# ControlLogix firmware 31 connectivity

**URL:** <https://forum.inductiveautomation.com/t/controllogix-firmware-31-connectivity/26152>\
**Category:** Ignition\
**Created:** [June 27, 2019, 6:44pm UTC](https://forum.inductiveautomation.com/t/controllogix-firmware-31-connectivity/26152 "2019-06-27T18:44:40Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [June 27, 2019, 6:47pm UTC](https://forum.inductiveautomation.com/t/controllogix-firmware-31-connectivity/26152/2 "2019-06-27T18:47:16Z")

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What version of Ignition?

> [@ControlLogix v31 Comuncation Problem](http://forum.inductiveautomation.com/t/controllogix-v31-comuncation-problem/21536):
>
> HI, I exchange about 40k tags with a ControlLogix 1756. After upgrade of firmware form v20 to v31 and conseguential change of ignition driver, I have some problem of comunication.

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