pascalSCADA OPM: psOPC_AE

Pascal SCADA OPM

Unit psOPC_AE

Description

*******************************************************

Overview

Classes, Interfaces, Objects and Records

Name Description
Record ONEVENTSTRUCT  
Record OPCEVENTSERVERSTATUS  
Record OPCCONDITIONSTATE  
Interface IOPCEventServer  
Interface IOPCEventSubscriptionMgt  
Interface IOPCEventAreaBrowser  
Interface IOPCEventSink  
Interface IOPCEventServer2  
Interface IOPCEventSubscriptionMgt2  

Types

OPCAEBROWSEDIRECTION = TOleEnum;
OPCAEBROWSETYPE = TOleEnum;
OPCEVENTSERVERSTATE = TOleEnum;
PONEVENTSTRUCT = ˆONEVENTSTRUCT;
ONEVENTSTRUCTARRAY = array[0..65535] of ONEVENTSTRUCT;
PONEVENTSTRUCTARRAY = ˆONEVENTSTRUCTARRAY;
POPCEVENTSERVERSTATUS = ˆOPCEVENTSERVERSTATUS;
POPCCONDITIONSTATE = ˆOPCCONDITIONSTATE;

Constants

LIBID_OPC_AE: TGUID = '{65168844-5783-11D1-84A0-00608CB8A7E9}';
IID_IOPCEventServer: TIID = '{65168851-5783-11D1-84A0-00608CB8A7E9}';
IID_IOPCEventSubscriptionMgt: TIID = '{65168855-5783-11D1-84A0-00608CB8A7E9}';
IID_IOPCEventAreaBrowser: TIID = '{65168857-5783-11D1-84A0-00608CB8A7E9}';
IID_IOPCEventSink: TIID = '{6516885F-5783-11D1-84A0-00608CB8A7E9}';
IID_IOPCEventServer2: TIID = '{71BBE88E-9564-4BCD-BCFC-71C558D94F2D}';
IID_IOPCEventSubscriptionMgt2: TIID = '{94C955DC-3684-4CCB-AFAB-F898CE19AAC3}';
OPCEventServerCATID: TGUID = '{58E13251-AC87-11D1-84D5-00608CB8A7E9}';
OPCAE_BROWSE_UP = 1;
OPCAE_BROWSE_DOWN = 2;
OPCAE_BROWSE_TO = 3;
OPC_AREA = 1;
OPC_SOURCE = 2;
OPCAE_STATUS_RUNNING = 1;
OPCAE_STATUS_FAILED = 2;
OPCAE_STATUS_NOCONFIG = 3;
OPCAE_STATUS_SUSPENDED = 4;
OPCAE_STATUS_TEST = 5;
OPCAE_STATUS_COMM_FAULT = 6;
OPC_QUALITY_MASK = $C0;
OPC_STATUS_MASK = $FC;
OPC_LIMIT_MASK = $03;
OPC_QUALITY_BAD = $00;
OPC_QUALITY_UNCERTAIN = $40;
OPC_QUALITY_GOOD = $C0;
OPC_QUALITY_CONFIG_ERROR = $04;
OPC_QUALITY_NOT_CONNECTED = $08;
OPC_QUALITY_DEVICE_FAILURE = $0C;
OPC_QUALITY_SENSOR_FAILURE = $10;
OPC_QUALITY_LAST_KNOWN = $14;
OPC_QUALITY_COMM_FAILURE = $18;
OPC_QUALITY_OUT_OF_SERVICE = $1C;
OPC_QUALITY_LAST_USABLE = $44;
OPC_QUALITY_SENSOR_CAL = $50;
OPC_QUALITY_EGU_EXCEEDED = $54;
OPC_QUALITY_SUB_NORMAL = $58;
OPC_QUALITY_LOCAL_OVERRIDE = $D8;
OPC_CONDITION_ENABLED = $0001;
OPC_CONDITION_ACTIVE = $0002;
OPC_CONDITION_ACKED = $0004;
OPC_CHANGE_ACTIVE_STATE = $0001;
OPC_CHANGE_ACK_STATE = $0002;
OPC_CHANGE_ENABLE_STATE = $0004;
OPC_CHANGE_QUALITY = $0008;
OPC_CHANGE_SEVERITY = $0010;
OPC_CHANGE_SUBCONDITION = $0020;
OPC_CHANGE_MESSAGE = $0040;
OPC_CHANGE_ATTRIBUTE = $0080;
OPC_SIMPLE_EVENT = $0001;
OPC_TRACKING_EVENT = $0002;
OPC_CONDITION_EVENT = $0004;
OPC_ALL_EVENTS = OPC_SIMPLE_EVENT or OPC_TRACKING_EVENT or OPC_CONDITION_EVENT;
OPC_FILTER_BY_EVENT = $0001;
OPC_FILTER_BY_CATEGORY = $0002;
OPC_FILTER_BY_SEVERITY = $0004;
OPC_FILTER_BY_AREA = $0008;
OPC_FILTER_BY_SOURCE = $0010;

Description

Types

OPCAEBROWSEDIRECTION = TOleEnum;

*********************************************************************// Declaration of Enumerations defined in Type Library // *********************************************************************//

