Ïðèâåòñòâóþ.
Íóæíî ñäåëàòü çàïðîñ ê ÑÊÑ-3 ïî ïðîòîêîëó M-Bus. Îïûòà ðàáîòû ñ ïðîòîêîëàìè íå áûëî, äà è ïðèìåðîâ íàéòè íå ìîãó. Åñòü ñòàíäàðòíûé ìàíóàë, ýò êîíå÷íî õîðîøî. Íî íóæåí ëþáîé ïðèìåð çàïðîñà, ïðîñòî ïîêàæèòå êàê ýòî äåëàòü.
Çàðàíåå ñïàñèáî
Ïîëíàÿ âåðñèÿ ýòîé ñòðàíèöû: Îïðîñ com ïîðòà
Ôîðóì ðàçðàáîò÷èêîâ ýëåêòðîíèêè ELECTRONIX.ru > Ñàéò è ôîðóì >  ïîìîùü íà÷èíàþùåìó > Ïðîãðàììèðîâàíèå
M-Bus ýòî Modbus?
Åñëè äà, òî íóæíî ñìîòðåòü â "ñíàíäàðòíîì ìàíóàëå" îïèñàíèå ðãèñòðîâ/âõîäîâ/âûõîäîâ ýòîãî ñàìîãî ÑÊÑ-3, è ñäåëàòü ñîîòâåòñâóþùèé çàïðîñ. Çäåñü íà ôîðóìå ôîðìàò çàïðîñà ïî Modbus ãäå-òî áûë ïîêàçàí, åñëè íå îøèáàþñü.
Åñëè äà, òî íóæíî ñìîòðåòü â "ñíàíäàðòíîì ìàíóàëå" îïèñàíèå ðãèñòðîâ/âõîäîâ/âûõîäîâ ýòîãî ñàìîãî ÑÊÑ-3, è ñäåëàòü ñîîòâåòñâóþùèé çàïðîñ. Çäåñü íà ôîðóìå ôîðìàò çàïðîñà ïî Modbus ãäå-òî áûë ïîêàçàí, åñëè íå îøèáàþñü.
Ïðèâåò! Åñòü äâà êîìïà, ñîåäèíåíû íóëü ìîäåìíûì êàáåëåì ÷åðåç êîìïîðò. Ñ îäíîãî ïîñûëàþòñÿ ñèìâîëû ñ Òåðàòåðìà. Êàê ñ ïîìîùüþ Ñè ðåàëèçîâàòü ëîâëþ ýòèõ ñèìâîëîâ íà äðóãîì êîìïå? Çàðàíåå ñïàñèáî
Ïîçíàòü õîòÿ áû C++Builder èëè Visual Studio
Öèòàòà(FxMODE @ Nov 13 2008, 08:38) 
Ïðèâåòñòâóþ.
Íóæíî ñäåëàòü çàïðîñ ê ÑÊÑ-3 ïî ïðîòîêîëó M-Bus. Îïûòà ðàáîòû ñ ïðîòîêîëàìè íå áûëî, äà è ïðèìåðîâ íàéòè íå ìîãó. Åñòü ñòàíäàðòíûé ìàíóàë, ýò êîíå÷íî õîðîøî. Íî íóæåí ëþáîé ïðèìåð çàïðîñà, ïðîñòî ïîêàæèòå êàê ýòî äåëàòü.
Çàðàíåå ñïàñèáî
Íóæíî ñäåëàòü çàïðîñ ê ÑÊÑ-3 ïî ïðîòîêîëó M-Bus. Îïûòà ðàáîòû ñ ïðîòîêîëàìè íå áûëî, äà è ïðèìåðîâ íàéòè íå ìîãó. Åñòü ñòàíäàðòíûé ìàíóàë, ýò êîíå÷íî õîðîøî. Íî íóæåí ëþáîé ïðèìåð çàïðîñà, ïðîñòî ïîêàæèòå êàê ýòî äåëàòü.
