Reference (RT Unified) - WinCC Unified

WinCC Unified Open Pipe (RT Unified)

ft:publication_title
WinCC Unified Open Pipe (RT Unified)
Product
WinCC Unified
Version
V20
Publication date
06/2025
Language
en-US
Reference

The following section contains a reference of the properties of tags that you get with the command ReadTagValue.

The commands transfer the property values as string.

Tag properties

"Name" property

Name of the tag

"Value" property

Value of the tag at the moment of the read operation.

"Quality" property

Quality of the read operation of the tag

Possible values:

  • "Good"

  • "Bad"

  • "Uncertain"

"ErrorDescription" property

Description of the error code of the last read or write operation of the tag