# Allen-Bradley Logix Driver

**URL:** <https://forum.inductiveautomation.com/t/allen-bradley-logix-driver/10000>\
**Category:** Ignition\
**Created:** [May 11, 2015, 2:06pm UTC](https://forum.inductiveautomation.com/t/allen-bradley-logix-driver/10000 "2015-05-11T14:06:54Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Tim](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tim/32/3361_2.png) [@Tim](https://forum.inductiveautomation.com/u/Tim)\
**Post date:** [May 11, 2015, 2:06pm UTC](https://forum.inductiveautomation.com/t/allen-bradley-logix-driver/10000/1 "2015-05-11T14:06:54Z")

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Following power off ControlLogix PLCs (firmware v24) tags remained bad quality hours after power restoration. In the gateway the device status was normal (“Connected”) and tags could be browsed from the Designer, but would remain bad quality. When the PLC device edit was opened in the gateway and “Save Changes” selected without making any changes the connection returned to normal and tag quality restored. During this time other OPCUA products - Kepware and RSLinx Enterprise were unaffected.

Logix Driver 1.7.4  
Ignition 7.7.4

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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:** [May 11, 2015, 3:24pm UTC](https://forum.inductiveautomation.com/t/allen-bradley-logix-driver/10000/2 "2015-05-11T15:24:18Z")

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Hmm… I’ll take a look at this.

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**Author:** ![dmoon](https://avatars.discourse-cdn.com/v4/letter/d/278dde/32.png) [@dmoon](https://forum.inductiveautomation.com/u/dmoon)\
**Post date:** [May 13, 2015, 7:12pm UTC](https://forum.inductiveautomation.com/t/allen-bradley-logix-driver/10000/3 "2015-05-13T19:12:58Z")

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Experiencing same thing with 7.6.7

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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:** [May 13, 2015, 7:27pm UTC](https://forum.inductiveautomation.com/t/allen-bradley-logix-driver/10000/4 "2015-05-13T19:27:50Z")

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Tim, I think I fixed this for 7.7.5.

dmoon, this is a different driver than the one in 7.6.7. Could you export your logs and send them into support to start a ticket?

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**Author:** ![dmoon](https://avatars.discourse-cdn.com/v4/letter/d/278dde/32.png) [@dmoon](https://forum.inductiveautomation.com/u/dmoon)\
**Post date:** [June 4, 2015, 7:20pm UTC](https://forum.inductiveautomation.com/t/allen-bradley-logix-driver/10000/5 "2015-06-04T19:20:35Z")

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Haven’t noticed this since 7.7.4 upgrade.