Çàðàíåå ñïàñèáî
Ïðèìåð modbus, ïî êðàéíåé ìåðå ó íàñ ðåàëèçîâàí áûë òàê:
CODE
uchar ReadRegs(uchar RegAddr, uint* Data, uchar WaitTime)
{
uchar LRC;
uchar SlaveAddr;
uint RegCount;
uchar OutCount;
uchar ErrCount=0;
Repeat:
SlaveAddr = 2;
RegCount = 1;
OutCount = 0;
FrameBuffer[0]=':';
/* ïîëå àäðåñà âåäîìîãî */
FrameBuffer[1]=NumToChar(SlaveAddr>>4);
FrameBuffer[2]=NumToChar(SlaveAddr&0x0F);
/* ïîëå ôèíêöèè */
FrameBuffer[3]=NumToChar(READ_REGS>>4);
FrameBuffer[4]=NumToChar(READ_REGS&0x0F);
/* ïîëå àäðåñà ðåãèñòðà */
FrameBuffer[7]=NumToChar((RegAddr&0x00F0)>>4);
FrameBuffer[8]=NumToChar(RegAddr&0x0F);
RegAddr>>=8;
FrameBuffer[5]=NumToChar((RegAddr&0x00F0)>>4);
FrameBuffer[6]=NumToChar(RegAddr&0x0F);
/* êîëè÷åñòâî ðåãèñòðîâ */
FrameBuffer[11]=NumToChar((RegCount&0x00F0)>>4);
FrameBuffer[12]=NumToChar(RegCount&0x0F);
RegCount>>=8;
FrameBuffer[9]=NumToChar((RegCount&0x00F0)>>4);
FrameBuffer[10]=NumToChar(RegCount&0x0F);
/* êîíòðîëüíàÿ ñóììà LRC */
LRC = Calc_LRC((uchar*)&FrameBuffer[1], 12);
FrameBuffer[13]=NumToChar((LRC&0xF0)>>4);
FrameBuffer[14]=NumToChar(LRC&0x0F);
/* ïðèçíàê êîíöà ïàêåòà */
FrameBuffer[15]='\r';
FrameBuffer[16]='\n';
FrameBuffer[17]='\0';
// îòïðàâëÿåì ãîòîâûé ïàêåò
do
{
while(UCSRA_UDRE == false);
UDR = FrameBuffer[OutCount++];
}
while(FrameBuffer[OutCount] != '\0');
// æä¸ì îòâåòà
SetTimeOut(WaitTime);
PackedReady = false;
FrameLen = 0;
while(PackedReady==false && TimeOut>0);
if(TimeOut == 0)
{
if( ++ErrCount == 4 )
{
return TIME_OUT_ERR;
}
else goto Repeat;
}
RemoveTimeOut();
FrameLen -= 4;
LRC = CharToNum(FrameBuffer[FrameLen]); // äåêîäèðóåì LRC ASCII -> ÷èñëî
LRC <<= 4;
LRC |= CharToNum(FrameBuffer[FrameLen+1]);
if(LRC == Calc_LRC((uchar*)&FrameBuffer[1], FrameLen-1)) // ïðîâåðÿåì LRC
{
// çàáèðàåì ñîäåðæèìîå ðåãèñòðà
*Data = StrToInt((uchar*)&FrameBuffer[RESPOND_FIELD_DATA], WORD);
return NORMAL;
}
else
{
if( ++ErrCount == 4 )
{
return CRC_ERR;
}
else goto Repeat;
}
}
//--------------------------------------------------------------------------------
uchar WriteRegs(uchar RegAddr, uint Data, uchar WaitTime)
{
uchar LRC;
uchar SlaveAddr;
uint RegCount;
uchar OutCount;
uchar ByteCount;
uchar ErrCount = 0;
Repeat:
SlaveAddr = 2;
RegCount = 1;
OutCount=0;
ByteCount=2;
FrameBuffer[0]=':';
/* ïîëå àäðåñà âåäîìîãî */
FrameBuffer[1]=NumToChar(SlaveAddr>>4);
FrameBuffer[2]=NumToChar(SlaveAddr&0x0F);
/* ïîëå ôèíêöèè */
FrameBuffer[3]=NumToChar(WRITE_REGS>>4);
FrameBuffer[4]=NumToChar(WRITE_REGS&0x0F);
/* ïîëå àäðåñà ðåãèñòðà */
FrameBuffer[7]=NumToChar((RegAddr&0x00F0)>>4);
FrameBuffer[8]=NumToChar(RegAddr&0x0F);
RegAddr>>=8;
FrameBuffer[5]=NumToChar((RegAddr&0x00F0)>>4);
FrameBuffer[6]=NumToChar(RegAddr&0x0F);
/* êîëè÷åñòâî ðåãèñòðîâ */
FrameBuffer[11]=NumToChar((RegCount&0x00F0)>>4);
FrameBuffer[12]=NumToChar(RegCount&0x0F);
RegCount>>=8;
FrameBuffer[9]=NumToChar((RegCount&0x00F0)>>4);
FrameBuffer[10]=NumToChar(RegCount&0x0F);
/* êîëè÷åñòâî áàéò */
