Problem with Tag Engine to Data Socket Server Item

[solar56]

Hello, I think this is a sort of a newbie-question:

I try to connect an Analog/Input only tag with a Data Socket Server item, running on the same computer as the DSC-Module (6.1).
The item is written as a Double by a Data Socket Write from a remote computer (LABview 6.1)
No Variant, no Attributes just Double.
If I run the DSC VI, the Data Socket LED of the Tag becomes green, but the Value remains 0.00.
I think, I have to add some Attributes before I write the Double.

Thanks for any help.
Thomas

[Roli]

Thomas,

I tried to see this behavior and run into probably the same user "mistake". If you create an analog tag (w/ default settings) to e.g. dstp://localhost/random, the scaling of the tag would default to 0..100 and the update deadband of the engine is 1% - this means your DS Writer VI needs to change its value at least by 1.0 (but your random generator just changes value within 0..1). Therefore, the engine would never update the value because the deadband was not passed...

Attached is my test .scf file and your VI with the saved URL.

For further info you might check the DSC manuals or this link:
What is a Deadband? What Types of Deadbands Exist? How
are Deadbands Configured in OPC and the LabVI...

Hope this helps
Roland

[solar56]

Roland,

things can be so easy ...

Thank you

Thomas