# Hour meter no longer working

**URL:** <https://forum.inductiveautomation.com/t/hour-meter-no-longer-working/8045>\
**Category:** Ignition\
**Created:** [February 24, 2014, 3:42pm UTC](https://forum.inductiveautomation.com/t/hour-meter-no-longer-working/8045 "2014-02-24T15:42:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![MiddleC](https://avatars.discourse-cdn.com/v4/letter/m/839c29/32.png) [@MiddleC](https://forum.inductiveautomation.com/u/MiddleC)\
**Post date:** [February 24, 2014, 3:42pm UTC](https://forum.inductiveautomation.com/t/hour-meter-no-longer-working/8045/1 "2014-02-24T15:42:16Z")

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In my transaction groups I have an insert and update group. Both groups use the same OPC tag to function (e.g. Mill\_Running).

After upgrading to 7.6.4 (OS = XP SP3), my update group never triggers because the Hour Meter never accumulates. The hour meter is an expression item: if(Running,0,1). The insert group works fine.

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**Author:** ![MiddleC](https://avatars.discourse-cdn.com/v4/letter/m/839c29/32.png) [@MiddleC](https://forum.inductiveautomation.com/u/MiddleC)\
**Post date:** [February 24, 2014, 4:36pm UTC](https://forum.inductiveautomation.com/t/hour-meter-no-longer-working/8045/2 "2014-02-24T16:36:36Z")

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Changed expression item to float and meter started working. Manual states datatype must be integer or float? Data type prior to upgrade was integer.