// ProtocolPMC916.h: interface for the CProtocolModbus class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_PROTOCOLPMC916_H_INCLUDED_)
#define AFX_PROTOCOLPMC916_H_INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#define DEBUG_PROTOCOL 1

#include "Protocol.h"

class CProtocolModbus : public CProtocol  
{
public:
	UINT GetCRC(BYTE *pBuf, int len);
	virtual BOOL InitParam(PPORTPARAM pPortParam, CCommAsyn *pComm);
	virtual  int WorkMain(SETBASEPARAM SetBasePara, int nDataLen, char chMsg[80]);
	virtual  int WriteCommand(SETBASEPARAM SetBasePara, double dbData, int nDataLen);
	CProtocolModbus();
	virtual ~CProtocolModbus();
protected:
	HANDLE m_hSemComm;
	CRITICAL_SECTION m_csReadFinished;
	CRITICAL_SECTION m_csWrFinished;
protected:
	virtual int RequestStatus( SETBASEPARAM SetBasePara);
	virtual int ResponseStatus( int nAddr, int nRegNum, int nDataLen, char chMsg[80]);

	virtual int RequestWrStatus( SETBASEPARAM SetBasePara, double dbData, int nDataLen);
	virtual int ResponseWrStatus(int nAddr, int nRegNum, int nDataLen);
};

char ByteToAscii(BYTE btSrc);
WORD AsciiToBYTE(BYTE btSrc);
static unsigned char LRC(unsigned char *auchMsg, unsigned short usDataLen);

#endif // !defined(AFX_PROTOCOLPMC916_H_INCLUDED_)