WriteValueQuality Tag Command

Help Contents

Introduction

The WriteValueQuality Tag Command writes a new value and quality to a tag.

Applies To

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

Parameters

Value : ANY_ELEMENTARY

The new value of the tag.

Quality : INT

The new quality of the tag.

Remarks

The WriteValueQuality Tag Command writes a new value and quality to a tag.

The Value parameter is ANY_ELEMENTARY. ANY_ELEMENTARY is a generic data type, which allows any simple value. For more information on ANY_ELEMENTARY and other generic data types see Generic Data Types.

The WriteValueQuality Tag Command will attempt to convert the Value parameter to a type compatible with the host tag. To avoid errors you should ensure the Value parameter is compatible with the host tag. The type expected by the driver for a given tag type is shown in this table:

Icon Tag Type Expected Value Type
Analog Data Point Tag Icon Analog LREAL
Digital Data Point Tag Icon Digital BOOL
Word Data Point Tag Icon Word UINT
Double Word Data Point Tag Icon Double Word UDINT
Long Word Data Point Tag Icon Long Word ULINT
String Data Point Tag Icon String WSTRING

You can execute WriteValueQuality Tag Command from:

To use the WriteValueQuality Tag Command, the user requires the Write User Right.

Requirements

Fernhill SCADA VersionVersion 1.2
Required User RightWrite

See Also

WriteValue