# ControlLogix Driver Device Key equals 0

**URL:** <https://forum.inductiveautomation.com/t/controllogix-driver-device-key-equals-0/4157>\
**Category:** Ignition\
**Created:** [March 16, 2012, 5:06pm UTC](https://forum.inductiveautomation.com/t/controllogix-driver-device-key-equals-0/4157 "2012-03-16T17:06:03Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![weertske](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/weertske/32/3353_2.png) [@weertske](https://forum.inductiveautomation.com/u/weertske)\
**Post date:** [March 16, 2012, 5:06pm UTC](https://forum.inductiveautomation.com/t/controllogix-driver-device-key-equals-0/4157/1 "2012-03-16T17:06:03Z")

</div>

A connection to one of my ControlLogix PLCs keeps throwing an error “Key equals 0: length=\*\*\*”  
What settings should I adjust to correct this?

---

<div class="post-metadata">

**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:** [March 16, 2012, 5:14pm UTC](https://forum.inductiveautomation.com/t/controllogix-driver-device-key-equals-0/4157/2 "2012-03-16T17:14:54Z")

</div>

There is no setting to correct this. We need to stop logging that as an error.

---

<div class="post-metadata">

**Author:** ![weertske](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/weertske/32/3353_2.png) [@weertske](https://forum.inductiveautomation.com/u/weertske)\
**Post date:** [March 16, 2012, 5:25pm UTC](https://forum.inductiveautomation.com/t/controllogix-driver-device-key-equals-0/4157/3 "2012-03-16T17:25:25Z")

</div>

Thank you, I’ll just ignore it. 😕