Driven Tag Group Not Working

Ignition
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1

We're encountering difficulties with the Driven Tag group functionality. Our test setup includes a Heartbeat tag (sourced from a PLC) and a MachineState memory boolean tag. This tag group is set up as Driven, utilizing the MachineState tag as the driver and using a comparison of '=1', a default rate of 10000ms, with a driven rate at 1000ms. Despite what appears to be the correct setup of the MachineState tag within the driven tag group, regardless of the MachineState tag's value, the Heartbeat continues to update at 1000ms.

Are we missing something obvious?

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Ignition 8.1.26

2

What driver is the OPC tag from?

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Allen-Bradley Logix Driver

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When the driving tag is off vs on, look at the diagnostics for the heartbeat tag. Does it claim to be leased or not leased?

Screenshot from 2024-02-14 06-18-21
Screenshot from 2024-02-14 06-18-211015×719 42.1 KB

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In either state, the tag read Is Leased=False

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Hmm, that's actually the case for me too, though everything else works as expected for me.

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Is it possible your heartbeat tag is being read elsewhere as well, even possibly as part of a larger structure?

1 Like
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Solved. Works fine for historization, needs to be on polling to actually see it changed the rate of value update.