FrameBuffer[13]=NumToChar((ByteCount&0x00F0)>>4);
FrameBuffer[14]=NumToChar(ByteCount&0x0F);
/* äàííûå ðåãèñòðà */
FrameBuffer[17]=NumToChar((Data&0xF0)>>4);;
FrameBuffer[18]=NumToChar(Data&0x0F);
Data >>= 8;
FrameBuffer[15]=NumToChar((Data&0xF0)>>4);
FrameBuffer[16]=NumToChar(Data&0x0F);
/* êîíòðîëüíàÿ ñóììà LRC */
LRC = Calc_LRC((uchar*)&FrameBuffer[1], 18);
FrameBuffer[19]=NumToChar((LRC&0xF0)>>4);
FrameBuffer[20]=NumToChar(LRC&0x0F);
/* ïðèçíàê êîíöà ïàêåòà */
FrameBuffer[21]='\r';
FrameBuffer[22]='\n';
FrameBuffer[23]='\0';
// îòïðàâëÿåì ãîòîâûé ïàêåò
do
{
while(UCSRA_UDRE == false);
UDR = FrameBuffer[OutCount++];
}
while(FrameBuffer[OutCount] != '\0');
// æä¸ì îòâåòà
SetTimeOut(WaitTime);
PackedReady = false;
FrameLen = 0;
while(PackedReady == false && TimeOut>0);
if(TimeOut == 0)
{
if( ++ErrCount == 4 )
{
return TIME_OUT_ERR;
}
else goto Repeat;
}
RemoveTimeOut();
FrameLen -= 4;
LRC = CharToNum(FrameBuffer[FrameLen]); // äåêîäèðóåì LRC ASCII -> ÷èñëî
LRC <<= 4;
LRC |= CharToNum(FrameBuffer[FrameLen+1]);
if(LRC == Calc_LRC((uchar*)&FrameBuffer[1], FrameLen-1)) // ïðîâåðÿåì LRC
{
return NORMAL;
}
else
{
if( ++ErrCount == 4 )
{
return CRC_ERR;
}
else goto Repeat;
}
}
uchar Calc_LRC(uchar *Msg, uchar DataLen)
{
unsigned char uchLRC=0; /* Èíèöèàëèçàöèÿ LRC */
unsigned char Byte;
DataLen>>=1;
while(DataLen--)
{
Byte=CharToNum(*Msg++);
Byte<<=4;
Byte|=CharToNum(*Msg++);
uchLRC+=Byte;
}
uchLRC=(0xFF-uchLRC); //ïåðâîå äîïîëíåíèå
uchLRC++; // âòîðîå äîïîëíåíèå
return (uchLRC);
}
{
uchar LRC;
uchar SlaveAddr;
uint RegCount;
uchar OutCount;
uchar ErrCount=0;
Repeat:
SlaveAddr = 2;
RegCount = 1;
OutCount = 0;
FrameBuffer[0]=':';
/* ïîëå àäðåñà âåäîìîãî */
FrameBuffer[1]=NumToChar(SlaveAddr>>4);
FrameBuffer[2]=NumToChar(SlaveAddr&0x0F);
/* ïîëå ôèíêöèè */
FrameBuffer[3]=NumToChar(READ_REGS>>4);
FrameBuffer[4]=NumToChar(READ_REGS&0x0F);
/* ïîëå àäðåñà ðåãèñòðà */
FrameBuffer[7]=NumToChar((RegAddr&0x00F0)>>4);
FrameBuffer[8]=NumToChar(RegAddr&0x0F);
RegAddr>>=8;
FrameBuffer[5]=NumToChar((RegAddr&0x00F0)>>4);
FrameBuffer[6]=NumToChar(RegAddr&0x0F);
/* êîëè÷åñòâî ðåãèñòðîâ */
FrameBuffer[11]=NumToChar((RegCount&0x00F0)>>4);
FrameBuffer[12]=NumToChar(RegCount&0x0F);
RegCount>>=8;
FrameBuffer[9]=NumToChar((RegCount&0x00F0)>>4);
FrameBuffer[10]=NumToChar(RegCount&0x0F);
/* êîíòðîëüíàÿ ñóììà LRC */
LRC = Calc_LRC((uchar*)&FrameBuffer[1], 12);
FrameBuffer[13]=NumToChar((LRC&0xF0)>>4);
FrameBuffer[14]=NumToChar(LRC&0x0F);
/* ïðèçíàê êîíöà ïàêåòà */
FrameBuffer[15]='\r';
FrameBuffer[16]='\n';
FrameBuffer[17]='\0';
// îòïðàâëÿåì ãîòîâûé ïàêåò
do
{
while(UCSRA_UDRE == false);
UDR = FrameBuffer[OutCount++];
}
while(FrameBuffer[OutCount] != '\0');
// æä¸ì îòâåòà
SetTimeOut(WaitTime);
PackedReady = false;
FrameLen = 0;
while(PackedReady==false && TimeOut>0);
if(TimeOut == 0)
{
if( ++ErrCount == 4 )
{
return TIME_OUT_ERR;
}
else goto Repeat;
}
RemoveTimeOut();
FrameLen -= 4;
LRC = CharToNum(FrameBuffer[FrameLen]); // äåêîäèðóåì LRC ASCII -> ÷èñëî
