# Does MQTT Transmission Module have legacy protocols pre-installed?

**URL:** <https://forum.inductiveautomation.com/t/does-mqtt-transmission-module-have-legacy-protocols-pre-installed/29630>\
**Category:** Ignition\
**Created:** [November 4, 2019, 6:47am UTC](https://forum.inductiveautomation.com/t/does-mqtt-transmission-module-have-legacy-protocols-pre-installed/29630 "2019-11-04T06:47:45Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![michaelryan.alimagno](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/michaelryan.alimagno/32/11766_2.png) [@michaelryan.alimagno](https://forum.inductiveautomation.com/u/michaelryan.alimagno)\
**Post date:** [November 4, 2019, 6:47am UTC](https://forum.inductiveautomation.com/t/does-mqtt-transmission-module-have-legacy-protocols-pre-installed/29630/1 "2019-11-04T06:47:45Z")

</div>

Does MQTT Transmission Module have legacy protocols pre-installed such as DNP3.0 and Modbus, etc. to get the data from legacy device as poll/response in native protocol? Or still need to install the driver module to the specific legacy protocols?

---

<div class="post-metadata">

**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [November 4, 2019, 4:19pm UTC](https://forum.inductiveautomation.com/t/does-mqtt-transmission-module-have-legacy-protocols-pre-installed/29630/2 "2019-11-04T16:19:27Z")

</div>

The MQTT modules are totally separate from Ignition drivers. Transmission allows you to expose whatever tags you have configured on a gateway as MQTT topics - you still need to have those tags available, which means that you must have the requisite drivers installed.

---

<div class="post-metadata">

**Author:** ![michaelryan.alimagno](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/michaelryan.alimagno/32/11766_2.png) [@michaelryan.alimagno](https://forum.inductiveautomation.com/u/michaelryan.alimagno)\
**Post date:** [November 4, 2019, 11:35pm UTC](https://forum.inductiveautomation.com/t/does-mqtt-transmission-module-have-legacy-protocols-pre-installed/29630/3 "2019-11-04T23:35:12Z")

</div>

With that cleared the topic. Thanks @paul-griffith

---

<div class="post-metadata">

**Author:** ![michaelryan.alimagno](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/michaelryan.alimagno/32/11766_2.png) [@michaelryan.alimagno](https://forum.inductiveautomation.com/u/michaelryan.alimagno)\
**Post date:** [November 5, 2019, 1:46pm UTC](https://forum.inductiveautomation.com/t/does-mqtt-transmission-module-have-legacy-protocols-pre-installed/29630/4 "2019-11-05T13:46:35Z")

</div>

I have another question @paul-griffith. How about the mqtt edge Gateway sparkplug? Does it have the legacy communication protocol drivers such as modbus, dnp3, etc. pre-installed?