状态
{
outChar = RecieveBuf;
}
else //写入状态，读取返回数据
{
T = CCD(RecieveBuf, Len - 3); //验证接收信息校验码
if (T[0] == RecieveBuf[Len - 2] && T[1] == RecieveBuf[Len - 1])
{
Char[] outChar2 = new Char[Len - 4];
Array.Copy(RecieveBuf, 1, outChar2, 0, Len - 4);
outChar = outChar2;
}
}
}
}
}
return(outChar);
}