Tag Command Functions

Introduction

Tag command functions allow an Operator Action (written as IEC 61131-3 Structured Text) to send commands to tags. For example:

Tag Command Functions

You can use these IEC 61131-3 functions in operator action scripts to send commands to tags:

FunctionReturnsDescription
TagAcknowledgeAlarms Acknowledges the alarms associated with a tag using the AcknowledgeAlarms Tag Command.
TagDisableAlarms Disables the alarms associated with a tag using the DisableAlarms Tag Command.
TagEnableAlarms Enables the alarms associated with a tag using the EnableAlarms Tag Command.
TagForceValue Forces the value of a tag to a fixed constant value using the ForceValue Tag Command.
TagSendMessageTo Sends a message to a user using the SendMessageTo Tag Command.
TagWriteValue Writes a new value to a tag using the WriteValue Tag Command.
TagWriteValueQuality Writes a new value and quality to a tag using the WriteValueQuality Tag Command.
TagRefresh Requests and immediate refresh of data using the Refresh Tag Command.
TagResetStatistics Resets the statistics of a tag using the ResetStatistics Tag Command.
TagRemoveForce Removes any forcing applies to a tag using the RemoveForce Tag Command.
TagRun Requests and immediate calculation or program execution using the Run Tag Command.

These functions can be called using a Structured Text Function Call.

Further Information

Operator Actions

To learn about where you can configure operator actions.

Driver Tag Commands

For more information about tag commands.

Glossary

For the meaning of terms used in Fernhill SCADA.