SCADA平台驱动开发调试说明文档.docx

1. 驱动信息结构所有的结构都定义在文件“Data类型.h”中。_DevAddr该结构定义了设备地址格式.类型def struct _DevAddr???????? {?????????????????????? UINT??? nDevAddr;????????? TCHAR?? sDevAddr[MAX_DEV_LEN];?}DEVADDR, * PDEVADDR;?成员:sDevAddr: 用户在组态王中输入的原地址格式字符串。nDevAddr:实际转换后的设备地址数字.ComDevice这是串口设置信息的结构体.struct ComDevice????????{?????????????????? short nFlag;??? ??? ??? WORD? deviceKind;??????? TCHAR? deviceName[32];? ??? int?? baudRate;???? ??? short dataBits;???? ??? short stopBits;???? ??? short parity;?????? ??? short timeOut;????? ??? short failTimes;???????? short retryInterval;?????? short isRs232;????? };?成员：nFlag：串口标志，目前没有用到.DeviceKind：设备类型，1代表串口设备DeviceName：逻辑名称 =={COM1，COM2...}BaudRate：波特率，范围是从 110到256000。DataBits：数据位StopBits：停止位.值描述ONESTOPBIT1 停止位ONE5STOPBITS1.5 停止位TWOSTOPBITS2 停止位Parity ：校验. 值描述EVENPARITY偶校验MARKPARITY标志校验NOPARITY无校验ODDPARITY奇校验SPACEPARITY空格校验?TimeOut：超时，单位是毫秒FailTimes：失败次数RetryInterval：尝试间隔isRs232：通讯模式，1代表RS232, 2代表RS422, 3代表RS485.PLCVAR该结构定义了用户变量的属性.类型def struct var????????????? {????????????????????????? WORD wVarID;????? ????????? WORD wVarType;????? ??????? ?? TCHAR szVarName[32]; ?????? ??? ??? short? nDeviceIndex;??????? ???? short? nUnitNo;?????????????? DEVADDR *pDevAddr;????????? ??? TCHAR?? *pszRegName;??????????? short? nRegType;???? ?????? ??? short? nSubType;?????????????? short? nSubType1;?????????????? short? nSubType2;?????????? ?? short? nNo;????????? ???????? short? nDataType;??? ?????? ???? short? nAccessMode;??????? ?? long?? nFrequency;?? ?????? ???? long? nTimerCount;? ??????? ????? ??? CWinThread* pComThread;???? ??? DDEValue?? maxRaw;????????? ??? DDEValue?? minRaw;????????? ??? short????? bConvertion;???? ???? short????? isBad;???????????? short????? isUnvalid;???????}PLCVAR, * PPLCVAR;成员：wvarID:变量IDwVarType:变量类型，为如下几种：Bit, byte, int, uint, BCD, long, float, longbcd, stringszVarName:变量名nDeviceIndex:设备索引nUnitNo:设备地址单元pDevAddr:设备地址pszRegName:寄存器名称nRegType;寄存器类型nSubType:nSubType1:nSubType2:子类型，没有用到，如在驱动中有其他需要，可以自己定义使用。nNo:寄存器通道nDataType:数据类型nAccessMode:读写属