LRC <<= 4;
LRC |= CharToNum(FrameBuffer[FrameLen+1]);
if(LRC == Calc_LRC((uchar*)&FrameBuffer[1], FrameLen-1)) // ïðîâåðÿåì LRC
{
// çàáèðàåì ñîäåðæèìîå ðåãèñòðà
*Data = StrToInt((uchar*)&FrameBuffer[RESPOND_FIELD_DATA], WORD);
return NORMAL;
}
else
{
if( ++ErrCount == 4 )
{
return CRC_ERR;
}
else goto Repeat;
}
}
//--------------------------------------------------------------------------------
uchar WriteRegs(uchar RegAddr, uint Data, uchar WaitTime)
{
uchar LRC;
uchar SlaveAddr;
uint RegCount;
uchar OutCount;
uchar ByteCount;
uchar ErrCount = 0;
Repeat:
SlaveAddr = 2;
RegCount = 1;
OutCount=0;
ByteCount=2;
FrameBuffer[0]=':';
/* ïîëå àäðåñà âåäîìîãî */
FrameBuffer[1]=NumToChar(SlaveAddr>>4);
FrameBuffer[2]=NumToChar(SlaveAddr&0x0F);
/* ïîëå ôèíêöèè */
FrameBuffer[3]=NumToChar(WRITE_REGS>>4);
FrameBuffer[4]=NumToChar(WRITE_REGS&0x0F);
/* ïîëå àäðåñà ðåãèñòðà */
FrameBuffer[7]=NumToChar((RegAddr&0x00F0)>>4);
FrameBuffer[8]=NumToChar(RegAddr&0x0F);
RegAddr>>=8;
FrameBuffer[5]=NumToChar((RegAddr&0x00F0)>>4);
FrameBuffer[6]=NumToChar(RegAddr&0x0F);
/* êîëè÷åñòâî ðåãèñòðîâ */
FrameBuffer[11]=NumToChar((RegCount&0x00F0)>>4);
FrameBuffer[12]=NumToChar(RegCount&0x0F);
RegCount>>=8;
FrameBuffer[9]=NumToChar((RegCount&0x00F0)>>4);
FrameBuffer[10]=NumToChar(RegCount&0x0F);
/* êîëè÷åñòâî áàéò */
FrameBuffer[13]=NumToChar((ByteCount&0x00F0)>>4);
FrameBuffer[14]=NumToChar(ByteCount&0x0F);
/* äàííûå ðåãèñòðà */
FrameBuffer[17]=NumToChar((Data&0xF0)>>4);;
FrameBuffer[18]=NumToChar(Data&0x0F);
Data >>= 8;
FrameBuffer[15]=NumToChar((Data&0xF0)>>4);
FrameBuffer[16]=NumToChar(Data&0x0F);
/* êîíòðîëüíàÿ ñóììà LRC */
LRC = Calc_LRC((uchar*)&FrameBuffer[1], 18);
FrameBuffer[19]=NumToChar((LRC&0xF0)>>4);
FrameBuffer[20]=NumToChar(LRC&0x0F);
/* ïðèçíàê êîíöà ïàêåòà */
FrameBuffer[21]='\r';
FrameBuffer[22]='\n';
FrameBuffer[23]='\0';
// îòïðàâëÿåì ãîòîâûé ïàêåò
do
{
while(UCSRA_UDRE == false);
UDR = FrameBuffer[OutCount++];
}
while(FrameBuffer[OutCount] != '\0');
// æä¸ì îòâåòà
SetTimeOut(WaitTime);
PackedReady = false;
FrameLen = 0;
while(PackedReady == false && TimeOut>0);
if(TimeOut == 0)
{
if( ++ErrCount == 4 )
{
return TIME_OUT_ERR;
}
else goto Repeat;
}
RemoveTimeOut();
FrameLen -= 4;
LRC = CharToNum(FrameBuffer[FrameLen]); // äåêîäèðóåì LRC ASCII -> ÷èñëî
LRC <<= 4;
LRC |= CharToNum(FrameBuffer[FrameLen+1]);
if(LRC == Calc_LRC((uchar*)&FrameBuffer[1], FrameLen-1)) // ïðîâåðÿåì LRC
{
return NORMAL;
}
else
{
if( ++ErrCount == 4 )
{
return CRC_ERR;
}
else goto Repeat;
}
}
uchar Calc_LRC(uchar *Msg, uchar DataLen)
{
unsigned char uchLRC=0; /* Èíèöèàëèçàöèÿ LRC */
unsigned char Byte;
DataLen>>=1;
while(DataLen--)
{
Byte=CharToNum(*Msg++);
Byte<<=4;
Byte|=CharToNum(*Msg++);
uchLRC+=Byte;
}
uchLRC=(0xFF-uchLRC); //ïåðâîå äîïîëíåíèå
uchLRC++; // âòîðîå äîïîëíåíèå
return (uchLRC);
}
Ïîä Ñè íå íàøåë åù¸ åñòü âîò ýòî (ïîä Delphi)
Öèòàòà(birden @ Nov 13 2008, 12:44)
M-Bus ýòî Modbus?
