I am using the MQTT Transmission module and during testing we are turning the MQTT module on and off to create Birth messages, is their something I could connect to a button to for a Birth generation? I am not finding looking through the documents of what would work.
You should be able to write True to [MQTT Transmission]Transmission Control/Refresh to initiate a node/device rebirth:
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Perfect! Gotta love MQTTFX…
Hi, is it possible to request a rebirth via MQTT? With some command? What is your recommendation?
Sure, just write to the Rebirth tag under Node Control beneath a given node in MQTT Engine:
I think that is only for MQTT Engine? I can not seem to find that with Transmission.
My second comment applied to MQTT Engine based on the question from @daspuru of how you can request a [remote] node to rebirth. The first example applied to MQTT Transmission and how you can have that [local] node do a rebirth.
I have some gripe w/ MQTTfx. It hadn't been updated in years, and has had a bug since 2018 that really gets in the way of using it with Sparkplug topics since they all start with spBv1.0. The best workaround is to start your subscription with a +/group/ when you don't want to see all the traffic for everything.
And just now, while checking for updates, I see it's being maintained commercially and there are no free versions any more.
So, yeah, that version with the bug is quite likely the last free version ever... 
Yeah I am surprised like someone like HiveMQ or another vendor has not made a more usable version with support outside of that commercial implementation.
It works for what it is I guess. Mosquito is super easy to deploy in docker so I could see it being super niche.
@justin.brzozoski , I never realized that's what was happening, lol. Thanks for pointing that out. I ended up getting to the same conclusion in a roundabout way, by subscribing to # and turning on the Topics Collector. Once I saw which topic I needed, then I would subscribe to spBv1.0/Topicname/# to get the results I was looking for.
from the ignition server side, each of the MQTT node folder has a subfolder “Node Control”.
under it, there’s a “rebirth” tag.
Is any of the “rebirth” tag working as “Refresh” from the MQTT client side?