Refresh Tag Command

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3. Drivers
4. Tag Commands
5. Refresh

Introduction

The Refresh Tag Command requests a data source to refresh its data immediately.

Parameters

None.

Remarks

You can execute Refresh Tag Command from:

• From an Operator Action using the TagRefresh Function.
• From a Program Tag using a TagRefreshFB Function Block. See Example Program to learn more.
• The Standard Tag Menu when used with one of the tags listed in the Applies To list.
• The Java API. For an example see Executing a Tag Command from Java.

To use the Refresh Tag Command, the user requires the Refresh User Right.

Requirements

Applies To

The Refresh Tag Command can be used with these tag types:

• Allen Bradley PLC Tag
• Allen Bradley Register Block Tag
• Core Driver I/O Bitmap Image Tag
• File Scanner Tag
• GE Fanuc PLC Tag
• Idec Micro PLC Tag
• Idec Micro Register Block Tag
• Mitsubishi Melsec PLC Tag
• Mitsubishi Melsec Register Block Tag
• Modbus Device Tag
• Modbus Register Block Tag
• Omron PLC Tag
• Omron Register Block Tag
• ODBC Client Query Tag
• OPC Classic Connection
• OPC UA Connection
• Siemens S7 PLC Tag
• Siemens S7 Memory Block Tag
• SNMP Agent

Fernhill SCADA Version 4.1 (20231126.1). Copyright © 2012-2023 Fernhill Software Ltd: All rights reserved.