# AB 1756-L8x processor support

**URL:** <https://forum.inductiveautomation.com/t/ab-1756-l8x-processor-support/11199>\
**Category:** Ignition\
**Created:** [February 11, 2016, 4:33pm UTC](https://forum.inductiveautomation.com/t/ab-1756-l8x-processor-support/11199 "2016-02-11T16:33:53Z")\
**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:** [February 11, 2016, 4:33pm UTC](https://forum.inductiveautomation.com/t/ab-1756-l8x-processor-support/11199/1 "2016-02-11T16:33:53Z")

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Are the new Allen Bradley 1756-L8x processors supported for OPCUA comms?

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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, 2016, 4:38pm UTC](https://forum.inductiveautomation.com/t/ab-1756-l8x-processor-support/11199/2 "2016-02-11T16:38:17Z")

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Rockwell changed something in the firmware, so we had to make a change to accommodate… The change should land in the next versions of 7.7 and 7.8.

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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:** [February 11, 2016, 5:04pm UTC](https://forum.inductiveautomation.com/t/ab-1756-l8x-processor-support/11199/3 "2016-02-11T17:04:32Z")

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Is the change needed only for the L8 hardware or for the v28 firmware (which can also run on L7 processors)?

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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, 2016, 5:12pm UTC](https://forum.inductiveautomation.com/t/ab-1756-l8x-processor-support/11199/4 "2016-02-11T17:12:25Z")

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I don’t know, at the time I was testing firmware v28 it was only available for the L8x series.

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**Author:** ![Curlyandshemp](https://avatars.discourse-cdn.com/v4/letter/c/bcef8e/32.png) [@Curlyandshemp](https://forum.inductiveautomation.com/u/Curlyandshemp)\
**Post date:** [February 14, 2016, 9:04pm UTC](https://forum.inductiveautomation.com/t/ab-1756-l8x-processor-support/11199/5 "2016-02-14T21:04:29Z")

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> [@Tim](#):
>
> Are the new Allen Bradley 1756-L8x processors supported for OPCUA comms?

I got caught with this issue last month.  
V7.7.7 has the update to support V28