dpi515com.h

压力控制器通讯源代码

/******************************************************************************/
/* File:        DPI515COM.H                                                   */
/*                                                                            */
/* Class:       cDPI515Communications                                         */
/* Author:      Alaster Jones                                                 */
/* Description: Derived from the VISA class specifically for DPI515 instru-   */
/*              ment communications, serial and IEEE.                         */
/*                                                                            */
/* Date:        02/03/01                                                      */
/******************************************************************************/
//---------------------------------------------------------------------------
#ifndef dpi515ComH
#define dpi515ComH

#include "VISAComm.h"
#include "presunit.h"

enum CommsProtocol
{
    eNoProtocol = 0,
    e515,
    e510,
    e520,
    e7000,
    e599
};

#define SRQ_VENT		0x0001
#define SRQ_RANGE		0x0002
#define SRQ_INLIMITS	0x0004
#define SRQ_ZERO		0x0008
#define SRQ_AUTOZERO	0x0010
#define SRQ_FILLTIMEOUT 0x0020
#define SRQ_IDLETIMEOUT 0x0040
#define SRQ_SWITCH		0x0100

//---------------------------------------------------------------------------
class cDPI515Communications : public cCommunications
{
private:
    char    instrumentRanges[10][20];
    char    instrumentUnits[30][20];
    char    currentRange[20];
    char    currentUnit[20];

    float   pressureReading; // current pressure
    float   currentRangeFS; // value in mbar

    short   numRanges;
    short   numUnits;

    ULONG   sndBytes;
    ULONG   rcdBytes;

    CommsProtocol   commsProtocol;
    PressureUnit * pUnit;

public:
    cDPI515Communications();
    ~cDPI515Communications();

    bool    trap_SRQ;
    short   trap_SRQ_Value;

    void    clearByteCounters(void);

    float   getmbarFS(void){return currentRangeFS;};

    char *  getinstrRange(short index){return (instrumentRanges[index]);};
    char *  getinstrUnit(short index){return (instrumentUnits[index]);};
    char *  getcurrentRange(void){return currentRange;};
    char *  getcurrentUnit(void){return currentUnit;};

    ULONG   getsndBytes(void){return sndBytes;};
    ULONG   getrcdBytes(void){return rcdBytes;};

    short   getnumRanges(void){return numRanges;};
    short   getnumUnits(void){return numUnits;};

    long    instrumentInitialisation(void);
    long    getInstrumentID(char * instrumentID);

    long    getPressure(double * pPressure);

    long    setSetpoint(double dSetpoint);
    long    getSetpoint(double * pdSetpoint);

    long    setControllerOnOff(short On);
    long    getControllerOnOff(short * pOn);

    long    getInstrumentRanges(void);
    long    getCurrentRange(char * strRange);
    long    setCurrentRange(char * strRange);

    long    getInstrumentUnits(void);
    long    getCurrentUnit(char * strUnit);
    long    setCurrentUnit(char * strUnit);

    long    setIsolationValve(short sOpen);

    long    getPressureOperationsRegister(short * pReg);
    long    onSRQ(short srqRegister);
    long    getStatusByte(ViSession vi, USHORT * srq);

    long    gotoLocal(void);

    double  getpressurePercentFS(double pressure);
    double  getpercentFSPressure(double pcFS);

    long    waitforSRQ(short waitPeriod, short * SRQ_event);
    long    setVent(short On);
};

#endif