opcaedef.h

OPC客户程序所需要的头文件。 OPC基金会产品。 适用于opc1.0和opc2.0规范。

//==============================================================================
// TITLE: opcaedef.h
//
// CONTENTS:
// 
// Defines constants for the OPC Alarms & Events specification.
//
// (c) Copyright 1997-2003 The OPC Foundation
// ALL RIGHTS RESERVED.
//
// DISCLAIMER:
//  This code is provided by the OPC Foundation solely to assist in 
//  understanding and use of the appropriate OPC Specification(s) and may be 
//  used as set forth in the License Grant section of the OPC Specification.
//  This code is provided as-is and without warranty or support of any sort
//  and is subject to the Warranty and Liability Disclaimers which appear
//  in the printed OPC Specification.
//
// MODIFICATION LOG:
//
// Date       By    Notes
// ---------- ---   -----
// 2002/10/02 JL    Updated for Version 1.1.
// 2003/01/06 RSA   Fixed formatting to comply with coding guidelines.
//

#ifndef __OPCAEDEF_H
#define __OPCAEDEF_H



// OPC Alarm & Event Component Category Description
#define OPC_EVENTSERVER_CAT_DESC L"OPC Alarm & Event Server Version 1.0"


//****************************************************
// OPC Quality flags 
//
// Masks for extracting quality subfields
// (note 'status' mask also includes 'Quality' bits)
//
#define    OPC_QUALITY_MASK            0xC0
#define    OPC_STATUS_MASK             0xFC
#define    OPC_LIMIT_MASK              0x03

// Values for QUALITY_MASK bit field
//
#define    OPC_QUALITY_BAD             0x00
#define    OPC_QUALITY_UNCERTAIN       0x40
#define    OPC_QUALITY_GOOD            0xC0

// STATUS_MASK Values for Quality = BAD
//
#define    OPC_QUALITY_CONFIG_ERROR    0x04
#define    OPC_QUALITY_NOT_CONNECTED   0x08
#define    OPC_QUALITY_DEVICE_FAILURE  0x0c
#define    OPC_QUALITY_SENSOR_FAILURE  0x10
#define    OPC_QUALITY_LAST_KNOWN      0x14
#define    OPC_QUALITY_COMM_FAILURE    0x18
#define    OPC_QUALITY_OUT_OF_SERVICE  0x1C

// STATUS_MASK Values for Quality = UNCERTAIN
//
#define    OPC_QUALITY_LAST_USABLE     0x44
#define    OPC_QUALITY_SENSOR_CAL      0x50
#define    OPC_QUALITY_EGU_EXCEEDED    0x54
#define    OPC_QUALITY_SUB_NORMAL      0x58

// STATUS_MASK Values for Quality = GOOD
//
#define    OPC_QUALITY_LOCAL_OVERRIDE  0xD8


// State bit masks
#define OPC_CONDITION_ENABLED			0x0001
#define OPC_CONDITION_ACTIVE			0x0002
#define OPC_CONDITION_ACKED				0x0004


// bit masks for m_wChangeMask
#define OPC_CHANGE_ACTIVE_STATE			0x0001
#define OPC_CHANGE_ACK_STATE			0x0002
#define OPC_CHANGE_ENABLE_STATE			0x0004
#define OPC_CHANGE_QUALITY				0x0008
#define OPC_CHANGE_SEVERITY				0x0010
#define OPC_CHANGE_SUBCONDITION			0x0020
#define OPC_CHANGE_MESSAGE				0x0040
#define OPC_CHANGE_ATTRIBUTE			0x0080


// dwEventType
#define OPC_SIMPLE_EVENT				0x0001
#define OPC_TRACKING_EVENT				0x0002
#define OPC_CONDITION_EVENT				0x0004

#define OPC_ALL_EVENTS	(OPC_SIMPLE_EVENT | OPC_TRACKING_EVENT | OPC_CONDITION_EVENT )


// QueryAvailableFilters() bit masks
#define OPC_FILTER_BY_EVENT				0x0001
#define OPC_FILTER_BY_CATEGORY			0x0002
#define OPC_FILTER_BY_SEVERITY			0x0004
#define OPC_FILTER_BY_AREA				0x0008
#define OPC_FILTER_BY_SOURCE			0x0010


#endif