System.tag.configure dataset regression in 8.3

Ignition
1

Hi all, currently upgrading from 8.1.45 to 8.3.4 and noticed an issue with configuring datasets.

Below is a simple example:

header = ['myColumn']
rows = [[1], [2]]
dataset = system.dataset.toDataSet(header, rows)

system.tag.configure(
	"[default]Test", [                {
                    "valueSource": "memory",
                    "name": "Test",
                    "tagType": "AtomicTag",
                    "value": dataset,
                    "dataType": "DataSet"
                }])

When ran on an 8.1 gateway I get the expected behavior along with [Good] output:

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When ran on an 8.3 gateway I get a null and a [Good] from the output:

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Has anyone also ran into this issue? We rely heavily on this behavior as we cache master data in the tags using this method.

Thanks in advance!

2

Where are you running this script - in the designer, or on the gateway?

3

Hi Paul,

Running on the script on the designer but initially noticed while it was running gateway scoped. Didn't observe any difference in scope.

4

Are you able to try the 8.3.5 nightly/RC, by any chance?

8.3.5 changes the way the tag system serializes objects, which might be the root cause here. I'm just making educated guesses though - I haven't actually plugged this in to the IDE to see the true root cause.

5

Tested an ephemeral 8.3.5-rc1 gateway and still same behavior

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Tested 8.3-nightly (8.3.6-SNAPSHOT).

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Please let me know if there is any additionally troubleshooting steps needed!

6

Support ticket that I filed confirmed that this is a bug. Work around given by support is to write to the tag directly system.tag.write* while they work on filing a bug report.

Thanks for the initial support Paul :+1:

7

(just note you won't be able to do this for read-only tags, which is where configure comes in)