OPCAEBROWSETYPE = TOleEnum;
 
OPCEVENTSERVERSTATE = TOleEnum;
 
PONEVENTSTRUCT = ˆONEVENTSTRUCT;
 
ONEVENTSTRUCTARRAY = array[0..65535] of ONEVENTSTRUCT;
 
PONEVENTSTRUCTARRAY = ˆONEVENTSTRUCTARRAY;
 
POPCEVENTSERVERSTATUS = ˆOPCEVENTSERVERSTATUS;
 
POPCCONDITIONSTATE = ˆOPCCONDITIONSTATE;
 

Constants

LIBID_OPC_AE: TGUID = '{65168844-5783-11D1-84A0-00608CB8A7E9}';

*********************************************************************// GUIDS declared in the TypeLibrary // *********************************************************************//

IID_IOPCEventServer: TIID = '{65168851-5783-11D1-84A0-00608CB8A7E9}';
 
IID_IOPCEventSubscriptionMgt: TIID = '{65168855-5783-11D1-84A0-00608CB8A7E9}';
 
IID_IOPCEventAreaBrowser: TIID = '{65168857-5783-11D1-84A0-00608CB8A7E9}';
 
IID_IOPCEventSink: TIID = '{6516885F-5783-11D1-84A0-00608CB8A7E9}';
 
IID_IOPCEventServer2: TIID = '{71BBE88E-9564-4BCD-BCFC-71C558D94F2D}';
 
IID_IOPCEventSubscriptionMgt2: TIID = '{94C955DC-3684-4CCB-AFAB-F898CE19AAC3}';
 
OPCEventServerCATID: TGUID = '{58E13251-AC87-11D1-84D5-00608CB8A7E9}';
 
OPCAE_BROWSE_UP = 1;
 
OPCAE_BROWSE_DOWN = 2;
 
OPCAE_BROWSE_TO = 3;
 
OPC_AREA = 1;
 
OPC_SOURCE = 2;
 
OPCAE_STATUS_RUNNING = 1;
 
OPCAE_STATUS_FAILED = 2;
 
OPCAE_STATUS_NOCONFIG = 3;
 
OPCAE_STATUS_SUSPENDED = 4;
 
OPCAE_STATUS_TEST = 5;
 
OPCAE_STATUS_COMM_FAULT = 6;
 
OPC_QUALITY_MASK = $C0;

*********************************************************************// OPC Quality flags // *********************************************************************// Masks for extracting quality subfields (note 'status' mask also includes 'Quality' bits)

OPC_STATUS_MASK = $FC;
 
OPC_LIMIT_MASK = $03;
 
OPC_QUALITY_BAD = $00;

Values for QUALITY_MASK bit field

OPC_QUALITY_UNCERTAIN = $40;
 
OPC_QUALITY_GOOD = $C0;
 
OPC_QUALITY_CONFIG_ERROR = $04;

STATUS_MASK Values for Quality = BAD

OPC_QUALITY_NOT_CONNECTED = $08;
 
OPC_QUALITY_DEVICE_FAILURE = $0C;
 
OPC_QUALITY_SENSOR_FAILURE = $10;
 
OPC_QUALITY_LAST_KNOWN = $14;
 
OPC_QUALITY_COMM_FAILURE = $18;
 
OPC_QUALITY_OUT_OF_SERVICE = $1C;
 
OPC_QUALITY_LAST_USABLE = $44;

STATUS_MASK Values for Quality = UNCERTAIN

OPC_QUALITY_SENSOR_CAL = $50;
 
OPC_QUALITY_EGU_EXCEEDED = $54;
 
OPC_QUALITY_SUB_NORMAL = $58;
 
OPC_QUALITY_LOCAL_OVERRIDE = $D8;

STATUS_MASK Values for Quality = GOOD

OPC_CONDITION_ENABLED = $0001;

State bit masks

OPC_CONDITION_ACTIVE = $0002;
 
OPC_CONDITION_ACKED = $0004;
 
OPC_CHANGE_ACTIVE_STATE = $0001;

bit masks for m_wChangeMask

OPC_CHANGE_ACK_STATE = $0002;
 
OPC_CHANGE_ENABLE_STATE = $0004;
 
OPC_CHANGE_QUALITY = $0008;
 
OPC_CHANGE_SEVERITY = $0010;
 
OPC_CHANGE_SUBCONDITION = $0020;
 
OPC_CHANGE_MESSAGE = $0040;
 
OPC_CHANGE_ATTRIBUTE = $0080;
 
OPC_SIMPLE_EVENT = $0001;

dwEventType

OPC_TRACKING_EVENT = $0002;
 
OPC_CONDITION_EVENT = $0004;
 
OPC_ALL_EVENTS = OPC_SIMPLE_EVENT or OPC_TRACKING_EVENT or OPC_CONDITION_EVENT;
 
OPC_FILTER_BY_EVENT = $0001;

QueryAvailableFilters() bit masks

OPC_FILTER_BY_CATEGORY = $0002;
 
OPC_FILTER_BY_SEVERITY = $0004;
 
OPC_FILTER_BY_AREA = $0008;
 
OPC_FILTER_BY_SOURCE = $0010;
 

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