Панель СП307 + ТМ5103 или ТМ5122

[EFrol]

Напишите! Куда Вы денетесь?! Вот пример реализации ОВЕН-протокола для СП3хх:
В глобальный макрос:

BYTE in[64], out[16];
WORD inLen;
BYTE Regs[16];

void query(BYTE *out, WORD outLen){
    inLen = 0;
    Enter(DOWNLOAD);
	if(Send(DOWNLOAD, out, outLen)){
        inLen = Receive(DOWNLOAD, in, 64, 500, 10);
    }
    Leave(DOWNLOAD);
}

WORD Owen_CRC(BYTE *buf, BYTE len){
	BYTE iByte, iBit, bByte;
    WORD ret = 0;
    
    for(iByte = 0; iByte < len; iByte++){
		bByte = buf[iByte];
        for(iBit = 0; iBit < 8; iBit++){
			if(((HIBYTE(ret) ^ bByte) & 0x80) > 0){
				ret <<= 1; ret ^= 0x8F57;
            }else ret <<= 1;
			bByte <<= 1;
        }
    }
    return ret; 
}

BYTE Owen_Query(WORD Addr, WORD Hash, BYTE Count){
	BYTE UnPack[22], Pack[46], iByte;
    WORD CRC;
    
    UnPack[0] = HIBYTE(Addr << 5);
    UnPack[1] = LOBYTE(Addr << 5) | (Count > 0 ? 0x00 : 0x10) | Count;
    UnPack[2] = HIBYTE(Hash);
    UnPack[3] = LOBYTE(Hash);
	for(iByte = 0; iByte < Count; iByte++) UnPack[iByte+4] = out[iByte];
    CRC = Owen_CRC(UnPack, Count + 4);
	UnPack[Count+4] = HIBYTE(CRC);
    UnPack[Count+5] = LOBYTE(CRC);
    
    Pack[0] = '#';
    for(iByte = 0; iByte < (Count + 6); iByte++){
		Pack[iByte*2+1] = ((UnPack[iByte] & 0xF0) >> 4) + 0x47;
        Pack[iByte*2+2] = (UnPack[iByte] & 0x0F) + 0x47;
    }
    Pack[iByte*2+1] = 0x0D;
    
    query(Pack, iByte*2+2);
    
    if(inLen > 6){
		if(in[0] != 0x23 || in[inLen-1] != 0x0D || (inLen % 2) != 0) return -2;

        for(iByte = 0; iByte < (inLen - 2) / 2; iByte++){
            UnPack[iByte] = in[iByte*2+1] - 0x47;
            UnPack[iByte] <<= 4;
            UnPack[iByte] |= in[iByte*2+2] - 0x47;
        }

		CRC = UnPack[iByte-2] << 8 | UnPack[iByte-1];
        if(Owen_CRC(UnPack, iByte-2) != CRC) return -3;

		if(UnPack[0] != HIBYTE(Addr << 5) | (UnPack[1] & 0xE0) != LOBYTE(Addr << 5)) return -4;
        if((UnPack[1] & 0x10) == (Count == 0 ? 0x10: 0x00)) return -5;
        if(UnPack[2] == 0x02 && UnPack[3] == 0x33) return UnPack[4];

		inLen = iByte - 6;
        for(iByte = 0; iByte < inLen; iByte++) in[iByte] = UnPack[iByte+4];
        return 0;
    }else return -1;
}

float readF24(){
    DWORD dw = MAKEDWORD(MAKEWORD(0, in[2]), MAKEWORD(in[1], in[0]));
    return DWord_2_Float(dw);
}

float readFloat(){
	DWORD dw = MAKEDWORD(MAKEWORD(in[3], in[2]), MAKEWORD(in[1], in[0]));
    return DWord_2_Float(dw);
}

void writeFloatPSW(WORD addr, float value){
	DWORD dw;
    dw = Float_2_DWord(value);
    PSW[addr] = LOWORD(dw);
    PSW[addr+1] = HIWORD(dw);
}

в обычный:

if(Owen_Query(120, 0x8784, 0) == 0) writeFloatPSW(450, readF24());

Тщательно изучите и напишите свой!!!