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+--- Thread: MQTT Status Problem (/showthread.php?tid=6153)
MQTT Status Problem - savaskorkmaz - 13.10.2025
Hello,
We are communicating with a relay module via MQTT. When we connect using MQTT Explorer, we send the value 00 00 00 07 to the topic address inels/set/2C6A6F1070CE/106/02EAD5 to set the relay output to true. When we send 00 00 00 06, the relay becomes false.
Meanwhile, we also receive the status information from the topic inels/status/2C6A6F1070CE/106/02EAD5 — if it’s true, the data is 00 00 00 07 00 00, and if it’s false, it’s 00 00 00 06 00 00.
Based on this information, I created two points in the Logic Machine MQTT Client — one for the command and one for the status. The issue is that I can send commands from the Logic Machine, but I can’t transfer the status information back to it. I’ve attached screenshots showing my MQTT Client point settings and the MQTT Explorer view.
What kind of mistake could I be making in the status configuration?
RE: MQTT Status Problem - Daniel - 13.10.2025
Remove the string conversion and in script for in (from MQTT) log(payload)
See what you get there
RE: MQTT Status Problem - savaskorkmaz - 13.10.2025
Here are the logs as general and as individiual after log(payload)
RE: MQTT Status Problem - admin - 13.10.2025
It uses new line instead of space for status value. Use a script for status conversion:
Code:
if payload:find('07') then
return true
elseif payload:find('06') then
return false
endRE: MQTT Status Problem - savaskorkmaz - 13.10.2025
It worked. Thx a lot.