# Connecting to Micrologix 1400 through CompactLogix 5069

**URL:** <https://forum.inductiveautomation.com/t/connecting-to-micrologix-1400-through-compactlogix-5069/34247>\
**Category:** Ignition\
**Created:** [April 27, 2020, 6:39pm UTC](https://forum.inductiveautomation.com/t/connecting-to-micrologix-1400-through-compactlogix-5069/34247 "2020-04-27T18:39:35Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Nathan\_ICS](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nathan_ics/32/4047_2.png) [@Nathan\_ICS](https://forum.inductiveautomation.com/u/Nathan_ICS)\
**Post date:** [April 27, 2020, 6:39pm UTC](https://forum.inductiveautomation.com/t/connecting-to-micrologix-1400-through-compactlogix-5069/34247/1 "2020-04-27T18:39:35Z")

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I’m trying to connect to a MicroLogix 1400 v2.015 through the backplane of a CompactLogix 5069-L340ERMS2 v31.001(Dual IP Mode). The plant network is connected to port A1(172.20.0.x) and the IO network is on port A2(10.1.1.x). The MicroLogix is on the IO network.  
I have tested the path(3, 172.20.0.10, 4, 10.1.1.2) and it works from another 5069-CompactLogix to the MicroLogix through the backplane.  
The Ignition server(v8.0.11) is on the plant network and the device is it up like this:  
Hostname: 10.1.1.2  
Connection Path: 172.20.0.10,4

All I ever get is “Connecting: Determining Protocol” or “Disconnected: Determining Protocol”

I’m not sure what I’m missing here.

Thank you,

FYI I had to look this up as well.  
_When you configure a MSG instruction on a CompactLogix 5380 controller that operates in Dual-IP mode, use the following paths:_

\*\* Enterprise port (Port A1) - 3, IP address\*  
\*\* Device-level port (Port A2) - 4, IP address\*

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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:** [April 27, 2020, 7:02pm UTC](https://forum.inductiveautomation.com/t/connecting-to-micrologix-1400-through-compactlogix-5069/34247/2 "2020-04-27T19:02:04Z")

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Haven’t done a Micrologix, but routing through the L340 should be more like:  
Hostname: 172.20.0.10  
Connection path: 4, 10.1.1.2

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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:** [April 27, 2020, 7:03pm UTC](https://forum.inductiveautomation.com/t/connecting-to-micrologix-1400-through-compactlogix-5069/34247/3 "2020-04-27T19:03:30Z")

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Some extra reading material. 😉

> [@Connection path for CompactLogix 5380](http://forum.inductiveautomation.com/t/connection-path-for-compactlogix-5380/12697):
>
> The new 5380 series can be configured to use a different IP address on each port. [8)] What would the connection path then be in the attached example? Also, as another thought comes to me, can the target use the legacy driver, or will I need to update to use the v21+ driver, since I’m bridging through a newer unit? [image]

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**Author:** ![Nathan\_ICS](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nathan_ics/32/4047_2.png) [@Nathan\_ICS](https://forum.inductiveautomation.com/u/Nathan_ICS)\
**Post date:** [April 27, 2020, 7:13pm UTC](https://forum.inductiveautomation.com/t/connecting-to-micrologix-1400-through-compactlogix-5069/34247/4 "2020-04-27T19:13:15Z")

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That was it. I even looked at my other projects where I had jumped backplanes and looked right past it. Thank you,