# DNP3 class event polling rate

**URL:** <https://forum.inductiveautomation.com/t/dnp3-class-event-polling-rate/56014>\
**Category:** Ignition\
**Created:** [February 11, 2022, 12:14am UTC](https://forum.inductiveautomation.com/t/dnp3-class-event-polling-rate/56014 "2022-02-11T00:14:42Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![idc](https://avatars.discourse-cdn.com/v4/letter/i/43a26b/32.png) [@idc](https://forum.inductiveautomation.com/u/idc)\
**Post date:** [February 11, 2022, 12:14am UTC](https://forum.inductiveautomation.com/t/dnp3-class-event-polling-rate/56014/1 "2022-02-11T00:14:42Z")

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I got a SCADAPack 474 and testing DNP3 communication with Ignition 8.1.13. I can’t find any information in Ignition for setting different polling rate with DNP3 class 1, 2, and 3. The integrity poll is working.

Thanks!

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 11, 2022, 12:35am UTC](https://forum.inductiveautomation.com/t/dnp3-class-event-polling-rate/56014/2 "2022-02-11T00:35:40Z")

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Sadly this driver in its current incarnation misses the mark and does not operate like this.

It either polls at the rate requested by the client using the Read function code or it uses unsolicited messaging.

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**Author:** ![idc](https://avatars.discourse-cdn.com/v4/letter/i/43a26b/32.png) [@idc](https://forum.inductiveautomation.com/u/idc)\
**Post date:** [February 11, 2022, 2:43am UTC](https://forum.inductiveautomation.com/t/dnp3-class-event-polling-rate/56014/3 "2022-02-11T02:43:18Z")

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Can integrity poll get buffered events from outstation or only poll class 0 event?

Thanks!