Core Driver

Help Contents

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
Graphic Icon Graphic Page Tag 3.0 A preconfigured graphic page.
Text File Icon Text File Tag 3.13 A preconfigured plain text file.
Trend Icon Trend Plot Tag 2.6 A preconfigured trend plot showing one or more tag values historically.
Trend Icon Value Duration Plot Tag 3.68 A preconfigured value duration plot showing how much time a tag is more than a value.

Internal Data Point Tags

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

IconTag TypeVersionDescription
Analog Data Point Tag Internal Analog Data Point Tag 1.0 Stores an analog value in the tag database.
Digital Data Point Tag Internal Digital Data Point Tag 1.0 Stores a digital value in the tag database.
Word Data Point Tag Internal Word Data Point Tag 1.2 Stores a 16-bit integer value in the tag database.
Double Word Data Point Tag Internal Double Word Data Point Tag 1.3 Stores a 32-bit integer value in the tag database.
Long Word Data Point Tag Internal Long Word Data Point Tag 3.48 Stores a 64-bit integer value in the tag database.
String Data Point Tag Internal String Data Point Tag 1.2 Stores a variable length character string in the tag database.

I/O Data Point Tags

I/O Data Point Tags map data points to data sources. These I/O Data Point Tags are supported:

IconTag TypeVersionDescription
Analog Data Point Tag I/O Analog Data Point Tag 3.12 Maps an Analog Data Point Tag to a data source.
Digital Data Point Tag I/O Digital Data Point Tag 3.12 Maps a Digital Data Point Tag to a data source.
Word Data Point Tag I/O Word Data Point Tag 3.12 Maps a 16-bit Word Data Point Tag to a data source.
Double Word Data Point Tag I/O Double Word Data Point Tag 3.12 Maps a 32-bit Double Word Data Point Tag to a data source.
Long Word Data Point Tag I/O Long Word Data Point Tag 3.48 Maps a 64-bit Long Word Data Point Tag to a data source.
String Data Point Tag I/O String Data Point Tag 3.12 Maps a String Data Point Tag to a data source.

Calculated Data Point Tags

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

IconTag TypeVersionDescription
Analog Data Point Tag Calculated Analog Data Point Tag 1.0 Updates an analog value from the result of a calculation.
Digital Data Point Tag Calculated Digital Data Point Tag 1.0 Updates a digital value from the result of a calculation.
Word Data Point Tag Calculated Word Data Point Tag 1.2 Updates a 16-bit unsigned integer value from the result of a calculation.
Double Word Data Point Tag Calculated Double Word Data Point Tag 1.3 Updates a 32-bit unsigned integer value from the result of a calculation.
Long Word Data Point Tag Calculated Long Word Data Point Tag 3.48 Updates a 64-bit unsigned integer value from the result of a calculation.
String Data Point Tag Calculated String Data Point Tag 1.2 Updates a string value from the result of a calculation.

Bitmap Image Tags

Bitmap Image Tags store bitmap images in tags in the Fernhill SCADA Server. These Bitmap Image Tags are supported:

IconTag TypeVersionDescription
Bitmap Image Tag Internal Bitmap Image Tag 3.89 Stores a bitmap image in the tag database.
Bitmap Image Tag I/O Bitmap Image Tag 3.89 Maps a Bitmap Image Common Core Tag to an image source.

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 defined value.
Analog Alarm Analog Level Alarm Tag 1.5 Raises an alarm if a tag value is outside a defined range.

Time Series Tags

Time Series Tags generate summary data values at equal time spaced intervals. The output of these tags can be useful in data analysis applications.

These Time Series Tags are available:

TypeIconDescription
Counter Counter time series tag icon Counts digital state transitions in a time period.
Runtime Runtime time series tag icon Measures the amount of time that a tag is not zero (running).

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.
Database Table Icon Database Table Tag 3.35 An application specific database table.

Further Information

Fernhill SCADA Drivers

For information about other drivers available in Fernhill SCADA.

Glossary

For the meaning of terms used in Fernhill SCADA.