Common Core Tag

Help Contents

Introduction

The Core Tag serves as a common base for all other types of Tag.

Configuration Properties

The configuration properties of the Core Tag relate to its identification and its user rights:

Property Type Version Description
Name WSTRING 1.0 The name of the tag within its folder
DriverName WSTRING 1.0 The name of the driver providing this tag
TypeName WSTRING 1.0 The tag type name
TypeLabel WSTRING 1.0 The tag type description
Description WSTRING 1.0 A description field where you can enter a description about the tag
UserField1 WSTRING 1.0 A field where you can store application specific data
UserField2 WSTRING 1.0 A field where you can store application specific data
EventSeverity UINT 1.7 The severity of event log entries for state changes associated with this tag. A value of zero disables storage of state change events.
EventSeverityConfiguration UINT 3.25 The severity of event log entries for configuration changes associated with this tag. A value of zero disables storage of configuration change events.
EventSeverityOperator UINT 3.25 The severity of event log entries for operator actions associated with this tag. A value of zero disables storage of operator action events.
UserRightsZone USINT 1.5 The security zone for the tag

UserRightsZone Property

The UserRightsZone property together with the User Rights define what each user can do with each tag. The UserRightsZone defines which security zone the tag belongs to. To change the rights assigned to users:

Dynamic Properties

The Core Tag supports these dynamic properties:

Property Type Description
Quality INT The quality of the dynamic data of this tag.
Timestamp DATE_AND_TIME The timestamp of the last update to the dynamic data of this tag.

Relationships to Other Tag Types

The Core Tag is used as a building block for these tag types:

Further Information

Glossary

For the meaning of terms used in Fernhill SCADA.