Íåò ñîâñåì äðóãîå.Öèòàòà(Tcom @ Feb 11 2009, 00:05)
Ïîçíàòü õîòÿ áû C++Builder èëè Visual Studio
Ýòî ñîâñåì íå îáÿçàòåëüíî è äàæå ì.á. ëèøíèì. Åñëè ïðîãðàììèðóåòå ïîä windows, òî è èçó÷àéòå åãî API â ÷àñòè êîììóíèêàöèé.Òàì îáðàòèòå âíèìàíèå íà ñëåäóþùèå ôóíêöèè:
Êîä
Handle = CreateFile( GetLongName(PortNumber), // Èìÿ ïîðòà.
GENERIC_READ | GENERIC_WRITE, // Ðåñóðñ äëÿ ÷òåíèÿ è çàïèñè.
0, // óñòðîéñòâî ñâÿçè äîëæíî áûòü îòêðûòî äëÿ ìîíîïîëüíîãî äîñòóïà.
NULL, // Íåò àòðèáóòîâ çàùèòû.
OPEN_EXISTING, // Âåðíóòü îøèáêó åñëè ðåñóðñ íå ñóùåñòâóåò.
0, // Íåò ïåðåêðûòûé ñ I/O.
NULL ); // Äëÿ êîììóíèêàöèîííûõ óñòðîéñòâ ïàðàìåòð hTemplate ä.á. NULL.
result = ReadFile( // BOOL WriteFile(
Handle, // HANDLE hFile,
pValue, // PCVOID lpBuffer,
sizeof(*pValue), // DWORD nNumberOfBytesToWrite,
&NumberOfReaded, // PDWORD lpNumberOfBytesWritten,
NULL ); // POVERLAPPED lpOverlapped);
result = WriteFile( // BOOL WriteFile(
Handle, // HANDLE hFile,
&value, // PCVOID lpBuffer,
sizeof(value), // DWORD nNumberOfBytesToWrite,
&NumberOfWritten, // PDWORD lpNumberOfBytesWritten,
NULL ); // POVERLAPPED lpOverlapped);
GENERIC_READ | GENERIC_WRITE, // Ðåñóðñ äëÿ ÷òåíèÿ è çàïèñè.
0, // óñòðîéñòâî ñâÿçè äîëæíî áûòü îòêðûòî äëÿ ìîíîïîëüíîãî äîñòóïà.
NULL, // Íåò àòðèáóòîâ çàùèòû.
OPEN_EXISTING, // Âåðíóòü îøèáêó åñëè ðåñóðñ íå ñóùåñòâóåò.
0, // Íåò ïåðåêðûòûé ñ I/O.
NULL ); // Äëÿ êîììóíèêàöèîííûõ óñòðîéñòâ ïàðàìåòð hTemplate ä.á. NULL.
result = ReadFile( // BOOL WriteFile(
Handle, // HANDLE hFile,
pValue, // PCVOID lpBuffer,
sizeof(*pValue), // DWORD nNumberOfBytesToWrite,
&NumberOfReaded, // PDWORD lpNumberOfBytesWritten,
NULL ); // POVERLAPPED lpOverlapped);
result = WriteFile( // BOOL WriteFile(
Handle, // HANDLE hFile,
&value, // PCVOID lpBuffer,
sizeof(value), // DWORD nNumberOfBytesToWrite,
&NumberOfWritten, // PDWORD lpNumberOfBytesWritten,
NULL ); // POVERLAPPED lpOverlapped);
Äëÿ ïðîñìîòðà ïîëíîé âåðñèè ýòîé ñòðàíèöû, ïîæàëóéñòà, ïðîéäèòå ïî ññûëêå.