Tag Command Function Blocks

Introduction

Tag Command function blocks send commands to Fernhill SCADA tags:

Function Block Type	Version	Explanation
TagAcknowledgeAlarmsFB	1.5	Acknowledges alarms associated with a tag.
TagDirectWriteBitFB	2.3	Writes a bit directly to any address in a data source.
TagDirectWriteByteFB	2.3	Writes one or more bytes directly to any address in a data source.
TagDirectWriteStringFB	3.30	Writes a text string directly to any address in a data source.
TagDirectWriteWordFB	2.3	Writes one or more words directly to any address in a data source.
TagDisableAlarmsFB	1.5	Disables alarms associated with a tag.
TagEnableAlarmsFB	1.5	Enables alarms associated with a tag.
TagForceValueFB	1.2	Applies a force to a tag.
TagRefreshFB	1.2	Requests a tag to refresh its data values.
TagRemoveForceFB	1.2	Removes the current force on a tag.
TagResetStatisticsFB	3.30	Resets the statistics of a tag.
TagRunFB	1.2	Triggers a calculation or program tag to run immediately.
TagSendMessageToFB	3.30	Sends a subject line and a message to a recipient using an SMTP Connector tag.
TagSetClockFB	2.4	Attempts to set the real time clock of a PLC device.
TagWriteFB	1.2	Triggers a tag to write a predefined value.
TagWriteValueFB	1.2	Writes a value to a tag.
TagWriteValueQualityFB	1.2	Writes value and quality to a tag.

Note: Tag Command Function Blocks require Fernhill SCADA Version 1.2 or later.

Further Information

Common Elements

To learn about other common language elements.

For the meaning of terms used in Fernhill SCADA.