User Rights and Privileges

Introduction

A User Right is a permission allowing a user to do an action on Fernhill SCADA. Most User Rights apply to tags, for example Read or Write. Some other User Rights apply to Fernhill SCADA as a whole, for example Configure.

You can grant a User Right to a single zone, multiple zones, or all zones. You can also block a feature by removing the corresponding right from all zones.

Assigning User Rights

On Windows computers, user rights are assigned using the User Rights Editor.
On Linux and macOS computers, user rights are assigned by editing the file user-rights.conf. For more information see User Rights on Linux and macOS.

Supported User Rights

These User Rights are supported:

User Right	Applies To	Description
Refresh	Refresh Tag Command PollDataClass Tag Command	Permits a user to manually refresh data from its data source.
Write	WriteValue Tag Command WriteValueQuality Tag Command	Permits a user to write data to a tag, or to the underlying data source.
Force	ForceValue Tag Command RemoveForce Tag Command	Permits a user to apply a force to a tag, or remove a force from a tag.
Acknowledge	AcknowledgeAlarms Tag Command	Permits a user to acknowledge an alarm.
DisableAlarm	DisableAlarms Tag Command EnableAlarms Tag Command	Permits a user to enable or disable an alarm.
ShelveAlarm		Permits a user to shelve an alarm.
TuneAlarm	AlarmPropertyOverride Tag Command AlarmPropertyRestore Tag Command	Permits a user override properties of alarms. For example: Change an alarm limit from its configured value.
ViewAlarm		Permits a user to see alarms without having the Acknowledge right.
DirectWrite	DirectWriteBit Tag Command DirectWriteByte Tag Command DirectWriteString Tag Command DirectWriteWord Tag Command	Permits a user write directly to a data source.
WriteFile	WriteFile Tag Command	Permits a user to write a file to a DNP3 Outstation.
Configure	Fernhill SCADA	Permits a user to configure Fernhill SCADA

Testing the User Rights of a Tag

To test whether a user has an appropriate privilege to access a tag, read the value of the UserPrivileges property.

Further Information

Windows User Rights Editor

To learn how to set the rights of users accessing Fernhill SCADA running on Windows.

Editing User Rights on Linux and macOS

To learn how to set the rights of users accessing Fernhill SCADA running on Linux and macOS.

Fernhill SCADA Server

To learn more about the Fernhill SCADA Server.

Fernhill SCADA

To learn about the tools in Fernhill SCADA.

Configuration Tool

To learn about configuring Fernhill SCADA.

Glossary

For the meaning of terms used in Fernhill SCADA.