# Trying to add a new PLC device

**URL:** <https://forum.inductiveautomation.com/t/trying-to-add-a-new-plc-device/88535>\
**Category:** General Discussion\
**Created:** [April 8, 2024, 5:31pm UTC](https://forum.inductiveautomation.com/t/trying-to-add-a-new-plc-device/88535 "2024-04-08T17:31:58Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ron.townsend](https://avatars.discourse-cdn.com/v4/letter/r/9d8465/32.png) [@ron.townsend](https://forum.inductiveautomation.com/u/ron.townsend)\
**Post date:** [April 8, 2024, 5:31pm UTC](https://forum.inductiveautomation.com/t/trying-to-add-a-new-plc-device/88535/1 "2024-04-08T17:31:58Z")

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I'm trying to add an AB micrologix 1500 PLC, the only selection is 1000 to 1400 for the micrologix. I've tried all the AB drivers with no luck. Could sure use a suggestion or 2. Thanks

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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:** [April 8, 2024, 5:32pm UTC](https://forum.inductiveautomation.com/t/trying-to-add-a-new-plc-device/88535/2 "2024-04-08T17:32:59Z")

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MLX 1200 and 1500 are only partially supported. You should be able to connect and manually address tags, but browsing doesn't work.

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<div class="post-metadata">

**Author:** ![ron.townsend](https://avatars.discourse-cdn.com/v4/letter/r/9d8465/32.png) [@ron.townsend](https://forum.inductiveautomation.com/u/ron.townsend)\
**Post date:** [April 8, 2024, 5:40pm UTC](https://forum.inductiveautomation.com/t/trying-to-add-a-new-plc-device/88535/3 "2024-04-08T17:40:00Z")

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Using the micrologix driver? I keep getting "Determining Protocol" message but no connection.

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<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:** [April 8, 2024, 5:46pm UTC](https://forum.inductiveautomation.com/t/trying-to-add-a-new-plc-device/88535/4 "2024-04-08T17:46:58Z")

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Yep. Maybe there's a connection path you need? Try `1,0` even just to force it into bridged EIP mode.

edit: oh, also try the "disable processor browse" setting.

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<div class="post-metadata">

**Author:** ![ron.townsend](https://avatars.discourse-cdn.com/v4/letter/r/9d8465/32.png) [@ron.townsend](https://forum.inductiveautomation.com/u/ron.townsend)\
**Post date:** [April 8, 2024, 5:55pm UTC](https://forum.inductiveautomation.com/t/trying-to-add-a-new-plc-device/88535/5 "2024-04-08T17:55:52Z")

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Tried both suggestions, still getting the same message. "Determining Protocol"