protected byte[] GetWriteCommand(OmronFinsData arg, byte[] value, bool isBit)
{
byte[] command = new byte[26 + 8 + value.Length];
Array.Copy(BasicCommand, 0, command, 0, 4);
byte[] tmp = BitConverter.GetBytes(command.Length - 8);
Array.Reverse(tmp);
tmp.CopyTo(command, 4);
command[11] = 0x02;
command[16] = 0x80; //ICF 信息控制字段
command[17] = 0x00; //RSV 保留字段
command[18] = 0x02; //GCT 网关计数
command[19] = 0x00; //DNA 目标网络地址 00:表示本地网络 0x01~0x7F:表示远程网络
command[20] = 0x13; //DA1 目标节点编号 0x01~0x3E:SYSMAC LINK网络中的节点号 0x01~0x7E:YSMAC NET网络中的节点号 0xFF:广播传输
command[21] = UnitAddress; //DA2 目标单元地址
command[22] = 0x00; //SNA 源网络地址 取值及含义同DNA字段
command[23] = 0x0B; //SA1 源节点编号 取值及含义同DA1字段
command[24] = 0x00; //SA2 源单元地址 取值及含义同DA2字段
command[25] = 0x00; //SID Service ID 取值0x00~0xFF，产生会话的进程的唯一标识
command[26] = 0x01;
command[27] = 0x02; //Command Code 内存区域写入
command[28] = isBit ? arg.OmronFinsType.BitCode : arg.OmronFinsType.WordCode;
arg.Content.CopyTo(command, 29);
command[32] = isBit ? (byte)(value.Length / 256) : (byte)(value.Length / 2 / 256);
command[33] = isBit ? (byte)(value.Length % 256) : (byte)(value.Length / 2 % 256);
value.CopyTo(command, 34);
return(command);
}
private OmronFinsData ConvertArg(string address, bool isBit)
{
address = address.ToUpper();
var data = new OmronFinsData();
switch (address[0])
{
case 'D':
{
data.OmronFinsType = OmronFinsType.DM;
break;
}
case 'C':
{
data.OmronFinsType = OmronFinsType.CIO;
break;
}
case 'W':
{
data.OmronFinsType = OmronFinsType.WR;
break;
}
case 'H':
{
data.OmronFinsType = OmronFinsType.HR;
break;
}
case 'A':
{
data.OmronFinsType = OmronFinsType.AR;
break;
}
case 'E':
{
//TODO
break;
}
default: throw new Exception("Address解析异常");
}
if (address[0] == 'E')
{
//TODO
}
else
{
if (isBit)
{
// 位操作
string[] splits = address.Substring(1).Split(new char[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
ushort addr = ushort.Parse(splits[0]);
data.Content = new byte[3];
data.Content[0] = BitConverter.GetBytes(addr)[1];
data.Content[1] = BitConverter.GetBytes(addr)[0];
if (splits.Length > 1)
{
data.Content[2] = byte.Parse(splits[1]);
if (data.Content[2] > 15)
{
//输入的位地址只能在0-15之间
throw new Exception("位地址数据异常");
}
}
}
else
{
// 字操作
ushort addr = ushort.Parse(address.Substring(1));
data.Content = new byte[3];
data.Content[0] = BitConverter.GetBytes(addr)[1];
data.Content[1] = BitConverter.GetBytes(addr)[0];
}
}
return(data);
}
