Core Driver

Introduction

The Core Driver provides these types of tags:

Display Page Tags

Display Page Tags define the content of pages displayed to an operator. These tags are supported:

IconTag TypeVersionDescription
Trend Icon Trend Tag 2.6 A preconfigured trend showing one or more tag values historically.
Graphic Icon Graphic Page Tag 3.0 A preconfigured graphic page stored in a tag.

Internal Data Tags

Internal Data Tags store data points internally in the Fernhill SCADA Server. These internal data tags are supported:

IconTag TypeVersionDescription
Analog Data Tag Internal Analog Data Tag 1.0 Stores an analog tag value not derived from any data source.
Digital Data Tag Internal Digital Data Tag 1.0 Stores a digital tag value not derived from any data source.
String Data Tag Internal String Data Tag 1.2 Stores a variable length character string not derived from any data source.
Word Data Tag Internal Word Tag 1.2 Stores a 16 bit integer value not derived from any data source.
Double Word Data Tag Internal Double Word Tag 1.3 Stores a 32 bit integer value not derived from any data source.

IO Data Tags

IO Data Tags map data points to external data sources. These IO data tags are supported:

IconTag TypeVersionDescription
Analog Data Tag IO Analog Data Tag 3.12 Maps an analog tag to an external data source.
Digital Data Tag IO Digital Data Tag 3.12 Maps a digital tag to an external data source.
String Data Tag IO String Data Tag 3.12 Maps a string tag to an external data source.
Word Data Tag IO Word Tag 3.12 Maps a 16-bit unsigned integer tag to an external data source.
Double Word Data Tag IO Double Word Tag 3.12 Maps a 32-bit unsigned integer tag to an external data source.

Calculated Data Tags

Calculated Data Tags use a calculation to define the value of a tag. These calculated data tags are supported:

IconTag TypeVersionDescription
Analog Data Tag Calculated Analog Data Tag 1.0 Updates an analog tag from the result of a calculation.
Digital Data Tag Calculated Digital Data Tag 1.0 Updates a digital tag from the result of a calculation.
String Data Tag Calculated String Data Tag 1.2 Updates a string tag from the result of a calculation.
Word Data Tag Calculated Word Tag 1.2 Updates a 16-bit unsigned integer tag from the result of a calculation.
Double Word Data Tag Calculated Double Word Tag 1.3 Updates a 32-bit unsigned integer tag from the result of a calculation.

Alarm Tags

Alarm Tags raise alarms if the associated data tag meets certain conditions. These alarm tags are supported:

IconTag TypeVersionDescription
Digital Alarm Digital Alarm Tag 1.5 Raises an alarm if a tag is a specified value.
Analog Alarm Analog Level Alarm Tag 1.5 Raises an alarm if a tag value is outside of a specified range.

Program Tags

Program Tags store IEC 61131-3 Scripts. These program tags are supported:

IconTag TypeVersionDescription
Program Tag Program Tag 2.0 Runs an program script.
Program Library Tag Program Library Tag 2.0 A library of shared functions and function blocks.

Organization Tags

Organization Tags are used to organize the structure of the tag database. These organization tags are supported:

Icon Tag Type Version Description
Folder Icon Folder Tag 1.0 A folder for other tags and folders.
Database Root Icon Database Root Tag 1.0 The root tag of the tag database.

Further Information

Fernhill SCADA Drivers

For information about other drivers available in Fernhill SCADA.

Glossary

For the meaning of terms used in Fernhill SCADA.