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pcnate avatar pcnate commented on September 15, 2024

I would say yes. Write your own function that performs a read based upon the scan rate timeout you wish to have.

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skykep avatar skykep commented on September 15, 2024

I meant natively rather than using setInterval to perform individual reads, which is less efficient than subscriptions.

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pcnate avatar pcnate commented on September 15, 2024

I wouldn't use a setInterval. track the last time each tag was read and then get the oldest one most needing to be read. Add several to a tag group and read the tag group is also an option. A feature request for this library may be to add a scan rate to tag groups.


while( true ) {
  await getNextTagThatIsAgedEnough()
  await readThatTag()
  await extraDelayWhenNoTags()
}

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skykep avatar skykep commented on September 15, 2024

A feature request for this library may be to add a scan rate to tag groups.

Great idea. Appreciate your insight.

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jhenson29 avatar jhenson29 commented on September 15, 2024

I always just read tag groups in a loop with a delay, similar to what Nate shows. But I do end up setting up different controllers for each tag group and even run each controller on its own server. Usually 4 total for my standard HMI framework. But some of that may be specific for my application.

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