Use Signal Property in formula

[Michael Hüpkes]

Hello Community,

I would like to use the property of a signal / PI tag within a calculation. In my special use case, there are properties for zero / span of the measurement and I would like to check for occurrences, where the signal hit those boundaries.

Ideally I expected something like

signal.property('zero').toSignal()

to retrieve the property value and convert it into a signal. Sadly I couldn't find any appropriate method to access the signal properties.

Am I missing something or is this feature not yet available?

[Thorsten Vogt]

Hello Michael,

as far as I know it is not possible within Seeq Formula to access the metadata of a signal. The property() function can be used to get values from a capsule property within Seeq, which is either set in a formula using the setProperty() function or directly read from the datasource if the indexed item is a condition.

I guess in order to use the metadata of a signal in Seeq you would need to setup a new PI tag/AF Attribute, that contains the data, or use Data Lab to extract the information and write it back to Seeq.

Regards,

Thorsten