Create XY Channel associated to an existing time channel

[panta1978]

Hi,

Suppose that in my Data Portal there is a group (e.g. "Group Test") containing a time channel ("Group Test/time") and several XY Channels ("Group Test/Var00", "Group Test/Var01", etc.)

I would like to create a new XY Channel  associated to "Group Test/time". It should be added to the same Group. This new Channel of course hs the same length as all the other channels of that group.

I am able to create a channel, but I cannot associate to the time reference

# Create Channel. OK
dd.ArrayToChannels(outX, ['Group Test/calcChan']) 

# Associate calculated channel with X-Reference. KO
dd.Data.Root.ChannelGroups('Group Test').Channels('calcChan').XRelation = 'time'

Running the script above, I get the error message "AttributeError: Property '<unknown>.XRelation' can not be set."

Is there a way to do it? Many thanks

[panta1978 · Accepted solution]

I figured it out! In case someone else will need it, that's how I did it.

# Create Channel. OK
dd.ArrayToChannels(outX, ['Group Test/calcChan']) 

# Associate calculated channel with X-Reference. KO
dd.Data.Root.ChannelGroups('Group Test').Channels('calcChan').xRelation = dd.Data.Root.ChannelGroups('Group Test').Channels('time')

Basically I shouldn't associate a text string, but a channel.